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UPSC Civil Service Exam Questions - Engineering

Q1:

For the continuous beam (EI constant) loaded as shown in the figure given, the moment at 'B' is

A 0.75 times free moment at mid-span of AB

B same as the free moment at mid-span of AB

C 1.50 times free moment at mid-span of AB

D 2.00 time free moment at mid-span of AB

ANS:A - 0.75 times free moment at mid-span of AB

Option A.
Mb=3wl/16,
at mid of AB free BM=wl/4,
Then ratio 3*4/16 =0.75 times.