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191.

The ultimate strength of rapid hardening cement is just the same as that of normal setting cement.

True

False

192.

High alumina cement is

A.	made by fusing together a mixture of lime-stone and bauxite	B.	highly resistant to heat, chemical and other corrosive acids
C.	used for structures subjected to the action of sea water	D.	all of the above

193.

High early strength of cement is obtained as a result of

A.	fine grinding	B.	burning at high temperatures
C.	decreasing the lime content	D.	increasing the quantity of gypsum

194.

A fine aggregate is one whose particles are of size

A.	4.75 mm	B.	below 4.75 mm
C.	6.75 mm	D.	above 6.75 mm

195.

A coarse aggregate is one whose particles are of size

A.	4.75 mm	B.	below 4.75 mm
C.	6.75 mm	D.	above 6.75 mm

196.

If the water-cement ratio is low, the strength of the mix is high.

Agree

Disagree

197.

The higher water cement ratio in concrete results in

A.	a weak mix	B.	a stronger mix
C.	better workable mix	D.	less bleeding

198.

The slump commonly adopted for concrete for road works is

A.	12 to 25	B.	20 to 28
C.	25 to 50	D.	50 to 100

199.

The slump commonly adopted for concrete for columns is

A.	25 to 50	B.	50 to 100
C.	75 to 175	D.	175 to 200

200.

The vertical distance between the wall plate and top of the ridge is called

A.	rise	B.	pitch
C.	template	D.	gable