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Building Materials

Q1: Pick up the correct statement from the following:

A If the percentage content of moisture exceeds 10%, increase in bulk of sand starts increasing

B The bulking of fine sand is more than that of coarse sand

C Adding 5% to 6% of moisture content by weight, increases the volume of dry sand from 18% to 38%

D The volume of fully saturated sand equals that of dry sand

E All the above.

ANS:E - All the above.

all are correct.  bulking sand increases up to 2-3% only then it became saturated.

And bulking increases with increase in the fine content  more than 10% bulking decreases. C option is incorrect because Bulking of sand more in 5% (4-6%) after then increases moisture decreased the volume. Buckling decreases with a Moisture content of more than 5%.



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