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GATE (CE) 2022: BUILDING MATERIALS #22

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Question 1

Transportation of concrete-mix by pumps is very convenient method, particularly in case of

Question 2

The advantage in using plywood is that the

Question 3

Assertion (A): The rate of hydration is faster in finer cements.
Reason (R): The surface area of fine cement is more in case of finer cement.

Question 4

Consider the following statements : Presence of
Na2O and O in concrete leads to
1) Expansive reaction in concrete
2) Cracking of concrete
3) Disruption of concrete
4) Shrinkage of concrete
Which of the above statements are correct?

Question 5

Statement (I): Shutter vibrators are preferred over needle vibrators for pre-stressed precast beams for bridges.
Statement (II): Needle vibrators may get choked by the leaking in of cement paste.

Question 6Multiple Correct Options

Correct statement regarding manufacturing of cement
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May 28ESE & GATE CE