UPSC Civil Service Exam Questions - Engineering

Q1:

The hoop stress in a dome subjected to uniformly distributed load

A is always compressive

B is tensile at sections whose radius vectors are at angles less than 51°51' with the vertical

C is tensile at sections whose radius vectors are at angles greater than 51°51' with the vertical

D is always tensile

ANS:B - is tensile at sections whose radius vectors are at angles less than 51°51' with the vertical

It's C according to Gupta.