Home
Current Affairs January 2024

What is the correct answer?

4

If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of water is,

A. 20 %

B. 25 %

C. 30 %

D. 35 %

Correct Answer :

B. 25 %


Related Questions

What is the correct answer?

4

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

What is the correct answer?

4

According to Whitney's theory, ultimate strain of concrete is assumed to be

A. 0.03 %

B. 0.1 %

C. 0.3 %

D. 3 %

What is the correct answer?

4

Ordinary concrete is not used for concrete grade

A. M 100

B. M 150

C. M 250

D. M 400

What is the correct answer?

4

To determine the modulus of rupture, the size of test specimen used is

A. 150 × 150 × 500 mm

B. 100 × 100 × 700 mm

C. 150 × 150 × 700 mm

D. 100 × 100 × 500 mm

What is the correct answer?

4

Most common method of pre-stressing used for factory production is

A. Long line method

B. Freyssinet system

C. Magnel-Blaton system

D. Lee-Macall system

What is the correct answer?

4

According to I.S. : 456, the number of grades of concrete mixes, is

A. 3

B. 4

C. 5

D. 7

What is the correct answer?

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

What is the correct answer?

4

Inert material of a cement concrete mix, is

A. Water

B. Cement

C. Aggregate

D. None of these

What is the correct answer?

4

In a pile of length l, the points of suspension from ends for lifting it are located at

A. 0.207 l

B. 0.25 l

C. 0.293 l

D. 0.333 l

What is the correct answer?

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

What is the correct answer?

4

As compared to ordinary Portland cement, high alumina cement has

A. Higher initial setting time but lower final setting time

B. Lower initial setting time but higher final setting time

C. Higher initial and final setting times

D. Lower initial and final setting times

What is the correct answer?

4

Addition of pozzolana to cement causes

A. Reduction in permeability

B. Loss of heat of hydration

C. Reduction in bleeding

D. All the above

What is the correct answer?

4

For a good concrete

A. Aggregates should be hard and durable

B. Water should be free from organic materials

C. Cement should be sufficient to produce the required strength

D. All the above

What is the correct answer?

4

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

What is the correct answer?

4

The limits of percentage p of the longitudinal reinforcement in a column is given by

A. 0.15% to 2%

B. 0.8% to 4%

C. 0.8% to 6%

D. 0.8% to 8%

What is the correct answer?

4

The most useless aggregate is one whose surface texture is

A. Smooth

B. Granular

C. Glassy

D. Honey combed and porous

What is the correct answer?

4

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

What is the correct answer?

4

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

What is the correct answer?

4

Pick up the correct statement from the following:

A. According to the petrological characteristics, concrete aggregates are classified as heavy weight, normal weight and light weight

B. According to the shape of the particles, concrete aggregates are classified as rounded irregular, angular and flaky

C. According to the surface texture of the particles, the concrete aggregates are classified as glassy, smooth, granular, rough, crystalline, honey combed and porous

D. All the above

What is the correct answer?

4

A continuous beam is deemed to be a deep beam when the ratio of effective span to overall depth (1/D) is less than

A. 1.5

B. 2.0

C. 2.5

D. 3.0

What is the correct answer?

4

Strength of concrete with passage of time

A. Increases

B. Decreases

C. Fluctuates

D. Remains constant

What is the correct answer?

4

Di-calcium silicate (C2S)

A. Hydrates rapidly

B. Generates less heat of hydration

C. Hardens rapidly

D. Provides less ultimate strength to cement

What is the correct answer?

4

The lower water cement ratio in concrete, introduces

A. Smaller creep and shrinkage

B. Greater density and smaller permeability

C. Improved frost resistance

D. All the above

What is the correct answer?

4

A flaky aggregate is said to be elongated if its length is

A. Equal to the mean size

B. Twice the mean size

C. Thrice the mean size

D. Four times the mean size

What is the correct answer?

4

Minimum thickness of load bearing RCC wall should be

A. 50 mm

B. 100 mm

C. 150 mm

D. 200 mm

What is the correct answer?

4

The minimum diameter of longitudinal bars in a column is

A. 6 mm

B. 8 mm

C. 12 mm

D. 16 mm

What is the correct answer?

4

The size of fine aggregates does not exceed

A. 2.75 mm

B. 3.00 mm

C. 3.75 mm

D. 4.75 mm

What is the correct answer?

4

Maximum percentage reinforcement in case of slabs is limited to

A. 2

B. 4

C. 6

D. 8

What is the correct answer?

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

What is the correct answer?

4

The minimum percentage of chemical ingredient of cement is that of

A. Magnesium oxide

B. Iron oxide

C. Alumina

D. Lime