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UPSC Civil Service Exam Questions - Engineering

Q1:

Purlins are provided, in industrial buildings, over roof trusses to carry dead loads, live loads and wind loads. As per IS code, what are they assumed to be ?

A Simply supported

B Cantilever

C Continuous

D Fixed

ANS:C - Continuous

Purlins are placed over the roof truss in perpendicular directions over all the roof truss. Purlin is like a Beam and roof truss is like a support.

If there is more than two roof truss then only purlin is like a continuous beam. Otherwise it is a simply supported beam.

So the answer is C continuous.