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UPSC Civil Service Exam Questions - Engineering

Q1:

A 2-metre diameter water pipe is required to withstand a 200 meter head of water. Assuming the limiting tensile stress for the pipe material to be 200 kg/cm2, the minimum thickness of the material of the pipe to be used will have to be

A 5 cm

B 10 cm

C 15 cm

D 20 cm

ANS:B - 10 cm

There is a misprint in this question the stress should be 20000 not 200.

Then the answer will be 10cm.