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141.

The ratio of the volume of moist sand to the volume of dry sand is known as

A.	crushing value	B.	impact value
C.	bulking factor	D.	none of these

142.

Fine sand bulks

less

143.

The fineness modulus of an aggregate is roughly proportional to

A.	specific gravity of the aggregate	B.	shape of the aggregate
C.	average size of particles in the aggregate	D.	grading of the aggregate

144.

The coarser the aggregate, the

higher

lower

145.

The value of finencess modulus for fine sand may range between

A.	1.1 to 1.3	B.	1.3 to 1.6
C.	1.6 to 2.2	D.	2.2 to 2.6

146.

If the fineness modulus of sand is 3, then the sand is graded as

A.	very fine sand	B.	fine sand
C.	medium sand	D.	coarse sand

147.

The presence of

A.	sodium carbonate and bicarbonate	B.	calcium chloride
C.	sodium chloride	D.	sodium sulphate

148.

The presence of calcium chloride in water

A.	accelerates setting of cement	B.	accelerates hardening of cement
C.	causes little effect on quality of concrete	D.	all of these

149.

The admixtures are added in concrete to

A.	accelerate the rate of setting and hardening of cement	B.	make the concrete water proof, acid proof etc.
C.	reduce the bleeding and segregation of concrete mix	D.	all of the above

150.

Water cannot be used as a lubricant in concrete mix.

True

False