Civil Engineering - Building Materials

31.
Gniess is obtained from
igneous rocks
metamorphic rocks
sedimentary rocks
sedimentary metamorphic rocks.
Answer: Option
Explanation:
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32.
The rocks formed by gradual deposition, are called
sedimentary rocks
igneous rocks
metamorphic rocks
none of these.
Answer: Option
Explanation:
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33.
Galvanising means covering iron with a thin coat of
tin
zinc
glaze
coal tar.
Answer: Option
Explanation:
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34.
For preparing porcelains, the clay should be
sufficiently pure
of high degree of tanacity
of good plasticity
All the above.
Answer: Option
Explanation:
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35.
Polymerization helps to improve the property of
strength
rigidity
elasticity
all of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.