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4

Vicat's apparatus is used for

A. Fineness test

B. Consistency test

C. Setting time test

D. Soundness test

Correct Answer :

B. Consistency test


Related Questions

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4

Pick up the correct statement from the following:

A. Higher workability indicates unexpected increase in the moisture content

B. Higher workability indicates deficiency of sand

C. If the concrete mix is dry, the slump is zero

D. All the above

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4

If the size of panel in a flat slab is 6 m × 6 m, then as per Indian Standard Code, the widths of column strip and middle strip are

A. 3.0 m and 1.5 m

B. 1.5 m and 3.0 m

C. 3.0 m and 3.0 m

D. 1.5 m and 1.5 m

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4

The approximate value of the ratio between direct tensile strength and flexural strength is

A. 0.33

B. 0.5

C. 0.75

D. 1.0

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4

In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always

A. Zero

B. Tensile

C. Compressive

D. Tensile or compressive

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4

Ordinary concrete is not used for concrete grade

A. M 100

B. M 150

C. M 250

D. M 400

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4

Admixtures which cause early setting and hardening of concrete are called

A. Workability admixtures

B. Accelerators

C. Retarders

D. Air entraining agents

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4

If the storey height is equal to length of RCC wall, the percentage increase in strength is

A. 0

B. 10

C. 20

D. 30

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4

Tricalcium aluminate (C3A)

A. Reacts fast with water

B. Generates less heat of hydration

C. Causes initial setting and early strength of cement

D. Does not contribute to develop ultimate strength

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4

In reinforced concrete footing on soil, the minimum thickness at edge should not be less than

A. 100 mm

B. 150 mm

C. 200 mm

D. 250 mm

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4

Slump test of concrete is a measure of its

A. Consistency

B. Compressive strength

C. Tensile strength

D. Impact value

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4

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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4

An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. sieve No. 9, more than

A. 5 %

B. 10 %

C. 15 %

D. 20 %

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4

Construction joints are generally provided in concrete

A. Roads

B. Retaining walls

C. Lining of canals

D. All the above

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4

In the method of voids for determination of the quantity of cement paste, it is assumed that

A. Voids in coarse aggregates are filled by fine aggregates

B. Voids in fine aggregates are filled by the cement paste

C. Volume of fine aggregates is equal to total voids in coarse aggregates plus 10% extra

D. All the above

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4

Vicat's apparatus is used for

A. Fineness test

B. Consistency test

C. Setting time test

D. Soundness test

What is the correct answer?

4

The minimum cover in a slab should neither be less than the diameter of bar nor less than

A. 10 mm

B. 15 mm

C. 25 mm

D. 13 mm

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4

A construction joint is provided where

A. Bending moment is small

B. Shear force is small

C. The member is supported by other member

D. All the above

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4

Modulus of rupture of concrete is a measure of

A. Flexural tensile strength

B. Direct tensile strength

C. Compressive strength

D. Split tensile strength

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4

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

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4

A T-shaped retaining wall mainly consists of

A. One cantilever

B. Two cantilevers

C. Three cantilevers

D. Four cantilevers

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4

If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for a singly reinforced rectangular balanced section will be

A. 0.35 d

B. 0.40 d

C. 0.45 d

D. Dependent on grade of concrete also

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4

Proper batching ensures

A. Economy

B. Durability

C. Workability

D. All the above

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4

Ordinary Portland cement is manufactured from

A. Lime stone and clay

B. Gypsum and lime

C. Pozzolana

D. Lime, pozzolana and clay

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4

Vicat apparatus is used for

A. Fineness test

B. Consistency test

C. Test for setting time

D. Test for tensile strength

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4

Pick up the correct statement from the following:

A. The concrete gains strength due to hydration of cement

B. The concrete does not set at freezing point

C. The strength of concrete increases with its age

D. All the above

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4

The increased cohesiveness of concrete, makes it

A. Less liable to segregation

B. More liable to segregation

C. More liable to bleeding

D. More liable for surface scaling in frosty weather

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4

The recommended value of modular ratio for reinforced brick work is

A. 18

B. 30

C. 40

D. 58

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4

In a spherical dome the hoop stress due to a concentrated load at crown is

A. Compressive everywhere

B. Tensile everywhere

C. Partly compressive and partly tensile

D. Zero

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4

For concreting of heavily reinforced sections without vibration, the workability of concrete expressed as compacting factor should be

A. 0.75 - 0.80

B. 0.80 - 0.85

C. 0.85 - 0.92

D. Above 0.92

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4

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