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UPSC Civil Service Exam Questions - Engineering

Q1:

While driving a large number of piles in loose sand :

A It is advantageous to follow a sequence of pile driving such that the inner piles are driven first and then proceed outwards

B It is advantageous to follow a sequence of pile driving such that the piles near the periphery are driven first and inner piles are driven later

C It is advantageous to follow a sequence of pile driving such that alternately inner and outer piles are driven

D Driving of piles can be done in any random order

ANS:A - It is advantageous to follow a sequence of pile driving such that the inner piles are driven first and then proceed outwards

Piles are Always driven from the inner part to the outer part because if drawn from the outer to the inner then due to vibration the inner soil will fail as we come closer to the inner side.