Concrete Technology Most Important MCQs Part: 3

801 - The removal of excess air after placing concrete helps in increasing the strength of concrete by ___________

A. 15-20%

B. 20-25%

C. 30-50%

D. 50-70%

15-20%

802 - The risk of segregation is more for

A. wetter mix

B. larger proportion of maximum size aggregate

C. coarser grading

D. all the above.

all the above.

803 - The rock which is not calcareous, is :

A. lime stone

B. macl

C. chalk

D. laterite

laterite

804 - The separation of water or water-cement mixture from the freshly mixed concrete is known as bleeding.

A. TRUE

B. FALSE

C. Nothing Can be Said

D. None of the mentioned

TRUE

805 - The shrinkage of concrete

A. is proportional to water content is the mix

B. is proportional to cement concrete

C. increases with age of concrete

D. all the above.

all the above.

806 - The shuttering of a hall measuring 4 m x 5 m, can be removed after

A. 5 days

B. 7 days

C. 10 days

D. 14 days

7 days

807 - The size of fine aggregates does not exceed

A. 2.75 mm

B. 3.00 mm

C. 3.75 mm

D. 4.75 mm

4.75 mm

808 - The slab is designed as one way if the ratio of long span to short span is_____________?

A. less than 1

B. between 1 and 1.5

C. between 1.5 and 2

D. greater than 2

greater than 2

809 - The slump would not exceed 50 mm when compacting concrete with vibrators.

A. TRUE

B. FALSE

C. Nothing Can be Said

D. None of the mentioned

TRUE

810 - The slurry with the desired lime content passes into the _____

A. Clinker

B. Rotary kiln

C. Slurry tank

D. Cement silo

Rotary kiln

811 - The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and ___ is liberated.

A. SiO2

B. CO2

C. Gypsum

D. CaO

CO2

812 - The sound absorption coefficient of light weight concrete is nearly __________

A. Twice

B. Thrice

C. Four times

D. Six times

Twice

813 - The specific heat of the aggregates is _____________

A. The ability to conduct the heat

B. The ability to insulate the heat

C. Is a measure of its heat capacity

D. Same as thermal conductivity

Is a measure of its heat capacity

814 - The specific surface (m2/kg) of silica fume.

A. 370

B. 15000-30000

C. 45000

D. 420

15000-30000

815 - The specifications of a cement bag for storage, are

A. weight 50 kg

B. height 18 cm

C. plan area 3000 sq. cm

D. all the above.

all the above.

816 - The standard sand now a days used in India, is obtained from

A. Ennore (Madras)

B. Jaipur

C. Jullundur (Punjab)

D. Hyderabad

Ennore (Madras)

817 - The standard sand now a days used in India, is obtained from

A. Jaipur (Rajasthan)

B. Jullundur (Punjab)

C. Hyderabad (Andhra Pradesh)

D. Ennore (Madras)

Ennore (Madras)

818 - The strength and quality of concrete, depend upon:

A. grading of aggregates

B. surface area of aggregates

C. shape of aggregates

D. all the above.

all the above.

819 - The strength of the resulting concrete is _______ % lower than when dry aggregate is used for the same content.

A. 45056

B. 45214

C. 15-20

D. 0-5

45056

820 - The surface where two successive placements of concrete meet, is known as

A. Contraction joint

B. Expansion joint

C. Construction joint

D. both (a) and (b)

Construction joint

821 - The tensile properties of a low-pressure plasma-deposited nickel-base superalloy from ____________

A. 25 to 100° C

B. 250 to 1010° C

C. 25 to 1010° C

D. 100 to 250° C

25 to 1010° C

822 - The thermal conductivity of the aggregates is ______________

A. The ability to conduct the heat

B. The ability to insulate the heat

C. Is a measure of its heat capacity

D. Same as thermal conductivity

The ability to conduct the heat

823 - The tolerances on the cross-section of the test specimens shall be within ± ___________

A. 0.01

B. 0.02

C. 0.03

D. 0.05

0.02

824 - The tolerances on the cross-section of the test specimens shall be within ± ____________

A. 0.01

B. 0.02

C. 0.03

D. 0.05

0.02

825 - The top diameter, bottom diameter and the height of a slump mould are :

A. 10 cm, 20 cm, 30 cm

B. 10 cm, 30 cm, 20 cm

C. 20 cm, 10 cm, 30 cm

D. 20 cm, 30 cm, 10 cm

10 cm, 20 cm, 30 cm

826 - The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is

A. rounded aggregate

B. irregular aggregate

C. angular aggregate

D. flaky aggregate

rounded aggregate

827 - The type of aggregates of same nominal size, which contain less voids when compacted, are

A. rounded spherical

B. irregular

C. flaky

D. none of these.

rounded spherical

828 - The unit weight of heavy weight concrete varies from __________ kg/m3.

A. 1000

B. 2400

C. 2000

D. 1400

2400

829 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

A. TRUE

B. FALSE

C. Nothing Can be Said

D. None of the mentioned

TRUE

830 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

A. TRUE

B. FALSE

C. Nothing Can be Said

D. None of the mentioned

TRUE

831 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

A. TRUE

B. FALSE

C. Nothing Can be Said

D. None of the mentioned

TRUE

832 - The vegetable oil if present in mixing for concrete

A. Improves strength

B. Reduces strength

C. Gives more slump

D. Gives a smooth surface

Reduces strength

833 - The void ratio of

A. single size coarse aggregate is roughly 0.45.

B. graded coarse aggregate is roughly 0.040

C. fine aggregate is roughly 0.45

D. all the above.

all the above.

834 - The w/c ratio is kept in the range of _______

A. .1-.2

B. .38-.52

C. .83-1

D. .25-.38

.38-.52

835 - The water–cement ratio is the ratio of ___

A. Weight of water to the weight of cement

B. Volume of water to the volume of cement

C. Density of water to the Density of cement

D. Weight of water to the weight of aggregates

Weight of water to the weight of cement

836 - Theoretical value for bulk modulus of clay __________

A. 20 and 50 GPa

B. 30 and 40 GPa

C. 100-150 GPa

D. 200 GPa

20 and 50 GPa

837 - This cement content should ________ the cement content required based on durability criteria.

A. Be more than

B. Be equal to

C. Be less than

D. Not be less than

Not be less than

838 - This strain increases over time due to _________

A. Creep

B. Elastic modulus

C. Short term modulus of elasticity

D. Long term modulus of elasticity

Creep

839 - This type of concrete possesses __________

A. High insulating property

B. High conducting property

C. Low insulating property

D. Very high insulating property

Very high insulating property

840 - To avoid trapped air produced by clay flocculation, we used ___ in distilled water.

A. (NaPO3)6

B. Na4P2O7

C. Na5P3O10

D. PO4

(NaPO3)6

841 - To determine the fineness of cement ____

A. Grain size is smaller than specified mesh size

B. Grain size is larger than specified mesh size

C. Grain size is equal to specified mesh size

D. Grain size is 1mm

Grain size is larger than specified mesh size

842 - To determine the fineness of cement by dry sieving as per IS: 4031 (Part 1) – 1996.The principle of this is that we determine the proportion of cement whose grain size is larger than specified mesh size.

A. The apparatus used are ___ IS Sieve, Balance capable of weighing 10g to the nearest 10mg.

B. 90μm

C. 45μm

D. 22.5μm

The apparatus used are ___ IS Sieve, Balance capable of weighing 10g to the nearest 10mg.

843 - To determine the modulus of rupture, the size of test specimen used is_______________?

A. 150 x150 x500 mm

B. 100 x100 x700 mm

C. 150 x150 x700 mm

D. 100 x100 x500 mm

150 x150 x700 mm

844 - To ensure constant moisture content in aggregates

A. area of each aggregate pile should be large

B. height of each aggregate pile should not exceed 1.50 m

C. aggregate pile should be left for 24 hours before aggregates are used

D. all the above.

all the above.

845 - To hydrate 500kg of cement full water needed, is

A. 100 kg

B. 110 kg

C. 120 kg

D. 130 kg

130 kg

846 - To measure the concrete temperature, the stem of the thermometer must be kept by at least ___ inches of concrete.

A. 1

B. 2

C. 3

D. 4

847 - To minimise the effect of differential settlement, the area of a footing should be designed for______________?

A. dead load only

B. dead load + live load

C. dead load + fraction of live load

D. live load + fraction of dead load

dead load + fraction of live load

848 - To neutralize 200 ml of sample should not require more than 10 ml of __ normal HCI using methyl orange.

A. 1

B. 0.1

C. 10

D. 0.01

0.1

849 - To neutralize 200 ml of sample should not require more than 10 ml of __________ normal HCI using methyl orange.

A. 1

B. 0.1

C. 10

D. 0.01

0.1

850 - To neutralize 200 ml sample of water should not require more than _________ ml of 0.1 normal NaOH.

A. 1

B. 2

C. 3

D. 4

851 - To obtain a very high strength concrete, use very fine grained

A. Granite

B. Magnetite

C. Barite

D. Volcanic scoria.

Granite

852 - To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between

A. 1100° and 1200°C

B. 1200° and 1300°C

C. 1300° and 1400°C

D. 1400° and 1500°C

1400° and 1500°C

853 - To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between ___

A. 1100° and 1200°C

B. 1200° and 1300°C

C. 1300° and 1400°C

D. 1400° and 1500°C

1400° and 1500°C

854 - To prevent segregation, the maximum height for placing concrete, is

A. 100 cm

B. 125 cm

C. 150 cm

D. 200 cm

100 cm

855 - Too wet concrete may cause

A. weakness of concrete

B. excessive laitance

C. segregation

D. all the above.

all the above.

856 - Transport of concrete by pumps, is done for a distance of

A. 100 m

B. 200 m

C. 300 m

D. 400 m

400 m

857 - Ultimate strength of cold drawn high steel wires_______________?

A. increases with increase in diameter of bar

B. decreases with increase in diameter of bar

C. does not depend on diameter of bar

D. none of the above

decreases with increase in diameter of bar

858 - Ultra-High Performance Concrete (UHPC), also known as ______

A. Active powder concrete

B. NPC

C. Reactive powder concrete

D. High Strength concrete

Reactive powder concrete

859 - Under normal conditions using an ordinary cement, the period of removal of the form work, is :

A. 7 days for beam soffits

B. 14 days for bottom slabs of spans 4.6 m and more

C. 21 days for bottom beams over 6 m spans

D. all the above.

all the above.

860 - Use of HSC in column __________

A. It increase the size of the column

B. It decrease the size of the column

C. Doesn’t affect

D. Decrease the strength

It decrease the size of the column

861 - Use of HSC in column ___________

A. Decrease the no of steel required in the same column

B. Increase the no of steel required in the same column

C. Decrease the no of steel required in the different column

D. Increase the no of steel required in the different column

Decrease the no of steel required in the same column

862 - Vacuum mixing systems reduce the exposure by _________ %.

A. 20

B. 40

C. 50

D. 10

863 - Valid range for n, the percentage voids, is______________?

A. 0

B. 0

C. n<0

D. None of the mentioned

864 - Valid range for S, the degree of saturation of soil in percentage is______________?

A. S>0

B. S<0

C. 0

D. 0 < S < 100

0 < S < 100

865 - Vicat apparatus is used for

A. fineness test

B. consistency test

C. test for setting time

D. test for tensile strength

consistency test

866 - Vicat's apparatus is used for

A. fineness test

B. consistency test

C. setting time test

D. soundness test

consistency test

867 - Voids ratio of a soil mass can_________________?

A. never be greater than unity

B. be zero

C. take any value greater than zero

D. take values between 0 and 1 only

take any value greater than zero

868 - Volumetric strain is equal to ___________ times the linear strain.

A. 1

B. 2

C. 3

D. 4

869 - 'Ware house pack' of cement means

A. full capacity of the ware house

B. pressure exertion of the bags of upper layers

C. pressure compaction of the bags on lower layers

D. packing the ware house

pressure compaction of the bags on lower layers

870 - Water cement ratio is

A. volume of water to that of cement

B. weight of water to that of cement

C. weight of concrete to that of water

D. both (a) and (b) of the above.

both (a) and (b) of the above.

871 - Water cement ratio is ______

A. Volume of water to the volume of cement

B. Volume of water to the volume of concrete

C. Volume of concrete to the volume of cement

D. Volume of water to the volume of aggregates

Volume of water to the volume of cement

872 - Water cement ratio is generally expressed in volume of water required per

A. 10 kg

B. 20 kg

C. 30 kg

D. 50 kg

50 kg

873 - Water content of soil can______________?

A. never be greater than 100 %

B. take values only from 0 % to 100 %

C. be less than 0 %

D. be greater than 100 %

be greater than 100 %

874 - Water required per bag of cement, is

A. 7 kg

B. 14 kg

C. 21 kg

D. 35 kg

35 kg

875 - Water-filled voids ranges from _______ % of the total volume of the component for dense concrete.

A. 5

B. 15

C. 10

D. 20

876 - Water-filled voids ranges from _______ % of the total volume of the component for gap-graded concrete.

A. 5

B. 15

C. 10

D. 20

877 - Well cured concrete _________ thermal, plastic & drying shrinkage cracks.

A. Doesn’t affect

B. Maximize

C. Minimize

D. Create

Minimize

878 - What are artificial aggregates?

A. Those who obtained from river beds

B. Those who are manufactured naturally

C. Those who are mechanically obtained

D. Who has smooth surface

Those who are mechanically obtained

879 - What C 1064 test under Standard ASTM test method?

A. Test Method for Sampling Freshly Mixed Concrete

B. Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

C. Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

D. Test Method for Temperature of Freshly Mixed Portland-Cement Concrete

Test Method for Temperature of Freshly Mixed Portland-Cement Concrete

880 - What C 231 test under Standard ASTM test method?

A. Test Method for Sampling Freshly Mixed Concrete

B. Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

C. Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

D. Test Method for Temperature of Freshly Mixed Portland-Cement Concrete

Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

881 - What C138 test under Standard ASTM test method?

A. Test Method for Making and Curing Concrete Test Specimens in the Field

B. Test Method for Compressive Strength of Cylindrical Specimen

C. Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

D. Test Method for Slump of Hydraulic Cement Concrete

Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

882 - What C143 test under Standard ASTM test method?

A. Test Method for Making and Curing Concrete Test Specimens in the Field

B. Test Method for Compressive Strength of Cylindrical Specimen

C. Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

D. Test Method for Slump of Hydraulic Cement Concrete

Test Method for Slump of Hydraulic Cement Concrete

883 - What C172 test under Standard ASTM test method?

A. Test Method for Sampling Freshly Mixed Concrete

B. Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

C. Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

D. Test Method for Temperature of Freshly Mixed Portland-Cement Concrete

Test Method for Sampling Freshly Mixed Concrete

884 - What C173 test under Standard ASTM test method?

A. Test Method for Sampling Freshly Mixed Concrete

B. Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

C. Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

D. Test Method for Temperature of Freshly Mixed Portland-Cement Concrete

Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method

885 - What C31 test under Standard ASTM test method?

A. Test Method for Making and Curing Concrete Test Specimens in the Field

B. Test Method for Compressive Strength of Cylindrical Specimen

C. Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

D. Test Method for Slump of Hydraulic Cement Concrete

Test Method for Making and Curing Concrete Test Specimens in the Field

886 - What C39 test under Standard ASTM test method?

A. Test Method for Making and Curing Concrete Test Specimens in the Field

B. Test Method for Compressive Strength of Cylindrical Specimen

C. Test Method for Unit Weight, Yield, and Air Content (Gravimetric) of Concrete

D. Test Method for Slump of Hydraulic Cement Concrete

Test Method for Compressive Strength of Cylindrical Specimen

887 - What could be the possible answer among the following for compressive strength of high strength concrete?

A. 10MPa

B. 20MPa

C. 30MPa

D. 40MPa

40MPa

888 - What could be the possible answer among the following for water cement ratio for high strength concrete?

A. 0.5

B. 0.45

C. 0.4

D. 0.35

0.35

889 - What do you mean by admixtures?

A. Ingredients which are added to in cement before or after concrete mix

B. Ingredients which are added to make aggregates healthier

C. Ingredients added in cement to make it shinier

D. Ingredients added in concrete to make good workability

Ingredients which are added to in cement before or after concrete mix

890 - What do you mean by admixtures?

A. Ingredients which are added to in cement before or after concrete mix

B. Ingredients which are added to make aggregates healthier

C. Ingredients added in cement to make it shinier

D. Ingredients added in concrete to make good workability

Ingredients which are added to in cement before or after concrete mix

891 - What do you mean by bulking?

A. The volume increase of fine aggregate due to presence of moisture content in it

B. The moisture present in aggregate forms a film around each particle

C. Fine aggregate shows completely realistic volume

D. The state of setting someone or something apart from others

The volume increase of fine aggregate due to presence of moisture content in it

892 - What do you mean by workability?

A. ASTM C 125 defines workability as the property determining the effort required to manipulate a freshly mixed quantity of concrete with maximum loss of homogeneity

B. ASTM C 125 defines workability as the property determining the effort required to manipulate a freshly mixed quantity of concrete with minimum loss of heterogeneity

C. The strict definition of workability is the amount of useful external work, against the external friction between the individual particles in the concrete, necessary to produce full compaction

D. The workability is also defined as the ease with which a freshly mixed concrete can be properly compacted and also that it can be transported, placed, and finished

The workability is also defined as the ease with which a freshly mixed concrete can be properly compacted and also that it can be transported, placed, and finished

893 - What does 240 in power’s experiment stands for?

A. Gel space ratio

B. Water cement ratio

C. Intrinsic strength of gel

D. Extrinsic strength of gel

Intrinsic strength of gel

894 - What does x3 in power’s experiment stands for?

A. Gel space ratio

B. Water cement ratio

C. Intrinsic strength of gel

D. Extrinsic strength of gel

Gel space ratio

895 - What does x3 in power’s experiment stands for?

A. Gel space ratio

B. Water cement ratio

C. Intrinsic strength of gel

D. Extrinsic strength of gel

Gel space ratio

896 - What is accelerator?

A. Which speed up the initial set of concrete

B. Which delays the initial set of concrete

C. Which speed up the final set of concrete

D. Which delays the final set of concrete

Which speed up the initial set of concrete

897 - What is autogenous shrinkage?

A. It is not a result of any change in the concrete production process. Rather, it is a result of certain environmental conditions which frequently occur in the Central Missouri area

B. It is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile

C. It is an important phenomenon in young concrete. At low w/c ratios, less than about 0.42, all the water is rapidly drawn into the hydration process and the demand for more water creates very fine capillaries

D. It occurs when the concrete is exposed to air containing carbon dioxide

It is an important phenomenon in young concrete. At low w/c ratios, less than about 0.42, all the water is rapidly drawn into the hydration process and the demand for more water creates very fine capillaries

898 - What is bulking of coarse aggregates?

A. More than sand

B. Less than sand

C. Equal than sand

D. Negligible

Negligible

899 - What is carbonation shrinkage?

A. It is not a result of any change in the concrete production process. Rather, it is a result of certain environmental conditions which frequently occur in the Central Missouri area

B. It is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile

D. It occurs when the concrete is exposed to air containing carbon dioxide

It occurs when the concrete is exposed to air containing carbon dioxide

900 - What is concrete maturity?

A. Concrete strength is directly related to age history

B. Concrete strength is indirectly related to age history

C. Concrete strength is directly related to age and its temperature history

D. Concrete strength is indirectly related to age and its temperature history

Concrete strength is directly related to age and its temperature history

901 - What is curing?

A. Dehydration

B. Hydration

C. Drying

D. Dipping

Hydration

902 - What is destructive test?

A. Destructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Destructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Destructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

903 - What is destructive test?

A. Destructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Destructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Destructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

904 - What is destructive test?

A. Destructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Destructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Destructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Destructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

905 - What is dry process?

A. Grinding and mixing of the raw materials in their dry state

B. Grinding and mixing of the raw materials in their wet state

C. Grinding and mixing of the raw materials in their medium state

D. Grinding and mixing of the raw materials in their super dry state

Grinding and mixing of the raw materials in their dry state

906 - What is drying shrinkage?

A. It is not a result of any change in the concrete production process. Rather, it is a result of certain environmental conditions which frequently occur in the Central Missouri area

B. It is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile

D. It occurs when the concrete is exposed to air containing carbon dioxide

It is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile

907 - What is elastic strains?

A. These are the instantaneous deformations that occur when an external stress is first applied

B. These deformations occur either on loss of moisture from the concrete on cooling of concrete

C. It is the time-dependent deformation that occurs on the prolonged application of stress

D. Any one or combinations of the above types of deformations in a hardened concrete leads to cracking

These are the instantaneous deformations that occur when an external stress is first applied

908 - What is elastic strains?

A. These are the instantaneous deformations that occur when an external stress is first applied

B. These deformations occur either on loss of moisture from the concrete on cooling of concrete

C. It is the time-dependent deformation that occurs on the prolonged application of stress

D. Any one or combinations of the above types of deformations in a hardened concrete leads to cracking.

These are the instantaneous deformations that occur when an external stress is first applied

909 - What is elastic strains?

A. These are the instantaneous deformations that occur when an external stress is first applied

B. These deformations occur either on loss of moisture from the concrete on cooling of concrete

C. It is the time-dependent deformation that occurs on the prolonged application of stress

D. Any one or combinations of the above types of deformations in a hardened concrete leads to cracking

These are the instantaneous deformations that occur when an external stress is first applied

910 - What is equivalent flexural load?

A. The stress value obtained when the peak load value is used in the equation of modulus of rupture

B. The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

C. The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

D. Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

911 - What is equivalent flexural strength ratio?

A. The stress value obtained when the peak load value is used in the equation of modulus of rupture

B. The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

C. The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

D. Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

912 - What is equivalent flexural strength?

A. The stress value obtained when the peak load value is used in the equation of modulus of rupture

B. The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

C. The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

D. Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

913 - What is external sulphates attack?

A. Industrial waste water

B. Presence of natural gypsum in the aggregates

C. Hydraulic cements

D. Portland cement might be over-sulphated

Industrial waste water

914 - What is final setting time?

A. The time at which cement paste loses its plasticity

B. The time to reach that stage at which cement paste loses its elasticity

C. The time at which cement paste gains its plasticity

D. The time when cement paste becomes hardened

The time at which cement paste loses its plasticity

915 - What is final setting time?

A. The time at which cement paste loses its plasticity

B. The time to reach that stage at which cement paste loses its elasticity

C. The time at which cement paste gains its plasticity

D. The time when cement paste becomes hardened

The time at which cement paste loses its plasticity

916 - What is flexural strength?

A. The stress value obtained when the peak load value is used in the equation of modulus of rupture

B. The stress value representing the average flexural strength in the post peak region up to a specified deflection of L/n obtained when Pe,n is used in the equation of modulus of rupture

C. The load value representing the average load-carrying capacity in the post peak region up to a specified deflection of L/n

D. Value of the mean equivalent flexural strength normalized with respect to mean flexural strength

The stress value obtained when the peak load value is used in the equation of modulus of rupture

917 - What is hydration of cement?

A. Chemical reaction of cement with acid

B. Chemical reaction of cement with water

C. Chemical reaction of cement with base

D. Chemical reaction of cement with salt, and acid

Chemical reaction of cement with water

918 - What is initial setting time?

A. The time at which cement paste loses its plasticity

B. The time at which cement paste loses its elasticity

C. The time at which cement paste gains its plasticity

D. The time at which cement paste gains its elasticity

The time at which cement paste loses its plasticity

919 - What is internal sulphates attack?

A. Sulphate are more usually are a result of high-sulphate soils

B. Sulphate are more usually are a result of ground water

C. Industrial waste water

D. Hydraulic cements

Hydraulic cements

920 - What is internal sulphates attack?

A. Presence of natural gypsum in the aggregates

B. Soil may contain excess of gypsum

C. Sulphate are more usually are a result of ground water

D. Industrial waste water

Presence of natural gypsum in the aggregates

921 - What is nondestructive test?

A. Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Nondestructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Nondestructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Nondestructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

922 - What is nondestructive test?

A. Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Nondestructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Nondestructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Nondestructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

923 - What is nondestructive test?

A. Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Nondestructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Nondestructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Nondestructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

924 - What is nondestructive test?

A. Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

B. Nondestructive tests are applications for detecting flaws that impair the use of the materials such as pressure testing

C. Nondestructive tests are applications for detecting flaws in materials with impairing their usefulness

D. Nondestructive tests are applications for detecting flaws that do not impair the use of the materials such as pressure testing

Nondestructive tests are applications for detecting flaws in materials without impairing their usefulness

925 - What is plastic shrinkage?

A. It is not a result of any change in the concrete production process. Rather, it is a result of certain environmental conditions which occurs in the Central Missouri area

B. It is defined as the contracting of a hardened concrete mixture due to the loss of capillary water. This shrinkage causes an increase in tensile

D. It occurs when the concrete is exposed to air containing carbon dioxide

It is not a result of any change in the concrete production process. Rather, it is a result of certain environmental conditions which occurs in the Central Missouri area

926 - What is plasticizers?

A. Which adds water for workability

B. Which reduces water for workability

C. Which decreases workability at the same water content

D. Which oxidizes water for workability

Which reduces water for workability

927 - What is plasticizers?

A. Which adds water for workability

B. Which reduces water for workability

C. Which decreases workability at the same water content

D. Which oxidizes water for workability

Which reduces water for workability

928 - What is retender?

A. Which speed up the initial set of concrete

B. Which delays the initial set of concrete

C. Which speed up the final set of concrete

D. Which delays the final set of concrete

Which delays the initial set of concrete

929 - What is Silica Fume?

A. Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys

B. Silica fume is a mono product of producing silicon metal or ferrosilicon alloys

C. Most commonly found in nature as quartz and in various living organisms

D. Hydrocarbon combustion affords the two principal carbon oxides: carbon monoxide and carbon dioxide

Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys

930 - What is soundness?

A. Soundness of cement is the property by virtue of which the cement does not undergo any appreciable expansion

B. Soundness of cement is the property by virtue of which the cement does undergo any appreciable expansion

C. Soundness of cement is the property by virtue of which the cement does not undergo any appreciable contraction

D. Soundness of cement is the property by virtue of which the cement does undergo any appreciable contraction

Soundness of cement is the property by virtue of which the cement does not undergo any appreciable expansion

931 - What is standard consistency?

A. Consistency which permits the Vicat’s plunger

B. Ability of cement to maintain a constant volume

C. Durability in sea water

D. Free lime content

Consistency which permits the Vicat’s plunger

932 - What is super plasticizers?

A. Which adds water for workability

B. Which reduces high range of water for workability

C. Which decreases workability at the same water content

D. Which oxidizes water for workability

Which reduces high range of water for workability

933 - What is super plasticizers?

A. Which adds water for workability

B. Which reduces high range of water for workability

C. Which decreases workability at the same water content

D. Which oxidizes water for workability

Which reduces high range of water for workability

934 - What is the 10 day bending failure stress in N/mm2?

A. 40

B. 1500

C. 3.4

D. 180

3.4

935 - What is the 10 day bending young’s modulus in N/mm2?

A. 40

B. 1500

C. 3.4

D. 180

180

936 - What is the 10 day compressive failure stress in N/mm2?

A. 40

B. 1500

C. 3.4

D. 180

937 - What is the 10 day compressive young’s modulus in N/mm2?

A. 40

B. 1500

C. 3.4

D. 180

1500

938 - What is the 7 day bending failure stress in N/mm2?

A. 40

B. 1500

C. 3.3

D. 180

3.3

939 - What is the 7th day compressive failure stress in N/mm2?

A. 40

B. 1500

C. 38

D. 180

940 - What is the allowed reduction of water with super plasticizers without reducing workability.

A. 0.1

B. 0.2

C. 0.3

D. 0.4

0.3

941 - What is the allowed reduction of water with super plasticizers without reducing workability.

A. 0.1

B. 0.2

C. 0.3

D. 0.4

0.3

942 - What is the allowed reduction of water with super plasticizers without reducing workability?

A. 0.1

B. 0.2

C. 0.3

D. 0.4

0.3

943 - What is the amount of mixing water used to make LWC?

A. ½

B. 44960

C. ¼

D. 44929

44960

944 - What is the amount of Na2O & K2O in P.C. ?

A. 0.006

B. >>6%

C. <6%

D. 0

<6%

945 - What is the amount of water required to give the paste normal consistency for consistency test?

A. .78 times

B. .79 times

C. .77 times

D. .76 times

.78 times

946 - What is the amount used of plasticizers in cement by weight?

A. 0

B. .1-.4%

C. 0.01

D. 1-2%

.1-.4%

947 - What is the amount used of plasticizers in cement by weight?

A. 0

B. .1-.4%

C. 0.01

D. 1-2%

.1-.4%

948 - What is the approx amount of lime is present in cement?

A. 60-67%

B. 0.7

C. 0.75

D. 0.6

60-67%

949 - What is the approx amount of silica is present in cement?

A. 17-25%

B. 3-8%

C. 60-67%

D. .1-4%

17-25%

950 - What is the approx. mix proportion for M10?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.043819444444

951 - What is the approx. mix proportion for M10?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.043819444444

952 - What is the approx. mix proportion for M15?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.043101851852

953 - What is the approx. mix proportion for M15?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.043101851852

954 - What is the approx. mix proportion for M20?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.042424768519

955 - What is the approx. mix proportion for M20?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.042424768519

956 - What is the approx. mix proportion for M25?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.042384259259

957 - What is the approx. mix proportion for M25?

A. 0.043819444444

B. 0.043101851852

C. 0.042424768519

D. 0.042384259259

0.042384259259

958 - What is the approx. quantity of water in M10?

A. 60L

B. 45L

C. 34L

D. 85L

34L

959 - What is the approx. quantity of water in M5?

A. 60L

B. 45L

C. 34L

D. 85L

60L

960 - What is the approx. quantity of water in M7?

A. 60L

B. 45L

C. 34L

D. 85L

45L

961 - What is the bending strength of this concrete?

A. 60-115 MPa

B. 10-16 MPa

C. 35-50 GPa

D. 500 GPa

10-16 MPa

962 - What is the capacity of measuring cylinder?

A. 10ml

B. 50ml

C. 100ml

D. 1000ml

100ml

963 - What is the compaction factor for low degree of workability?

A. 0.78

B. 0.85

C. 0.92

D. 0.95

0.85

964 - What is the compaction factor for medium degree of workability?

A. 0.78

B. 0.85

C. 0.92

D. 0.95

0.92

965 - What is the compaction factor for medium degree of workability?

A. 0.78

B. 0.85

C. 0.92

D. 0.95

0.92

966 - What is the compaction factor for medium degree of workability?

A. 0.78

B. 0.85

C. 0.92

D. 0.95

0.92

967 - What is the composition of making the Mortar?

A. P.C. + Water

B. P.C. + Water + Sand

C. P.C. + Water + Sand + Gravel

D. Water + Sand + Gravel

P.C. + Water + Sand

968 - What is the compressive strength for UHPC?

A. 10-20 MPa

B. 60-100 MPa

C. 100-150 MPa

D. >150 MPa

100-150 MPa

969 - What is the compressive strength of this concrete?

A. 60-115 MPa

B. 10-16 MPa

C. 35-50 GPa

D. 500 GPa

60-115 MPa

970 - What is the content of Al2O3 in fly ash?

A. 30-60%

B. 15-30%

C. Up to 30%

D. 1-7%

15-30%

971 - What is the content of Al2O3 in fly ash?

A. 30-60%

B. 15-30%

C. Up to 30%

D. 1-7%

15-30%

972 - What is the content of SiO2 in fly ash?

A. 30-60%

B. 15-30%

C. Up to 30%

D. 1-7%

30-60%

973 - What is the content of unburnt fuel in fly ash?

A. 30-60%

B. 15-30%

C. Up to 30%

D. 1-7%

Up to 30%

974 - What is the density for this concrete in kg/m3?

A. 2400

B. 2200

C. 2000

D. 1800

2400

975 - What is the diameter and length of the kiln respectively?

A. 6m and 200m

B. 200m and 6m

C. 6m and 6m

D. 200m and 200m

6m and 200m

976 - What is the diameter of Clinker for making of Portland Cement?

A. .15-5 cm

B. .15-5 m

C. .3-4 cm

D. .3-4 m

.15-5 cm

977 - What is the diameter of hard pellets?

A. 10mm

B. 12mm

C. 15mm

D. 18mm

15mm

978 - What is the first step involved in the process of preparation of test sample of material?

A. Rough polishing

B. Fine grinding

C. Fine polishing

D. Etching

Fine grinding

979 - What is the full form of rH?

A. Rhesus factor

B. Relative humidity

C. Rush hour

D. Radio head

Relative humidity

980 - What is the gel/space ratio?

A. Volume of water to the volume of cement

B. Volume of the hydrated cement paste to the sum of volumes of the hydrated cement

C. Volume of the hydrated cement paste to the sum of volumes of the hydrated cement and of the capillary pores

D. Volume of gel to the volume of space present in concrete

Volume of the hydrated cement paste to the sum of volumes of the hydrated cement and of the capillary pores

981 - What is the limitation of Carboxylic acids in High range water reducers?

A. 0

B. 0.001

C. 0.002

D. 0.003

0.001

982 - What is the limitation of Carboxylic acids in High range water reducers?

A. 0

B. 0.001

C. 0.002

D. 0.003

0.001

983 - What is the limitation of plasticizers?

A. A good plasticizer is one which does not cause air-entrainment in concrete > .1-.2%

B. A good plasticizer is one which does not cause air-entrainment in concrete > 5%

C. A good plasticizer is one which does not cause air-entrainment in concrete > 10-20%

D. A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

984 - What is the limitation of plasticizers?

A. A good plasticizer is one which does not cause air-entrainment in concrete > .1-.2%

B. A good plasticizer is one which does not cause air-entrainment in concrete > 5%

C. A good plasticizer is one which does not cause air-entrainment in concrete > 10-20%

D. A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%

985 - What is the limitation of plasticizers?

A. A good plasticizer is one which does not cause air-entrainment in concrete > .1-.2%.

B. A good plasticizer is one which does not cause air-entrainment in concrete > 5%.

C. A good plasticizer is one which does not cause air-entrainment in concrete > 10-20%.

D. A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%.

A good plasticizer is one which does not cause air-entrainment in concrete > 1-2%.

986 - What is the linear coefficient of thermal expansibility for this concrete in 10-6/K?

A. 45150

B. 45148

C. 45214

D. 45275

45150

987 - What is the main function of set retarders?

A. Increase curing rate

B. Slows curing rate

C. Improves workability at low w/c ratio

D. Speeds up start of finishing operations

Slows curing rate

988 - What is the maximum limit (ppm) for Alkali Carbonates and Bicarbonates in water?

A. 500

B. 1000

C. 2000

D. 1500

1000

989 - What is the maximum limit (ppm) for chlorides in water?

A. 500

B. 1000

C. 2000

D. 1500

500

990 - What is the maximum limit (ppm) for SO3 in water?

A. 500

B. 1000

C. 2000

D. 1500

1000

991 - What is the maximum limit (ppm) for turbidity in water?

A. 500

B. 1000

C. 2000

D. 1500

1500

992 - What is the maximum size of split?

A. 1mm

B. .5mm

C. 10mm

D. 2mm

.5mm

993 - What is the maximum w/c ratio?

A. 0.2

B. 0.3

C. 0.4

D. 0.5

0.5

994 - What is the moisture content in slurry for dry process?

A. 35-50%

B. 0.12

C. 40-45%

D. 1

0.12

995 - What is the moisture content in slurry for wet process?

A. 35-50%

B. 0.12

C. 40-45%

D. 1

35-50%

996 - What is the moisture content in slurry for wet process?

A. 35-50%

B. 0.12

C. 40-45%

D. 1

35-50%

997 - What is the moisture content in slurry for wet process?

A. 35-50%

B. 0.12

C. 40-45%

D. 1

35-50%

998 - What is the moisture content in slurry for wet process?

A. 35-50%

B. 0.12

C. 40-45%

D. 1

35-50%

999 - What is the normal consistency for OPC?

A. 26 to 33%

B. 20 to 35%

C. 26 to 50%

D. 33 to 55%

26 to 33%

1000 - What is the normal time to get uniform mixing?

A. 30 seconds

B. 2 or more minutes

C. 1 minutes

D. 24 hours

2 or more minutes

1001 - What is the percentage of accelerator by weight in UHPC?

A. 28.5

B. 4.4

C. 1.2

D. 6.2

1.2

1002 - What is the percentage of air by volume in Air Entraining Cement?

A. 44989

B. 45210

C. 45115

D. 9

44989

1003 - What is the percentage of bulk if fine aggregates manufactured by extremely fine sand?

A. 20

B. 30

C. 40

D. 50

1004 - What is the percentage of cement produced in dry process?

A. 0.85

B. 0.7

C. 0.75

D. 0.8

0.75

1005 - What is the percentage of CLINKER in PC?

A. 2-3%

B. 4-6%

C. 2-6%

D. 3-5%

2-6%

1006 - What is the percentage of iron oxide in white cement?

A. High

B. Very high

C. Medium

D. Very low

Very low

1007 - What is the percentage of PC by weight in UHPC?

A. 28.5

B. 4.4

C. 1.2

D. 6.2

28.5

1008 - What is the percentage of steel fibre by weight in UHPC?

A. 28.5

B. 4.4

C. 1.2

D. 6.2

6.2

1009 - What is the percentage of water by weight in UHPC?

A. 28.5

B. 4.4

C. 1.2

D. 6.2

4.4

1010 - What is the permissible limits for construction of chlorides in water for PCC work?

A. 200mg/l

B. 2000mg/l

C. 1000mg/l

D. 500mg/l

2000mg/l

1011 - What is the permissible limits for construction of chlorides in water for RCC work?

A. 200mg/l

B. 2000mg/l

C. 1000mg/l

D. 500mg/l

1000mg/l

1012 - What is the permissible limits for construction of inorganic matter in water.

A. 200mg/l

B. 2000mg/l

C. 3000mg/l

D. 500mg/l

3000mg/l

1013 - What is the permissible limits for construction of organic matter in water.

A. 200mg/l

B. 2000mg/l

C. 3000mg/l

D. 500mg/l

200mg/l

1014 - What is the permissible limits for construction of sulphates in water?

A. 200mg/l

B. 2000mg/l

C. 1000mg/l

D. 500mg/l

500mg/l

1015 - What is the permissible limits for construction of suspended matter in water.

A. 200mg/l

B. 2000mg/l

C. 3000mg/l

D. 500mg/l

2000mg/l

1016 - What is the range of CaCO3 in Argillocalcareous Rocks?

A. >75%

B. 40-75%

C. <45%

D. 0.75

40-75%

1017 - What is the range of contraction for this concrete in mm/m?

A. .5-1

B. 0.6

C. <1

D. >1

.5-1

1018 - What is the range of water absorption of aggregates used in road?

A. 2.5-2.9

B. .1-2

C. .1-2.5

D. 2-2.9

.1-2

1019 - What is the range of water absorption of aggregates used in road?

A. 2.5-2.9

B. .1-2

C. .1-2.5

D. 2-2.9

.1-2

1020 - What is the range of water absorption of aggregates used in road?

A. 2.5-2.9

B. .1-2

C. .1-2.5

D. 2-2.9

.1-2

1021 - What is the range of water absorption of aggregates used in road?

A. 2.5-2.9

B. .1-2

C. .1-2.5

D. 2-2.9

.1-2

1022 - What is the range of water in M10?

A. 34-36L

B. 29-32L

C. 26-30L

D. 21-27L

34-36L

1023 - What is the range of water in M15?

A. 34-36L

B. 29-32L

C. 26-30L

D. 21-27L

29-32L

1024 - What is the range of water in M20?

A. 34-36L

B. 29-32L

C. 26-30L

D. 21-27L

26-30L

1025 - What is the range of water in M25?

A. 34-36L

B. 29-32L

C. 26-30L

D. 21-27L

21-27L

1026 - What is the size of caliper?

A. 30cm

B. 50cm

C. 30mm

D. 40mm

30cm

1027 - What is the size of coarse aggregates?

A. 4.75mm

B. < 4.75mm

C. > 4.75mm

D. 12mm

> 4.75mm

1028 - What is the size of fine aggregates?

A. 4.75mm

B. < 4.75mm

C. > 4.75mm

D. 12mm

< 4.75mm

1029 - What is the standard value of expansion for super sulphated cement?

A. 10mm

B. 5mm

C. 1mm

D. .5mm

5mm

1030 - What is the thickness of the flat sheet fibers after silting in mm?

A. .3-.5

B. 0.25

C. .15-.41

D. .25-.90

.15-.41

1031 - What is the thickness of the steel fiber after silting in mm?

A. .3-.5

B. 0.25

C. .155-.41

D. .25-.90

0.25

1032 - What is the time required to give heating to remove the moisture from the concrete?

A. 6-8 hrs

B. 10 hrs

C. 24 hrs

D. 48 hrs

6-8 hrs

1033 - What is the total percentage of aggregates in concrete by volume?

A. 50-60%

B. 60-75%

C. 0.85

D. 0.5

60-75%

1034 - What is the value of modulus of elasticity for Sulphur infiltered concrete?

A. 60-115 MPa

B. 10-16 MPa

C. 35-50 GPa

D. 500 GPa

35-50 GPa

1035 - What is the value of modulus of elasticity?

A. 60-115 MPa

B. 10-16 MPa

C. 35-50 GPa

D. 500 GPa

35-50 GPa

1036 - What is the Vee-Bee time for medium degree of workability?

A. 10-20 sec

B. 5-10 sec

C. 2-5 sec

D. 35 sec

2-5 sec

1037 - What is the Vee-Bee time for medium degree of workability?

A. 10-20 sec

B. 5-10 sec

C. 2-5 sec

D. 35 sec

2-5 sec

1038 - What is the width of the flat sheet fibers after silting in mm?

A. .3-.5

B. 0.25

C. .15-.41

D. .25-.90

.25-.90

1039 - What is void ratio?

A. 1- (bulk density/apparent sp gr)

B. (bulk density/apparent sp gr) -1

C. 1- bulk density/apparent sp gr

D. bulk density/apparent sp gr -1

1- (bulk density/apparent sp gr)

1040 - What is water proofing admixtures?

A. Water repellent materials

B. Water fair material

C. Water absorption material

D. Water adsorption material

Water repellent materials

1041 - What is wet process?

A. Grinding and mixing of the raw materials in their dry state

B. Grinding and mixing of the raw materials in their medium state

C. Grinding and mixing of the raw materials in their wet state

D. Grinding and mixing of the raw materials in their overheated state

Grinding and mixing of the raw materials in their wet state

1042 - What is workability?

A. When it is easily placed and compacted heterogeneous

B. When it is easily placed and compacted homogenous

C. When it is not easily placed

D. When it is easily placed but not compacted homogenous

When it is easily placed and compacted homogenous

1043 - What should be the minimum water cement ratio?

A. 0.45

B. 0.5

C. <.45

D. >.45

<.45

1044 - What unit is present with the 240?

A. Pa

B. MPa

C. GPa

D. KPa

MPa

1045 - When concrete is loaded it experiences a large strain upon loading known as

A. Differential elastic strain

B. Instantaneous elastic strain

C. Differential inelastic strain

D. Instantaneous inelastic strain

Instantaneous elastic strain

1046 - When concrete is to be laid under water, ____ is to used.

A. Rapid Hardening Cement

B. Ordinary Portland Cement

C. Quick Setting Cement

D. Low Heat Cement

Quick Setting Cement

1047 - When sand is fully dry then it’s volume is _____

A. Equal

B. Less

C. More

D. Can’t say

Equal

1048 - When sand is fully dry then it’s volume is ____________

A. Equal

B. Less

C. More

D. Can’t say

Equal

1049 - When shear stress exceeds the permissible limit in a slab, then it is reduced by____________?

A. increasing the depth

B. providing shear reinforcement

C. using high strength steel

D. using thinner bars but more in number

increasing the depth

1050 - When the ____________ content is low, most ettringite will be formed in the plastic state.

A. C3SS

B. C3AA

C. C2S

D. C4AF

C3AA

1051 - When the ____________ content is low, most ettringite will be formed in the plastic state.

A. C3SS

B. C3AA

C. C2S

D. C4AF

C3AA

1052 - When the cement paste is filled in mould and kept in water. Then what should be the temperature of water?

A. 24-35°C

B. 20°C

C. 30-40°C

D. 50°C

24-35°C

1053 - When the cement paste is tested within the gauging time. Here what is the value of gauging time?

A. 3 to 5 minutes

B. 3 to 5 hours

C. 24 minutes

D. 24 hours

3 to 5 minutes

1054 - When the cement paste is tested within the gauging time. Here what is the value of gauging time?

A. 3 to 5 minutes

B. 3 to 5 hours

C. 24 minutes

D. 24 hours

3 to 5 minutes

1055 - When the concrete in fresh stage is exposed to freeze before certain pre-hardening period, compressive strength may get

A. Increased to 50%

B. Decreased to 50%

C. Increased to 25%

D. Decreased to 25%

Decreased to 50%

1056 - When the degree of saturation is zero, the soil mass under consideration represents______________?

A. one phase system

B. two phase system with soil and air

C. two phase system with soil and water

D. three phase system

two phase system with soil and air

1057 - When the motion of the particles of a medium are at right angles to the direction of wave motion, the wave being transmitted is called a ___________

A. Longitudinal wave

B. Shear wave

C. Surface wave

D. Lamb wave

Longitudinal wave

1058 - When vibrators are used for compaction, the consistency of concrete depends upon the ___________

A. Type of mix

B. Efficiency of vibrator

C. Placing conditions

D. Type of mix, efficiency of vibrator, pacing conditions

Type of mix, efficiency of vibrator, pacing conditions

1059 - Where do we use plasticizers?

A. Where low degree of workability is required

B. Where medium degree of workability is required

C. Where high degree of workability is required

D. Where very low degree of workability is required

Where high degree of workability is required

1060 - Where do we use plasticizers?

A. Where low degree of workability is required

B. Where medium degree of workability is required

C. Where high degree of workability is required

D. Where very low degree of workability is required

Where high degree of workability is required

1061 - Which aggregates have high shrinkage?

A. Grave

B. Sand stone

C. Quartz

D. Granite

Sand stone

1062 - Which aggregates have low shrinkage?

A. Grave

B. Sand stone

C. Quartz

D. Granite

Quartz

1063 - Which among the following is not a type of Non-destructive testing?

A. Compression test

B. Visual testing

C. Ultrasonic testing

D. Eddy current testing

Compression test

1064 - Which among the following is not a type of Non-destructive testing?

A. Compression test

B. Visual testing

C. Ultrasonic testing

D. Eddy current testing

Compression test

1065 - Which among the following is the last step in magnetic particle test method?

A. Observation and inspection

B. Circular magnetization

C. Demagnetization

D. Magnetization

Demagnetization

1066 - Which among the following is the last step in magnetic particle test method?

A. Observation and inspection

B. Circular magnetization

C. Demagnetization

D. Magnetization

Demagnetization

1067 - Which apparatus is generally used to measure the soundness of the cement?

A. Vicat Apparatus

B. Le-Chatelier apparatus

C. Soundness meter

D. Duff Abrams apparatus

Le-Chatelier apparatus

1068 - Which apparatus we don’t need to calculate the bulking of fine aggregates?

A. Measuring cylinder

B. Weighing balance

C. Steel rule

D. Vicat’s mould

Vicat’s mould

1069 - Which apparatus we need to find soundness?

A. Le Chatelier

B. Vicat’s apparatus

C. CTM

D. Pat test

Le Chatelier

1070 - Which can be the possible option for cracking in the building?

A. Due to light load

B. Low w/c ratio

C. Temperature difference

D. Gain of water

Temperature difference

1071 - Which cement contains high percentage of C3S and less percentage of C2S?

A. Rapid Hardening Cement

B. Ordinary Portland Cement

C. Quick Setting Cement

D. Low Heat Cement

Rapid Hardening Cement

1072 - Which cement is mainly used for interior and exterior decorative works?

A. Rapid Hardening Cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Colored Cement

1073 - Which cement is mainly used for interior and exterior decorative works?

A. Rapid Hardening Cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Colored Cement

1074 - Which cement is mainly used for interior and exterior decorative works?

A. Rapid Hardening Cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Colored Cement

1075 - Which cement is used for artificial marble?

A. Rapid Hardening Cement

B. Sulphate Resisting Cement

C. Coloured Cement

D. Quick Setting Cement

Coloured Cement

1076 - Which cement is used for artificial marble?

A. Rapid Hardening Cement

B. Sulphate Resisting Cement

C. Coloured Cement

D. Quick Setting Cement

Coloured Cement

1077 - Which cement is used for artificial marble?

A. Rapid Hardening Cement

B. Sulphate Resisting Cement

C. Coloured Cement

D. Quick Setting Cement

Coloured Cement

1078 - Which cement is used for mainly building construction where strength required with age?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Portland Pozzolana Cement

D. Quick Setting Cement

Portland Pozzolana Cement

1079 - Which cement is used for mainly building construction where strength required with age?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Portland Pozzolana Cement

D. Quick Setting Cement

Portland Pozzolana Cement

1080 - Which cement is used for mainly building construction where strength required with age?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Portland Pozzolana Cement

D. Quick Setting Cement

Portland Pozzolana Cement

1081 - Which cement is used for the construction of water-retaining structure like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc?

A. Waterproof Portland Cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Waterproof Portland Cement

1082 - Which cement is used for the construction of water-retaining structure like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc?

A. Waterproof Portland Cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Waterproof Portland Cement

1083 - Which cement is used for the construction of water-retaining structure like tanks, reservoirs, retaining walls, swimming pools, dams, bridges, piers etc?

A. Waterproof Portland cement

B. Colored Cement

C. High Alumina Cement

D. Low Heat Cement

Waterproof Portland cement

1084 - Which cement is used for works economic where considerations is predominant?Reservoirs, retaining walls, swimming pools, dams, bridges, piers etc.?

A. Waterproof Portland Cement

B. Colored Cement

C. High Alumina Cement

D. Blast Furnace Slag Cement

Blast Furnace Slag Cement

1085 - Which cement is used for works economic where considerations is predominant?Reservoirs, retaining walls, swimming pools, dams, bridges, piers etc.?

A. Waterproof Portland Cement

B. Colored Cement

C. High Alumina Cement

D. Blast Furnace Slag Cement

Blast Furnace Slag Cement

1086 - Which cement is used in sewage and water treatment plants?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Sulphate Resisting Cement

D. Quick Setting Cement

Sulphate Resisting Cement

1087 - Which cement is used in sewage and water treatment plants?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Sulphate Resisting Cement

D. Quick Setting Cement

Sulphate Resisting Cement

1088 - Which cement is used in sewage and water treatment plants?

A. Rapid Hardening Cement

B. Low Heat Cement

C. Sulphate Resisting Cement

D. Quick Setting Cement

Sulphate Resisting Cement

1089 - Which cement is used to create bond with old concrete surface?

A. Rapid Hardening Cement

B. Expansive Cement

C. Sulphate Resisting Cement

D. Low Heat Cement

Expansive Cement

1090 - Which cement is used to create bond with old concrete surface?

A. Rapid Hardening Cement

B. Expansive Cement

C. Sulphate Resisting Cement

D. Low Heat Cement

Expansive Cement

1091 - Which cement is used to create bond with old concrete surface?

A. Rapid Hardening Cement

B. Expansive Cement

C. Sulphate Resisting Cement

D. Low Heat Cement

Expansive Cement

1092 - Which cement is used to store for longer duration in wet climatic conditions?

A. Expansive Cement

B. Ordinary Portland cement

C. Hydrophobic Cement

D. Quick Setting Cement

Hydrophobic Cement

1093 - Which cement is used to stored for longer duration in wet climatic conditions?

A. Expansive Cement

B. Ordinary Portland Cement

C. Hydrophobic Cement

D. Quick Setting Cement

Hydrophobic Cement

1094 - Which cement is used to stored for longer duration in wet climatic conditions?

A. Expansive Cement

B. Ordinary Portland Cement

C. Hydrophobic Cement

D. Quick Setting Cement

Hydrophobic Cement

1095 - Which cement used in frost resistance concrete?

A. OPC

B. PPC

C. AEC

D. QSC

AEC

1096 - Which cement used in frost resistance concrete?

A. OPC

B. PPC

C. AEC

D. QSC

AEC

1097 - Which cement used in frost resistance concrete?

A. OPC

B. PPC

C. AEC

D. QSC

AEC

1098 - Which chemical compostion has highest content in OPC?

A. Alumina

B. Silica

C. Lime

D. Iron Oxide

Lime

1099 - Which chemical compostion has highest content in OPC?

A. Alumina

B. Silica

C. Lime

D. Iron Oxide

Lime

1100 - Which compound gives the colour to the cement?

A. Lime

B. Silica

C. Iron Oxide

D. Alumina

Iron Oxide

1101 - Which compound is liberates higher heat?

A. C2S

B. C3S

C. C3A

D. C4AF

C3S

1102 - Which compound is liberates higher heat?

A. C2S

B. C3S

C. C3A

D. C4AF

C3S

1103 - Which compound is liberates lower heat?

A. C2S

B. C3S

C. C3A

D. C4AF

C2S

1104 - Which compound is liberates lower heat?

A. C2S

B. C3S

C. C3A

D. C4AF

C2S

1105 - Which compound may lead to a rapid stiffening of the paste with a large amount of the heat generation?

A. C2S

B. C3S

C. C3A

D. C4AF

C3A

1106 - Which compound may lead to a rapid stiffening of the paste with a large amount of the heat generation?

A. C2S

B. C3S

C. C3A

D. C4AF

C3A

1107 - Which machine is preferred for abrasion test?

A. Vicat’s mould

B. Los Angeles

C. Flakiness Gauge

D. Elongation Gauge

Los Angeles

1108 - Which machine is preferred for abrasion test?

A. Vicat’s mould

B. Los Angeles

C. Flakiness Gauge

D. Elongation Gauge

Los Angeles

1109 - Which machine is preferred for abrasion test?

A. Vicat’s mould

B. Los Angeles

C. Flakiness Gauge

D. Elongation Gauge

Los Angeles

1110 - Which method is the most common and cheaper for water curing?

A. Ponding

B. Sprinkling

C. Mist curing

D. Wet covering

Ponding

1111 - Which of the following compound is used for fine polishing?

A. Aluminum oxide

B. Nitric oxide

C. Silicon carbide

D. Iron oxide

Aluminum oxide

1112 - Which of the following compound is used for fine polishing?

A. Aluminum oxide

B. Nitric oxide

C. Silicon carbide

D. Iron oxide

Aluminum oxide

1113 - Which of the following has high tensile strength ?

A. plain hot rolled wires

B. cold drawn wires

C. heat treated rolled wires

D. all have same tensile strength

cold drawn wires

1114 - Which of the following is correct for Low Heat Cement?

A. Suitable for use in cold weather areas

B. Heat of hydration is reduced by tri calcium aluminate content

C. This cement requires longer period of curing

D. This cement contains high aluminate %age usually between 35-55%.

Heat of hydration is reduced by tri calcium aluminate content

1115 - Which of the following is the advantages of this concrete?

A. Low density

B. Low strength

C. It can’t be use in RCC structure

D. Cannot be measured by any available standard methods

Low density

1116 - Which of the following is the disadvantages of this concrete?

A. Lightweight

B. Low strength

C. Low shrinkage

D. Good thermal insulating property

Low strength

1117 - Which of the following losses of prestress occurs only in pretensioning and not in post-tensioning ?

A. elastic shortening of concrete

B. shrinkage of concrete

C. creep of concrete

D. loss due to friction

elastic shortening of concrete

1118 - Which of the following option doesn’t come in chemical admixtures?

A. Plasticizers

B. Pozzolanic

C. Super plasticizer

D. Accelerators

Pozzolanic

1119 - Which of the following option doesn’t come in mineral admixtures?

A. Set retarders

B. Blast Furnace Slag

C. Flyash

D. Silica Fume

Set retarders

1120 - Which of the following option is correct?

A. Standard consistency (%) = (wt of water added/ wt of cement) *100

B. Standard consistency (%) = (wt of water added- wt of cement) *100

C. Standard consistency = (wt of water added/ wt of cement) *100

D. Standard consistency (%) = (wt cement/ wt of water) *100

Standard consistency (%) = (wt of water added/ wt of cement) *100

1121 - Which of the following statement is correct while compacting concrete with vibrators?

A. The vibrator should be inserted horizontally

B. The vibrator should not be immersed through a full depth of freshly laid concrete

C. The vibrator should not touch the form surface

D. The vibrator should touch the form surface

The vibrator should not touch the form surface

1122 - Which of the following statement is incorrect about the function of admixtures.

A. To accelerate the initial set of concrete, to speed up the rate of development of strength at early ages

B. To enhance the workability

C. To reduce the segregation in grout and concrete mixers

D. To retard the initial set, to keep concrete workable for a shorter time for placement

To retard the initial set, to keep concrete workable for a shorter time for placement

1123 - Which of the following statement is incorrect about the function of admixtures.

A. To increase the strength of concrete by reducing the water content and by densification of concrete

B. To increase the durability of concrete to enhance its resistance to special conditions of exposure

C. To increase the capillary flow of water through concrete and to increase its impermeability to liquids

D. To control the alkali-aggregate expansion or alkali silica reaction

To increase the capillary flow of water through concrete and to increase its impermeability to liquids

1124 - Which of the following statement is incorrect for mixing water,

A. Suspended particles of clay and slit < .02%

B. The quality of CaCl2 is restricted to 1.5%

C. The pH value of water should be between 6-8

D. Free vegetable oil is beneficial

Free vegetable oil is beneficial

1125 - Which of the following statement is incorrect for mixing water,

A. Suspended particles of clay and slit < .02%

B. The quality of CaCl2 is restricted to 1.5%

C. The pH value of water should be between 6-8

D. Free vegetable oil is beneficial

Free vegetable oil is beneficial

1126 - Which of the following statement is incorrect?

A. Water is the most important and least expensive ingredient of concrete

B. Excess of water forms scum

C. Less amount of water may cause honeycombing

D. Mixing of water is used in the hydration of cement and provides lubrication between fine and coarse aggregates.

Less amount of water may cause honeycombing

1127 - Which of the following statements is incorrect ?

A. Minimum cross sectional area of longitudinal reinforcement in a column is 0.8%

B. Spacing of longitudinal bars measured along the periphery of column should not exceed 300 mm

C. Reinforcing bars in a column should not be less than 12 mm in diameter

D. The number of longitudinal bars provided in a circular column should not be less than four

The number of longitudinal bars provided in a circular column should not be less than four

1128 - Which of the following statements is/are true for ultrasonic test?

A. Equipment used for ultrasonic testing is portable

B. Complicated shapes can be easily scanned

C. Waves generated are health hazardous

D. Waves generated are health hazardous and complicated shapes can be easily scanned

Equipment used for ultrasonic testing is portable

1129 - Which of the following statements is/are true for ultrasonic test?

A. Equipment used for ultrasonic testing is portable

B. Complicated shapes can be easily scanned

C. Waves generated are health hazardous

D. Waves generated are health hazardous and complicated shapes can be easily scanned

Equipment used for ultrasonic testing is portable

1130 - Which of the following types of soil is transported by gravitational forces ?

A. loess

B. talus

C. drift

D. dune sand

talus

1131 - Which one can’t be the reason for the shrinkage of concrete?

A. W/c ratio

B. Temperature

C. Cement content

D. Formwork

Formwork

1132 - Which one doesn’t comes under Calcareous Rocks?

A. Limestone

B. Cement rock

C. Chalk

D. Marine shell deposits

Cement rock

1133 - Which one is an anionic surfactants?

A. Polyglycol esters

B. Hydroxylated carboxylic acids

C. Lignosulphonates

D. Carbohydrates

Lignosulphonates

1134 - Which one is an anionic surfactants?

A. Polyglycol esters

B. Hydroxylated carboxylic acids

C. Lignosulphonates

D. Carbohydrates

Lignosulphonates

1135 - Which one is not a chemically active pore filling material?

A. Silicate of soda

B. Aluminium

C. Chalk

D. Zinc

Chalk

1136 - Which one is not a chemically inactive pore filling material?

A. Aluminium

B. Chalk

C. Talc

D. Fullers earth

Aluminium

1137 - Which one is not chemical admixtures?

A. Accelerators

B. Retarders

C. Water-reducing agents

D. Silica fume

Silica fume

1138 - Which one is not chemical admixtures?

A. Accelerators

B. Retarders

C. Water-reducing agents

D. Silica fume

Silica fume

1139 - Which one is not the part of chemical and mineral admixtures?

A. Curing compounds

B. GGBFS

C. Metakaoline

D. Pumicites

Curing compounds

1140 - Which one is not the polymeric resin?

A. Polyester resin

B. Epoxy resin

C. Vinyl ester resin

D. Sulphates

Sulphates

1141 - Which one is not used as air entraining agents?

A. Alumina

B. Natural resins

C. Fats

D. Oil

Alumina

1142 - Which temperature avoids flammability?

A. 35

B. 120-150

C. 100

D. 60-150

1143 - Which test can be performed without skilled labor?

A. Probe test

B. Bend liquid test

C. Dye penetrant test

D. Torsion test

Dye penetrant test

1144 - Which test can be performed without skilled labor?

A. Probe test

B. Bend liquid test

C. Dye penetrant test

D. Torsion test

Dye penetrant test

1145 - Which test can be performed without skilled labour?

A. Probe test

B. Bend liquid test

C. Dye penetrant test

D. Torsion test

Dye penetrant test

1146 - Which test can be performed without skilled labour?

A. Probe test

B. Bend liquid test

C. Dye penetrant test

D. Torsion test

Dye penetrant test

1147 - Which test can be performed without skilled labour?

A. Probe test

B. Bend liquid test

C. Dye penetrant test

D. Torsion test

Dye penetrant test

1148 - Which test gives good results for rich mixes?

A. Slump test

B. Compacting factor test

C. Flow table test

D. VeBe test

Slump test

1149 - Which test is used to determine dimensions of any object?

A. Ultrasonic test

B. Torsion test

C. Eddy current test

D. Compression test

Eddy current test

1150 - Which test is used to determine dimensions of any object?

A. Ultrasonic test

B. Torsion test

C. Eddy current test

D. Compression test

Eddy current test

1151 - Which test is used to determine dimensions of any object?

A. Ultrasonic test

B. Torsion test

C. Eddy current test

D. Compression test

Eddy current test

1152 - Which test is used to determine dimensions of any object?

A. Ultrasonic test

B. Torsion test

C. Eddy current test

D. Compression test

Eddy current test

1153 - Which test used for fiber reinforced concrete?

A. Slump test

B. Compacting factor test

C. Flow table test

D. VeBe test

VeBe test

1154 - Which test Used for high workable concretes?

A. Slump test

B. Compacting factor test

C. Flow table test

D. VeBe test

Flow table test

1155 - Which test used for low workable concretes?

A. Slump test

B. Compacting factor test

C. Flow table test

D. VeBe test

Compacting factor test

1156 - Which type of aggregates are used to produce 70MPa compressive strength?

A. All in one

B. Fine

C. Coarse

D. Flaky

Coarse

1157 - Which type of aggregates are used to produce 70MPa compressive strength?

A. All in one

B. Fine

C. Coarse

D. Flaky

Coarse

1158 - While compacting the concrete by a mechanical vibrator, the slump should not exceed

A. 2.5 cm

B. 5.0 cm

C. 7.5 cm

D. 10 cm

5.0 cm

1159 - While designing an air entrained concrete

A. water cement ratio is reduced

B. proportion of aggregates is reduced

C. an allowance for the entrained air is made

D. all the above.

all the above.

1160 - Who has established the relation between the strength and gel/space ratio?

A. Abrams

B. Power

C. Brownyard

D. Power and Brownyard

Power and Brownyard

1161 - Why do we need Standard Consistency Test?

A. To determine the quality of cement

B. To determine the quality of water

C. To determine the quality of mixed concrete

D. To determine the strength of concrete block

To determine the quality of water

1162 - Why do we need to find soundness?

A. To detect the uncombined lime in cement

B. To detect the combined lime in cement

C. To detect the combined alumina in cement

D. To detect the uncombined alumina in cement

To detect the uncombined lime in cement

1163 - Why Shape and texture of aggregates is must?

A. Smooth surfaces give better workability

B. Smooth surfaces give poor workability

C. Rough surfaces give better workability

D. Rough surfaces give poor workability

Smooth surfaces give better workability

1164 - Why the time period for removal of form work has to be increased.

A. The development of strength of concrete is retarded compared with development at normal temperature

B. The development of strength of concrete is accelerate compared with development at normal temperature

C. The development of strength of concrete is advanced compared with development at normal temperature

D. The development of strength of concrete is precocious compared with development at normal temperature

The development of strength of concrete is retarded compared with development at normal temperature

1165 - With regard to the curing water, identify the incorrect statement.

A. Curing water shouldn’t produce objectionable stains on the surface

B. The presence of tannic acid and iron compounds is objectionable

C. Iron and organic matter are responsible for staining

D. Water is suitable for mixing is also suitable for curing

Iron and organic matter are responsible for staining

1166 - With regard to the curing water, identify the incorrect statement.

A. Curing water shouldn’t produce objectionable stains on the surface

B. The presence of tannic acid and iron compounds is objectionable

C. Iron and organic matter are responsible for staining

D. Water is suitable for mixing is also suitable for curing

Iron and organic matter are responsible for staining

1167 - Workability can be resolved __________

A. With not using of plasticizers

B. With use of plasticizers

C. With the use of both plasticizers and super plasticizers

D. With not using of both plasticizers and super plasticizers

With the use of both plasticizers and super plasticizers

1168 - Workability improved by adding

A. air-entraining agent

B. foaming agent

C. oily-agent

D. all the above.

all the above.

1169 - Workability improved by adding

A. fly ash

B. hydrated lime

C. calcium chloride

D. all the above.

all the above.

1170 - Workability of concrete can be improved by

A. More sand

B. More cement

C. More fine aggregates

D. Fineness of coarse aggregate

More cement

1171 - Workability of concrete can be improved by ___________

A. Increasing size of aggregates

B. Decreasing size of aggregates

C. Increasing fine aggregates

D. Increasing flaky aggregates

Increasing size of aggregates

1172 - Workability of concrete can be improved by addition

A. Iron

B. Sodium

C. Zinc

D. Sulphur

Zinc

1173 - Workability of concrete for a given water content is good if the aggregates, are

A. rounded aggregate

B. irregular aggregate

C. angular aggregate

D. flaky aggregates.

rounded aggregate

1174 - Workability of concrete is directly proportional to

A. Grading of the aggregates

B. Time of transit

C. Aggregates cement ratio

D. Water cement ratio

Grading of the aggregates

1175 - Workability of concrete is inversely proportional to

A. Grading of the aggregates

B. Time of transit

C. Aggregates cement ratio

D. Water cement ratio

Water cement ratio

1176 - Workability of concrete is measured by

A. Vicat apparatus test

B. Slump test

C. Minimum void method

D. Talbot Richard test.

Slump test

1177 - Workability of concrete is measured by:

A. Vicat apparatus test

B. Slump test

C. Minimum void method

D. Talbot Richard test

Slump test

1178 - Workability of concrete mix with low water cement ratio is determined by

A. tensile strength test

B. slump test

C. compaction factor test

D. flexural strength test

compaction factor test

1179 - You are asked to construct a massive dam, the type of cement you will use, is

A. ordinary Portland cement

B. rapid hardening cement

C. low heat cement

D. blast furnace slag cement

low heat cement

1180 - Young’s modulus for dickite is ___________

A. 5.2 GPa

B. 6.2 GPa

C. 7.2 GPa

D. 8.2 GPa

6.2 GPa

Pages

Subject Wise MCQs

Post Wise MCQs

Past Papers

Pages

Concrete Technology Most Important MCQs Part: 3

801 - The removal of excess air after placing concrete helps in increasing the strength of concrete by ___________

802 - The risk of segregation is more for

803 - The rock which is not calcareous, is :

804 - The separation of water or water-cement mixture from the freshly mixed concrete is known as bleeding.

805 - The shrinkage of concrete

806 - The shuttering of a hall measuring 4 m x 5 m, can be removed after

807 - The size of fine aggregates does not exceed

808 - The slab is designed as one way if the ratio of long span to short span is_____________?

809 - The slump would not exceed 50 mm when compacting concrete with vibrators.

810 - The slurry with the desired lime content passes into the _____

811 - The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and ___ is liberated.

812 - The sound absorption coefficient of light weight concrete is nearly __________

813 - The specific heat of the aggregates is _____________

814 - The specific surface (m2/kg) of silica fume.

815 - The specifications of a cement bag for storage, are

816 - The standard sand now a days used in India, is obtained from

817 - The standard sand now a days used in India, is obtained from

818 - The strength and quality of concrete, depend upon:

819 - The strength of the resulting concrete is _______ % lower than when dry aggregate is used for the same content.

820 - The surface where two successive placements of concrete meet, is known as

821 - The tensile properties of a low-pressure plasma-deposited nickel-base superalloy from ____________

822 - The thermal conductivity of the aggregates is ______________

823 - The tolerances on the cross-section of the test specimens shall be within ± ___________

824 - The tolerances on the cross-section of the test specimens shall be within ± ____________

825 - The top diameter, bottom diameter and the height of a slump mould are :

826 - The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is

827 - The type of aggregates of same nominal size, which contain less voids when compacted, are

828 - The unit weight of heavy weight concrete varies from __________ kg/m3.

829 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

830 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

831 - The use of crushed aggregates may results in 10 to 20% higher compressive strength. Is this statement true or false?

832 - The vegetable oil if present in mixing for concrete

833 - The void ratio of

834 - The w/c ratio is kept in the range of _______

835 - The water–cement ratio is the ratio of ___

836 - Theoretical value for bulk modulus of clay __________

837 - This cement content should ________ the cement content required based on durability criteria.

838 - This strain increases over time due to _________

839 - This type of concrete possesses __________

840 - To avoid trapped air produced by clay flocculation, we used ___ in distilled water.

841 - To determine the fineness of cement ____

842 - To determine the fineness of cement by dry sieving as per IS: 4031 (Part 1) – 1996.The principle of this is that we determine the proportion of cement whose grain size is larger than specified mesh size.

843 - To determine the modulus of rupture, the size of test specimen used is_______________?

844 - To ensure constant moisture content in aggregates

845 - To hydrate 500kg of cement full water needed, is

846 - To measure the concrete temperature, the stem of the thermometer must be kept by at least ___ inches of concrete.

847 - To minimise the effect of differential settlement, the area of a footing should be designed for______________?

848 - To neutralize 200 ml of sample should not require more than 10 ml of __ normal HCI using methyl orange.

849 - To neutralize 200 ml of sample should not require more than 10 ml of __________ normal HCI using methyl orange.

850 - To neutralize 200 ml sample of water should not require more than _________ ml of 0.1 normal NaOH.

851 - To obtain a very high strength concrete, use very fine grained

852 - To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between

853 - To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between ___

854 - To prevent segregation, the maximum height for placing concrete, is

855 - Too wet concrete may cause

856 - Transport of concrete by pumps, is done for a distance of

857 - Ultimate strength of cold drawn high steel wires_______________?

858 - Ultra-High Performance Concrete (UHPC), also known as ______

859 - Under normal conditions using an ordinary cement, the period of removal of the form work, is :

860 - Use of HSC in column __________

861 - Use of HSC in column ___________

862 - Vacuum mixing systems reduce the exposure by _________ %.

863 - Valid range for n, the percentage voids, is______________?

864 - Valid range for S, the degree of saturation of soil in percentage is______________?

865 - Vicat apparatus is used for

866 - Vicat's apparatus is used for

867 - Voids ratio of a soil mass can_________________?

868 - Volumetric strain is equal to ___________ times the linear strain.

869 - 'Ware house pack' of cement means

870 - Water cement ratio is

871 - Water cement ratio is ______

872 - Water cement ratio is generally expressed in volume of water required per

873 - Water content of soil can______________?

874 - Water required per bag of cement, is

875 - Water-filled voids ranges from _______ % of the total volume of the component for dense concrete.