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UPSC Civil Service Exam Questions - Engineering

Q1:

A reinforced concrete beam is designed for the limit states of collapse in flexure a shear. Which of the following limit states of serviceability have to be checked ?
1. Deflection
2. Cracking
3. Durability
Select the correct answer using the codes given below :

A 1 alone

B 1 and 2

C 2 and 3

D 1, 2 and 3

ANS:C - 2 and 3

The limit states of collapse is given in the question but none of the options is related to collapse criteria. But all options are of limit state of serviceability.
#limit state of serviceability -
*Crack due to fatigue.
*Repairable damage.
*Corrosion.
*Fire.
*Deformation.
*Deflection.
*Vibration.
*Durability.