Civil Engineering - Building Materials

41. 

The commonly used colour pigment in paints, is

A. ambers
B. carbon black
C. iron oxide
D. lamp black
E. all the above.

Answer: Option E

Explanation:

No answer description available for this question. Let us discuss.

42. 

Varnish is a transparent or semi-transparent solution of resinuous substances in

A. alcohol
B. linseed
C. turpentine
D. all the above.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

43. 

Initial setting time of cement for asbestos cement products should be not less than

A. 30 minutes
B. 50 minutes
C. 75 minutes
D. 90 minutes.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

44. 

The variety of pig iron used for the manufacture of steel by Bessemer process, is

A. Bessemer pig
B. Grey pig
C. White forge pig
D. Mottled pig.

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

45. 

For melting one tonne of cast iron

A. 700 m3 air is required
B. 20 kg limestone is required
C. one quintal coke is required
D. all the above.

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.