Q.1.

According to IS : 382-a good aggregate should be

Q.2.

If the depth of moist sand in a cylinder iscm and the depth of the sand when fully inundated with water iscm, the bulking of the moist sand, is

Q.3.

Ordinary Portland cement is manufactured from

Q.4.

Pick up the correct statement from the following:

Q.5.

For an ordinary Portland cement

Q.6.

Gypsum is added for

Q.7.

An excess of flaky particles in concrete aggregates

Q.8.

On a grading curve, the gap grading is represented by

Q.9.

A concrete using an air entrained cement

Q.10.

Pick up the incorrect statement from the following:

Q.11.

Pick up the correct statement from the following:

Q.12.

An aggregate which passes throughmm I.S. sieve and is retained onmm sieve, is said to be flaky if its least dimension is less than

Q.13.

An ideal ware house, is provided

Q.14.

Permissible compressive strength of Mconcrete grade is

Q.15.

Thedays cube strength of mass concrete using aggregates of maximum size 5 cm for gravity dams should be

Q.16.

Pick up the correct statement from the following:

Q.17.

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

Q.18.

The strength and quality of concrete, depend upon:

Q.19.

The maximum thickness of concrete floor of a cement warehouse, is

Q.20.

The size of fine aggregates does not exceed

Q.21.

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

Q.22.

1.S.I. has specified the full strength of concrete after

Q.23.

The concrete mix which causes difficulty in obtaining a smooth finish, possess

Q.24.

Bulking of sand is

Q.25.

Pick up the incorrect statement from the following:

Q.26.

The bulk density of aggregates, depends upon

Q.27.

Pick up the correct statement from the following:

Q.28.

Higher workability of concrete is required if the structure is

Q.29.

Ifkg of fine aggregates andkg of coarse agregates are mixed in a concrete whose water cement ratio is 0.the weight of water required for harsh mix, is

Q.30.

Expansion joints are provided if the length of concrete structures exceeds