Ratio of permissible stress in direct compression and bending compression is

Question

Ratio of permissible stress in direct compression and bending compression is

A. Less than 1

B. Between 1 and 1.5

C. Between 1.5 and 2.0

D. Greater than 2

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According to IS: 4561978, the column or the strut is the member whose effective length is greater than

A. The least lateral dimension

B. 2 times the least lateral dimension

C. 3 times the least lateral dimension

D. 4 times the least lateral dimension

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Stress strain curve of high tensile steel

A. Has a definite yield point

B. Does not show definite yield point but yield point is defined by 0.1% proof stress

C. Does not show definite yield point but yield point is defined by 0.2% proof stress

D. Does not show definite yield point but yield point is defined by 2% proof stress,

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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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The most commonly used admixture which prolongs the setting and hardening time is

A. Gypsum

B. Calcium chloride

C. Sodium silicate

D. All of the above

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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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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

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

A. 100 cm

B. 125 cm

C. 150 cm

D. 200 cm

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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

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Permissible compressive strength of M 200 concrete grade is

A. 100 kg/cm²

B. 150 kg/cm²

C. 200 kg/cm²

D. 250 kg/cm²

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A concrete having a slump of 6.5 cm, is said to be

A. Dry

B. Earth moist

C. Semi-plastic

D. Plastic

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Addition of pozzolana to ordinary port land cement, causes

A. Decrease in early strength

B. Reduction in chemical action with sulphates

C. Increase in shrinkage

D. All the above

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The diameter of ties in a column should be

A. More than or equal to one fourth of diameter of main bar

B. More than or equal to 5 mm

C. More than 5 mm but less than one-fourth of diameter of main bar

D. More than 5 mm and also more than one-fourth of diameter of main bar

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'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

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For road pavements, the cement generally used, is

A. Ordinary Portland cement

B. Rapid hardening cement

C. Low heat cement

D. Blast furnace slag cement

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Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads. Select your answer based on the coding system given below:

A. Both A and R is true and R is the correct explanation of A

B. Both A and R is true but R is not the correct explanation of A

C. A is true but R is false

D. A is false but R is true

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The datum temperature for maturity by Plowman, is

A. 23°C

B. 0°

C. - 5.6°C

D. - 11.7°C

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In counterfort retaining walls, the main reinforcement in the stem at support is

A. Not provided

B. Provided only on inner face

C. Provided only on front face

D. Provided both on inner and front faces

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Slump test is done for

A. Clay

B. Sand

C. Lime

D. Concrete

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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

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Strength of concrete with passage of time

A. Increases

B. Decreases

C. Fluctuates

D. Remains constant

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Pick up the incorrect statement from the following:

A. The bottom and top ends of slump mould are parallel to each other

B. The axis of the mould is perpendicular to the end faces

C. The internal surface of the mould is kept clean and free from set cement

D. The mould is in the form of a frustum of hexagonal pyramid

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Sand generally contains salt if it is obtained from:

A. Nala beds

B. River beds

C. Sea beds

D. None of these

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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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Pick up the correct statement from the following:

A. Construction joints are necessarily planned for their locations

B. Expansion joints are provided to accommodate thermal expansion

C. Construction joints are provided to control shrinkage cracks

D. All the above

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For preparing ordinary concrete, the quantity of water used, is

A. 5% by weight of aggregates plus 20% of weight of cement

B. 10% by weight of aggregates plus 10% of weight of cement

C. 5% by weight of aggregates plus 30% of weight of cement

D. 30% by weight of aggregates plus 10% of weight of cement

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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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For construction of structures in sea water, the cement generally preferred to, is

A. Portland-pozzolana cement

B. Quick setting cement

C. Low heat Portland cement

D. Rapid hardening cement

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Sand requiring a high water cement ratio, belongs to

A. Zone I

B. Zone II

C. Zone III

D. Zone IV

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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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For compacting plain concrete road surface of thickness less than 20 cm, we use

A. Internal vibrator

B. Screed vibrator

C. Form vibrator

D. None of these

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Accepted Answer

A. Less than 1

Ratio of permissible stress in direct compression and bending compression is

Correct Answer :

Show all Concrete Technology and Design MCQ

Related Questions

According to IS: 4561978, the column or the strut is the member whose effective length is greater than

Stress strain curve of high tensile steel

Di-calcium silicate (C₂S)

The most commonly used admixture which prolongs the setting and hardening time is

Pick up the correct statement from the following:

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

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

Strength of concrete increases with

Permissible compressive strength of M 200 concrete grade is

A concrete having a slump of 6.5 cm, is said to be

Addition of pozzolana to ordinary port land cement, causes

The diameter of ties in a column should be

'Ware house pack' of cement means

For road pavements, the cement generally used, is

Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads. Select your answer based on the coding system given below:

The datum temperature for maturity by Plowman, is

In counterfort retaining walls, the main reinforcement in the stem at support is

Slump test is done for

The shrinkage of concrete

Strength of concrete with passage of time

Pick up the incorrect statement from the following:

Sand generally contains salt if it is obtained from:

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

Pick up the correct statement from the following:

For preparing ordinary concrete, the quantity of water used, is

On a grading curve, the gap grading is represented by

For construction of structures in sea water, the cement generally preferred to, is

Sand requiring a high water cement ratio, belongs to

Permissible compressive strength of M 150 concrete grade is

For compacting plain concrete road surface of thickness less than 20 cm, we use

Also checkout

Ratio of permissible stress in direct compression and bending compression is

Correct Answer :

Show all Concrete Technology and Design MCQ

Related Questions

According to IS: 4561978, the column or the strut is the member whose effective length is greater than

Stress strain curve of high tensile steel

Di-calcium silicate (C2S)

The most commonly used admixture which prolongs the setting and hardening time is

Pick up the correct statement from the following:

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

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

Strength of concrete increases with

Permissible compressive strength of M 200 concrete grade is

A concrete having a slump of 6.5 cm, is said to be

Addition of pozzolana to ordinary port land cement, causes

The diameter of ties in a column should be

'Ware house pack' of cement means

For road pavements, the cement generally used, is

Assertion A : The load factor for live load is greater than that for dead load. Reason R : The live loads are more uncertain than dead loads. Select your answer based on the coding system given below:

The datum temperature for maturity by Plowman, is

In counterfort retaining walls, the main reinforcement in the stem at support is

Slump test is done for

The shrinkage of concrete

Strength of concrete with passage of time

Pick up the incorrect statement from the following:

Sand generally contains salt if it is obtained from:

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

Pick up the correct statement from the following:

For preparing ordinary concrete, the quantity of water used, is

On a grading curve, the gap grading is represented by

For construction of structures in sea water, the cement generally preferred to, is

Sand requiring a high water cement ratio, belongs to

Permissible compressive strength of M 150 concrete grade is

For compacting plain concrete road surface of thickness less than 20 cm, we use

Also checkout

Di-calcium silicate (C₂S)