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Building Materials - Section 1 (3)

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  • Building Materials - Section 1
Directions to Solve

Building Materials - Section 1

In the following section you will find all the necessary and important
MCQs based on Building Material. You can solve all the MCQs and can test your skills and
learning abilities.

17. 

For preparing porcelains, the clay should be

A. sufficiently pure
B. of high degree of tanacity
C. of good plasticity
D. All the above.

Answer: Option D

Explanation:

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

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18. 

Galvanising means covering iron with a thin coat of

A. tin
B. zinc
C. glaze
D. coal tar.

Answer: Option B

Explanation:

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

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19. 

The rocks formed by gradual deposition, are called

A. sedimentary rocks
B. igneous rocks
C. metamorphic rocks
D. none of these.

Answer: Option A

Explanation:

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

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20. 

Gniess is obtained from

A. igneous rocks
B. metamorphic rocks
C. sedimentary rocks
D. sedimentary metamorphic rocks.

Answer: Option D

Explanation:

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

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21. 

Asbestos cement

A. is brittle
B. warps due to changes in humidity
C. strength is lowered when saturated by water
D. all the above.

Answer: Option D

Explanation:

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

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22. 

For the manufacture of Portland cement, the proportions of raw materials used, are

A. lime 63% ; silica 22% ; other ingredients 15%
B. lime 22% ; silica 63% ; other ingredients 15%
C. silica 40% ; lime 40% ; other ingredients 20%
D. silica 70% ; lime 20% ; other ingredients 10%.

Answer: Option A

Explanation:

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

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23. 

Brittleness of cold is due to an excess of

A. sulphur
B. carbon
C. phosphorus
D. silicon.

Answer: Option C

Explanation:

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

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24. 

Due to attack of dry rot, the timber

A. cracks
B. shrinks
C. reduces to powder
D. none of these.

Answer: Option C

Explanation:

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

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