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UPSC Civil Service Exam Questions - Engineering

Q1:

The load carrying capacity of an individual friction pile is 200 kN. What is the total load carrying capacity of a group of 9 such piles with group efficiency factor of 0.8 ?

A 1800 kN

B 1640 kN

C 1440 kN

D 900 kN

ANS:C - 1440 kN

Q group = efficiency * n * Qindividual,
= 0.8 * 9 * 200 = 1440KN.