Civil Engineering - Building Materials

16. 

Sand stone is

A. sedimentary rock
B. metamorphic rock
C. igneous rock
D. volcanic rock.

Answer: Option A

Explanation:

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17. 

If the furnace is provided with insufficient fuel at low temperatures, the type of pig iron produced, is called

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

Answer: Option C

Explanation:

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18. 

Stainless steel contains

A. 18% of chromuim and 8% nickel
B. 8% of chromium and 18% of nickel
C. 12% of chromium and 36% of nickel
D. 36% of chromium and 12% of nickel.

Answer: Option A

Explanation:

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19. 

Pick up the hypabyssal rock from the following:

A. Granite
B. Dolerite
C. Basalt
D. All the above.

Answer: Option B

Explanation:

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20. 

Depending on the chemical composition and mechanical properties, iron may be classified as

A. cast iron
B. wrought iron
C. steel
D. all the above.

Answer: Option D

Explanation:

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