Civil Engineering - Building Materials

36. 

Stainless steel resists corrosion due to

A. carbon
B. sulphur
C. vanadium
D. chromium
E. maganese.

Answer: Option D

Explanation:

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37. 

Commonly used thinner in

A. lacquer paints, is alcohol
B. cellulose paints is ethyle acetate
C. oil paints, is naptha
D. distemper, is water
E. all the above.

Answer: Option E

Explanation:

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38. 

Good quality sand is never obtained from

A. river
B. nala
C. sea
D. gravel powder.

Answer: Option C

Explanation:

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39. 

Pick up the rock which is not a sedimentary rock from the following:

A. gravel
B. sand stone
C. gypsum
D. dolerite
E. lignite.

Answer: Option D

Explanation:

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40. 

For a good building stone, its specific gravity should the greater than

A. 1.5
B. 1.7
C. 2.2
D. 2.7.

Answer: Option D

Explanation:

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