Civil Engineering - Building Materials

46. 

Water paint is a

A. white wash
B. colour wash
C. whiting
D. distemper
E. all the above.

Answer: Option E

Explanation:

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47. 

Seasoning of timber is done

A. to make it water proof
B. to paint its surface
C. to increase its temperature
D. to remove water.

Answer: Option D

Explanation:

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48. 

The specific gravity of marble, is

A. 2.50
B. 2.60
C. 2.66
D. 2.72
E. 3.00.

Answer: Option D

Explanation:

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49. 

The rocks having alumina or clay as their major constituents, are known as

A. siliceous rocks
B. argillaceous rocks
C. calcareous rocks
D. sedimentary rocks
E. igneous rocks.

Answer: Option B

Explanation:

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50. 

The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner, are known as

A. knots
B. rindgalls
C. burls
D. none of these.

Answer: Option B

Explanation:

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