Civil Engineering - Building Materials

11. 

The initial setting time of lime-pozzolana, is

A. 30 minutes
B. 60 minutes
C. 90 minutes
D. 120 minutes.

Answer: Option D

Explanation:

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12. 

The clay to be used for manufacturing bricks for a large project, is dugout and allowed to weather throughout

A. the monsoon
B. the winter
C. the summer
D. none of these.

Answer: Option A

Explanation:

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13. 

The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called

A. Plutonic rocks
B. Hypabyssal rocks
C. Volcanic rocks
D. Igneous rocks.

Answer: Option A

Explanation:

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14. 

Quartzite is a

A. metamorphic rock
B. argillaceous rock
C. calcareous rock
D. silicious rock.

Answer: Option D

Explanation:

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15. 

The variety of pig iron used for manufacture of wrought iron, is

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

Answer: Option C

Explanation:

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