Modulus of elasticity of concrete is primarily influenced by [ A ] Elastic properties of aggregate [ B ] Curing of concrete [ C ] Age of concrete [ D ] Mix proportion and type of cement

Modulus of elasticity of concrete is primarily influenced by
[ A ] Elastic properties of aggregate
[ B ] Curing of concrete
[ C ] Age of concrete
[ D ] Mix proportion and type of cement
by

1 Answer

Answer :

[ A ] Elastic properties of aggregate
by

Related questions

Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is proportional to the age of the member at the time of loading. (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members

Description : Which one of the following statements is not correct with respect to PSC beams? (a) Loss due to shrinkage is proportional to water-cement ratio used in concrete (b) Loss due to creep is ... to the modulus of elasticity of concrete (d) Loss due to friction occurs in post tensioned concrete members

Last Answer : (c) Loss due to elastic deformation is directly proportionally to the modulus of elasticity of concrete

Modulus of elasticity of concrete is increased with (a) Higher W/C ratio (b) Shorter curing period (c) Lesser vibration (d) Increase in age

Description : Modulus of elasticity of concrete is increased with (a) Higher W/C ratio (b) Shorter curing period (c) Lesser vibration (d) Increase in age

Last Answer : (d) Increase in age

Strength of concrete increases with (A) Increase in water-cement ratio (B) Increase in fineness of cement (C) Decrease in curing time (D) Decrease in size of aggregate

Description : Strength of concrete increases with (A) Increase in water-cement ratio (B) Increase in fineness of cement (C) Decrease in curing time (D) Decrease in size of aggregate

Last Answer : (B) Increase in fineness of cement

Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C) Curing of concrete is done for proper compaction of cement (D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Description : Pick up the correct statement from the following: (A) Plain cement concrete is equally strong in compression as well as in tension (B) Slump test is performed to check concrete strength (C ... D) Fineness modulus is the index number expressing the relative sizes of both coarse and fine aggregates

Last Answer : Option D

C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Description : C.R.R.I. charts are used to obtain a relationship between strength of concrete and (A) Water cement ratio (B) Workability (C) Grading of aggregate (D) Fineness modulus

Last Answer : Answer: Option A

The workability of concrete is mostly influenced by its [ A ] Water cement ratio [ B ] Aggregate cement ratio [ C ] Cement content [ D ] Water content

Description : The workability of concrete is mostly influenced by its [ A ] Water cement ratio [ B ] Aggregate cement ratio [ C ] Cement content [ D ] Water content

Last Answer : [ A ] Water cement ratio

Strength of cement concrete primarily depends upon (A) Quality of water (B) Quantity of aggregate (C) Quantity of cement (D) Water-cement

Description : Strength of cement concrete primarily depends upon (A) Quality of water (B) Quantity of aggregate (C) Quantity of cement (D) Water-cement

Last Answer : Answer: Option D

Inert material of a cement concrete mix, is (A) Water (B) Cement (C) Aggregate (D) None of these

Description : Inert material of a cement concrete mix, is (A) Water (B) Cement (C) Aggregate (D) None of these

Last Answer : Answer: Option C

Workability of concrete is inversely proportional to (A) Time of transit (B) water-cement ratio (C) The air in the mix (D) Size of aggregate

Description : Workability of concrete is inversely proportional to (A) Time of transit (B) water-cement ratio (C) The air in the mix (D) Size of aggregate

Last Answer : Answer: Option A

The ratio of differenct ingredients (cement, sand and aggregate) in concrete mix of grade M20 is. (a) 1:1:2 (b) 1:1.5:2 (c) 1:2:4 (d) 1:3:6

Description : The ratio of differenct ingredients (cement, sand and aggregate) in concrete mix of grade M20 is. (a) 1:1:2 (b) 1:1.5:2 (c) 1:2:4 (d) 1:3:6

Last Answer : (b) 1:1.5:2

According to the rule of water cement ratio, the strength of concrete wholly depends upon. (a) The quality of cement. (b) The quality of cement mixed with aggregate. (c) The amount of water used in preparation of concrete mix. (d) All of the above

Description : According to the rule of water cement ratio, the strength of concrete wholly depends upon. (a) The quality of cement. (b) The quality of cement mixed with aggregate. (c) The amount of water used in preparation of concrete mix. (d) All of the above

Last Answer : (c) The amount of water used in preparation of concrete mix.

Inert material of a cement concrete mix, is [ A ] Water [ B ] Aggregate [ C ] Cement [ D ] None of these

Description : Inert material of a cement concrete mix, is [ A ] Water [ B ] Aggregate [ C ] Cement [ D ] None of these

Last Answer : [ B ] Aggregate

The factors which effects the design of concrete mix is (a) Fineness modulus (b) Water cement ratio (c) Slump (d) All of these

Description : The factors which effects the design of concrete mix is (a) Fineness modulus (b) Water cement ratio (c) Slump (d) All of these

Last Answer : (d) All of these

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known (A) Grading (B) Curing (C) Mixing (D) Batching

Description : The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known (A) Grading (B) Curing (C) Mixing (D) Batching

Last Answer : (D) Batching

The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known as [ A ] Curing [ B ] Mixing [ C ] Grading [ D ] Batching

Description : The process of proper and accurate measurement of concrete ingredients for uniformity of proportion, is known as [ A ] Curing [ B ] Mixing [ C ] Grading [ D ] Batching

Last Answer : [ D ] Batching

The ratio of shear stress and shear strain of an elastic material, is (A) Modulus of Rigidity (B) Shear Modulus (C) Modulus of Elasticity (D) Both (a) and (b)

Description : The ratio of shear stress and shear strain of an elastic material, is  (A) Modulus of Rigidity  (B) Shear Modulus  (C) Modulus of Elasticity  (D) Both (a) and (b) 

Last Answer : (D) Both (a) and (b) 

The risk of segregation is more for (A) Wetter mix (B) Larger proportion of maximum size aggregate (C) Coarser grading (D) All the above

Description : The risk of segregation is more for (A) Wetter mix (B) Larger proportion of maximum size aggregate (C) Coarser grading (D) All the above

Last Answer : Answer: Option D

The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Description : The process of consolidating concrete mix after placing it in position is termed as. (a) Curing (b) Wetting (c) Compaction (d) All of these

Last Answer : (c) Compaction

Consider the following statements: Percentage of steel for balanced designed of a singly reinforced rectangular section by limit state method depends on (1) Characteristic strength of concrete (2) Yield strength of concrete (3) Modulus of elasticity of steel (4) Geometry of the section. Which of these statements are correct? (a) 2, 3 and 4 (b) 1, 3 and 4 (c) 1, 2 and 4 (d) 1, 2 and 3

Description : Consider the following statements: Percentage of steel for balanced designed of a singly reinforced rectangular section by limit state method depends on (1) Characteristic strength of concrete (2) Yield strength of concrete (3) Modulus of elasticity ... (b) 1, 3 and 4 (c) 1, 2 and 4 (d) 1, 2 and 3

Last Answer : 1,2,4

Which of the following statements refer to correct purpose as regards testing of concrete by ultrasonic pulse velocity method? 1. To assess the quality of concrete in-situ. 2. To determine the dynamic modulus of elasticity of concrete. 3. To locate the presence of cracks in it (a) 1 and 2 only (b) 1 and 3 only (c) 2 and 3 only (d)1, 2 and 3

Description : Which of the following statements refer to correct purpose as regards testing of concrete by ultrasonic pulse velocity method? 1. To assess the quality of concrete in-situ. 2. To determine the dynamic modulus of elasticity of concrete. 3 ... and 2 only (b) 1 and 3 only (c) 2 and 3 only (d)1, 2 and 3

Last Answer : (d)1, 2 and 3

As per IS: 456-2000, modulus of elasticity of concrete (in N/mm2) is given by [ A ] 5700 vfCK [ B ] 5000 vfCK [ C ] 3700 vfCK [ D ] 3000 vfCK

Description : As per IS: 456-2000, modulus of elasticity of concrete (in N/mm2) is given by [ A ] 5700 vfCK [ B ] 5000 vfCK [ C ] 3700 vfCK [ D ] 3000 vfCK

Last Answer : [ B ] 5000 vfCK

For providing a raft foundation, the following activities are involved 1. Ramming the foundation bed 2. Excavation of the soil upto required depth 3. Laying the reinforcement over the foundation bed 4. Curing the cement concrete placed over reinforcement 5. Pouring the cement concrete over the reinforcement The correct sequence is (A) 1, 2, 3, 4, 5 (B) 5, 4, 3, 2, 1 (C) 2, 1, 3, 5, 4 (D) 3, 2, 5, 1,

Description : For providing a raft foundation, the following activities are involved 1. Ramming the foundation bed 2. Excavation of the soil upto required depth 3. Laying the reinforcement over the foundation bed 4. Curing the cement concrete placed over ... 2, 1 (C) 2, 1, 3, 5, 4 (D) 3, 2, 5, 1, 4

Last Answer : Answer: Option C

Blast furnace slag cement concrete requires ___________time for shuttering and curing. (a) Less (b) More (c) Medium (d) All the above

Description : Blast furnace slag cement concrete requires ___________time for shuttering and curing. (a) Less (b) More (c) Medium (d) All the above

Last Answer : (b) More

For Ordinary Portland cement concrete exposed to dry and hot weather conditions, good moist curing period is [ A ] 7 days [ B ] 10 days [ C ] 14 days [ D ] None of the above

Description : For Ordinary Portland cement concrete exposed to dry and hot weather conditions, good moist curing period is [ A ] 7 days [ B ] 10 days [ C ] 14 days [ D ] None of the above

Last Answer : [ B ] 10 days

For preparing a test-specimen, it is necessary (A) To mix cement and fine aggregate by dry hand (B) To mix coarse aggregates (C) To mix water to the cement, fine aggregates and coarse aggregates (D) All the above

Description : For preparing a test-specimen, it is necessary (A) To mix cement and fine aggregate by dry hand (B) To mix coarse aggregates (C) To mix water to the cement, fine aggregates and coarse aggregates (D) All the above

Last Answer : Answer: Option D

In order to prepare a test specimen, it is necessary to (a) Mix the cement and fine aggregate (sand ) dry hand (b) Mix the coarse aggregate (c) Mix water to the cement, fine aggregate and coarse aggregate (d) All of the above

Description : In order to prepare a test specimen, it is necessary to (a) Mix the cement and fine aggregate (sand ) dry hand (b) Mix the coarse aggregate (c) Mix water to the cement, fine aggregate and coarse aggregate (d) All of the above

Last Answer : (d) All of the above

The ductility of metal is usually expressed in terms of the: A. Yield strength (point where the material is not longer elastic) B. Percent elongation C. Modulus of elasticity (stiffness of the material)

Description : The ductility of metal is usually expressed in terms of the: A. Yield strength (point where the material is not longer elastic) B. Percent elongation C. Modulus of elasticity (stiffness of the material)

Last Answer : B. Percent elongation

A Gold clasp is more elastic than Cobalt Chrome, but Co-Chrome has high modulus of elasticity. A. The first statement is false the second is true B. Both are true C. The first is true the second is false D. Both are false

Description : A Gold clasp is more elastic than Cobalt Chrome, but Co-Chrome has high modulus of elasticity. A. The first statement is false the second is true B. Both are true C. The first is true the second is false D. Both are false

Last Answer : B. Both are true

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

Description : 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

Last Answer : (D) All the above

Curing (A) Reduces the shrinkage of concrete (B) Preserves the properties of concrete (C) Prevents the loss of water by evaporation (D) All of the above

Description : Curing (A) Reduces the shrinkage of concrete (B) Preserves the properties of concrete (C) Prevents the loss of water by evaporation (D) All of the above

Last Answer : (D) All of the above

The object of curing is to (a) Prevent the loss of water by evaporation. (b) Reduce the shrinkage of concrete (c) Preserve the properties of concrete (d) All of these

Description : The object of curing is to (a) Prevent the loss of water by evaporation. (b) Reduce the shrinkage of concrete (c) Preserve the properties of concrete (d) All of these

Last Answer : (d) All of these

For the construction of cement concrete floor, the maximum permissible size of aggregate, is (A) 4 mm (B) 6 mm (C) 8 mm (D) 10 mm

Description : For the construction of cement concrete floor, the maximum permissible size of aggregate, is (A) 4 mm (B) 6 mm (C) 8 mm (D) 10 mm

Last Answer : Answer: Option D

Workability of concrete is directly proportional to (A) Aggregate cement ratio (B) Time of transit (C) Grading of the aggregate (D) All of above

Description : Workability of concrete is directly proportional to (A) Aggregate cement ratio (B) Time of transit (C) Grading of the aggregate (D) All of above

Last Answer : Answer: Option C

The deleterious materials present in the aggregate (a) Prevent normal hydration of cement (b) Reduce the strength and durability of concrete. (c) Modify the setting action and cause efloresecence. (d) All of the above

Description : The deleterious materials present in the aggregate (a) Prevent normal hydration of cement (b) Reduce the strength and durability of concrete. (c) Modify the setting action and cause efloresecence. (d) All of the above

Last Answer : (d) All of the above

The material used as an ingredient of concrete is usually (a) Cement (b) Aggregate (c) Water (d) All the above

Description : The material used as an ingredient of concrete is usually (a) Cement (b) Aggregate (c) Water (d) All the above

Last Answer : (d) All the above

The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Description : The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary method of proportioning (A) 1 : 1 : 2 (B) 1 : 2 : 4 (C) 1 : 3 : 6 (D) 1 : 4 : 10

Last Answer : Answer: Option D

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

Description : 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

Last Answer : (D) All the above

Shrinkage of concrete is mostly influenced by [ A ] Environmental conditions [ B ] Size of member [ C ] Cement in concrete [ D ] The total amount of water present in concrete

Description : Shrinkage of concrete is mostly influenced by [ A ] Environmental conditions [ B ] Size of member [ C ] Cement in concrete [ D ] The total amount of water present in concrete

Last Answer : [ D ] The total amount of water present in concrete

Which of the following mechanical properties of a material is most structure insensitive? (A) Modulus of elasticity (young's modulus) (B) Toughness (C) Percentage reduction of area (D) Tensile strength

Description : Which of the following mechanical properties of a material is most structure insensitive? (A) Modulus of elasticity (young's modulus) (B) Toughness (C) Percentage reduction of area (D) Tensile strength

Last Answer : (A) Modulus of elasticity (young's modulus)

Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5(C) 7.0 (D) 7.5

Description : Minimum number of 50 kg cement bags per cubic metre of concrete for a mix corresponding to crushing strength 280 kg/cm2 at 28 days, are (A) 5.0 (B) 6.5 (C) 7.0 (D) 7.5

Last Answer : Answer: Option B

After casting, an ordinary cement concrete on drying (A) Expands (B) Mix (C) Shrinks (D) None of these

Description : After casting, an ordinary cement concrete on drying (A) Expands (B) Mix (C) Shrinks (D) None of these

Last Answer : (C) Shrinks

Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Description : Pick up the correct statement from the following: (A) The weight of ingredients of concrete mix, is taken in kilograms (B) Water and aggregates are measured in litres (C) 20 bags of cement make one tonne (D) All the above

Last Answer : Answer: Option D

According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

Description : According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D) All the above

Last Answer : Answer: Option D

If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg

Description : If 50 kg of fine aggregates and 100 kg of coarse aggregates are mixed in a concrete whose water cement ratio is 0.6, the weight of water required for harsh mix, is (A) 8 kg (B) 10 kg (C) 12 kg (D) 14 kg

Last Answer : Answer: Option C

Shrinkage in concrete can be reduced by using (A) Low water cement ratio (B) Less cement in the concrete (C) Proper concrete mix (D) All the above

Description : Shrinkage in concrete can be reduced by using (A) Low water cement ratio (B) Less cement in the concrete (C) Proper concrete mix (D) All the above

Last Answer : Answer: Option D

For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of water required per bag, is (A) 10 kg (B) 12 kg (C) 14 kg (D) 16 k

Description : For a concrete mix 1:3:6 and water cement ratio 0.6 both by weight, the quantity of water required per bag, is (A) 10 kg (B) 12 kg (C) 14 kg (D) 16 kg

Last Answer : Answer: Option C

Pick up the incorrect statement from the following. While performing preliminary test on concrete (A) Proportions of the material and water should be the same as to be used at the work site (B) Cement should be mixed by hand in order to maintain uniformity (C) Concrete mix should be stored in air-tight containers (D) Concrete ingredients should be kept at a temperature of 37° ± 2°C

Description : Pick up the incorrect statement from the following. While performing preliminary test on concrete (A) Proportions of the material and water should be the same as to be used at the work site (B) ... in air-tight containers (D) Concrete ingredients should be kept at a temperature of 37° 2°C

Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the concrete (C) The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Description : Pick up the correct statement from the following: (A) An increase in water content must be accompanied by an increase in cement content (B) Angular and rough aggregates reduce the workability of the ... The slump of the concrete mix decreases due to an increase in temperature (D) All the above

Last Answer : Answer: Option D

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

Description : 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

Last Answer : Answer: Option C

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of aggregates (C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Description : For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of ... C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Last Answer : Answer: Option D