BUILDING MATERIALS MCQS SET 49

BUILDING MATERIALS MCQS SET 49

1. In stone masonry, stones (stratified rocks) are so placed that the direction of pressure to the plane
of bedding is
(A) Right angles
(B) 45°
(C) 60°
(D) Parallel
Answer: Option A

2. The most durable varnish is
(A) Water varnish
(B) Spirit varnish
(C) Turpentine varnish
(D) Oil varnish
Answer: Option D

3. Softer variety of steel may be obtained by
(A) Cementation process
(B) Crucible process
(C) Bessemer process
(D) Open hearth process
Answer: Option C

4. Bitumen emulsion is
(A) A liquid containing bitumen in suspension
(B) A paint
(C) Used as anti-corrosive paint
(D) All the above
Answer: Option D

5. Plastic bitumen is generally used for
(A) Road pavements
(B) Expansion joints
(C) Crack fillings
(D) None to these
Answer: Option C

6. Asbestos is
(A) Corrugated sheet used for roofing
(B) An incombustible fire proof material
(C) An organic substance
(D) All the above
Answer: Option D

7. The rocks which are formed due to pouring of magma at the earth's surface are called
(A) Plutonic rocks
(B) Hypabyssal rocks
(C) Volcanic rocks
(D) Igneous rocks
Answer: Option C

8. Invar contains
(A) 12% of nickel
(B) 24% of nickel
(C) 30% to nickel
(D) 36% of nickel
Answer: Option D

9. Distemper is
(A) A paint consisting of powdered chalk, pigments and water
(B) A water proofing agent
(C) A paint consisting of coloured cement and water
(D) A drying agent
Answer: Option A

10. The compound of Portland cement which reacts immediately with water and also sets first is
(A) Tri-calcium silicate
(B) Di-calcium silicate
(C) Tri-calcium aluminate
(D) Tetra calcium alumino ferrite
Answer: Option C