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UPSC Civil Service Exam Questions - Engineering

Q1:

A symmetrical three-hinged parabolic arch of span L and rise h is hinged at springings and crown. It is subjected to a. U.d.l. W throughout the span. Which the banding moment at a section L/4 from the left support.

A WL2/8

B WL2/16

C WL2/8 h

D zero

ANS:A - WL2/8

3 hinged parabolic arch subjctd to udl of full length, BM at any section is zero.