Civil Engineering - Building Materials
Exercise :: Building Materials - Section 1
6. |
Ultimate strength to cement is provided by |
A. |
Tricalcium silicate | B. |
Di-calcium silicate | C. |
Tri-calcium aluminate | D. |
Tetra calcium alumino ferrite. |
Answer: Option B
Explanation:
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7. |
Elastomers can extend upto |
A. |
five times their original dimensions | B. |
seven times their original dimensions | C. |
ten times their original dimensions | D. |
three times their original dimensions. |
Answer: Option C
Explanation:
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8. |
Bitumen felt |
A. |
is used as water proofing material | B. |
is used as damp proofing material | C. |
is made from bitumen and hessian fibres | D. |
all the above. |
Answer: Option D
Explanation:
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9. |
In the method of condensation polymerization, |
A. |
low-molecular substances are removed from the high molecular substance | B. |
the reaction proceeds with an evolution of ammonia | C. |
the reaction proceeds with an evolution of hydrogen chloride | D. |
all the above. |
Answer: Option D
Explanation:
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10. |
In the cement the compound quickest to react with water, is |
A. |
Tricalcium aluminate | B. |
Tetra-calcium alumino-ferrite | C. |
Tricalcium silicate | D. |
Dicalcium silicate. |
Answer: Option A
Explanation:
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