Permissible compressive strength of M 150 concrete grade is

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Permissible compressive strength of M 150 concrete grade is

A. 100 kg/cm2

B. 150 kg/cm2

C. 200 kg/cm2

D. 250 kg/cm2

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On a grading curve, the gap grading is represented by

A. A horizontal line

B. A vertical line

C. N.W. inclined line

D. N.E. inclined line

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The fineness modulus of fine aggregate is in the range of

A. 2.0 to 3.5

B. 3.5 to 5.0

C. 5.0 to 7.0

D. 6.0 to 8.5

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If a beam fails in bond, then its bond strength can be increased most economically by

A. Increasing the depth of beam

B. Using thinner bars but more in number

C. Using thicker bars but less in number

D. Providing vertical stirrups

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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

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If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is

A. M 100

B. M 150

C. M 200

D. M 250

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Di-calcium silicate (C₂S)

A. Hydrates rapidly

B. Generates less heat of hydration

C. Hardens rapidly

D. Provides less ultimate strength to cement

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If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain

A. 20 mm particles

B. 10 mm particles

C. 4.75 mm particles

D. All the above

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The design yield stress of steel according to IS: 4561978 is: (Where f_y is the characteristic yield strength of steel)

A. 0.37 f_y

B. 0.57 f_y

C. 0.67 f_y

D. 0.87 f_y

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Pick up the incorrect statement from the following:

A. Admixtures accelerate hydration

B. Admixtures make concrete water proof

C. Admixtures make concrete acid proof

D. Admixtures give high strength

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Separation of water or water sand cement from a freshly concrete, is known

A. Bleeding

B. Creeping

C. Segregation

D. Flooding

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Maximum distance between expansion joints in structures as per IS: 456 1978 is

A. 20 m

B. 30 m

C. 45 m

D. 60 m

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In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on

A. The front face in one direction

B. The front face in both directions

C. The inner face in one direction

D. The inner face in both directions

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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

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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

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Concrete mainly consists of

A. Cement

B. Aggregates

C. Water

D. All the above

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A beam curved in plan is designed for

A. Bending moment and shear

B. Bending moment and torsion

C. Shear and torsion

D. Bending moment, shear and torsion

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Due to circumferential action of the spiral in a spirally reinforced column

A. Capacity of column is decreased

B. Ductility of column reduces

C. Capacity of column is decreased but ductility of column increases

D. Both the capacity of column and ductility of column increase

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Curing of pavements, floors, roofs and slabs, is done by

A. Membrane method

B. Ponding method

C. Covering surface with bags

D. Sprinkling water method

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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

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Pick up the correct proportions of chemical ingredients of cement

A. Lime : Silica : Alumina : Iron oxide : 63 : 22 : 6 : 3

B. Silica : Lime : Alumina : Iron oxide : 63 : 22 : 6 : 3

C. Alumina : Silica : Lime : Iron oxide : 63 : 22 : 6 : 3

D. Iron oxide : Alumina : Silica : Lime : 63 : 22 : 6 : 3

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The diameter of the Vicat plunger is 10 mm and its length varies from

A. 20 mm to 30 mm

B. 30 mm to 40 mm

C. 40 mm to 50 mm

D. 50 mm to 60 mm

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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

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The compressive strength of 100 mm cube as compared to 150 mm cube is always

A. Less

B. More

C. Equal

D. None of the above

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Pick up the incorrect statement from the following:

A. A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive quantity of water

B. The strength of concrete decreases as the water cement ratio increases

C. Good compaction by mechanical vibrations, increases the strength of concrete

D. None of these

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Setting time of cement increases by adding

A. Gypsum

B. Hydrogen peroxide

C. Calcium chloride

D. Sodium oxide

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The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (Where x_u is the depth of neutral axis at the limit state of collapse)

A. 0.367 x_u

B. 0.416 x_u

C. 0.446 x_u

D. 0.573 x_u

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The dimensions of a 35 litre forma for measuring aggregates by volume, are:

A. Length 30 cm, breadth 25 cm, height 30 cm

B. Length 39 cm, breadth 25 cm, height 32 cm

C. Length 27 cm, breadth 27 cm, height 48 cm

D. Length 220 cm, breadth 25 cm, height 40 cm

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Concrete gains strength due to

A. Chemical reaction of cement with sand and coarse aggregates

B. Evaporation of water from concrete

C. Hydration of cement

D. All the above

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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

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In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

A. Compressive and tensile

B. Tensile and compressive

C. Both compressive

D. Both tensile

Discuss this answer

Accepted Answer

C. 200 kg/cm2

Permissible compressive strength of M 150 concrete grade is

Correct Answer :

Show all Concrete Technology and Design MCQ

Related Questions

On a grading curve, the gap grading is represented by

The fineness modulus of fine aggregate is in the range of

If a beam fails in bond, then its bond strength can be increased most economically by

Which of the following statements is incorrect?

If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is

Di-calcium silicate (C₂S)

If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain

The design yield stress of steel according to IS: 4561978 is: (Where f_y is the characteristic yield strength of steel)

Pick up the incorrect statement from the following:

Separation of water or water sand cement from a freshly concrete, is known

Maximum distance between expansion joints in structures as per IS: 456 1978 is

In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on

Pick up the incorrect statement from the following. While performing preliminary test on concrete

The strength and quality of concrete, depend upon:

Concrete mainly consists of

A beam curved in plan is designed for

Due to circumferential action of the spiral in a spirally reinforced column

Curing of pavements, floors, roofs and slabs, is done by

Curing

Pick up the correct proportions of chemical ingredients of cement

The diameter of the Vicat plunger is 10 mm and its length varies from

Pick up the correct statement from the following:

The compressive strength of 100 mm cube as compared to 150 mm cube is always

Pick up the incorrect statement from the following:

Setting time of cement increases by adding

The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (Where x_u is the depth of neutral axis at the limit state of collapse)

The dimensions of a 35 litre forma for measuring aggregates by volume, are:

Concrete gains strength due to

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

In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

Also checkout

Permissible compressive strength of M 150 concrete grade is

Correct Answer :

Show all Concrete Technology and Design MCQ

Related Questions

On a grading curve, the gap grading is represented by

The fineness modulus of fine aggregate is in the range of

If a beam fails in bond, then its bond strength can be increased most economically by

Which of the following statements is incorrect?

If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is

Di-calcium silicate (C2S)

If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve, the graded aggregates do not contain

The design yield stress of steel according to IS: 4561978 is: (Where fy is the characteristic yield strength of steel)

Pick up the incorrect statement from the following:

Separation of water or water sand cement from a freshly concrete, is known

Maximum distance between expansion joints in structures as per IS: 456 1978 is

In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on

Pick up the incorrect statement from the following. While performing preliminary test on concrete

The strength and quality of concrete, depend upon:

Concrete mainly consists of

A beam curved in plan is designed for

Due to circumferential action of the spiral in a spirally reinforced column

Curing of pavements, floors, roofs and slabs, is done by

Curing

Pick up the correct proportions of chemical ingredients of cement

The diameter of the Vicat plunger is 10 mm and its length varies from

Pick up the correct statement from the following:

The compressive strength of 100 mm cube as compared to 150 mm cube is always

Pick up the incorrect statement from the following:

Setting time of cement increases by adding

The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (Where xu is the depth of neutral axis at the limit state of collapse)

The dimensions of a 35 litre forma for measuring aggregates by volume, are:

Concrete gains strength due to

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

In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

Also checkout

Di-calcium silicate (C₂S)

The design yield stress of steel according to IS: 4561978 is: (Where f_y is the characteristic yield strength of steel)

The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (Where x_u is the depth of neutral axis at the limit state of collapse)