UPSC Civil Service Exam Questions - Engineering

Q1:

For the frame shown in the figure, the distribution factors for members BC and BA at joint B are

A 0.4, 0.6

B 0.5, 0.5

C 0.6, 0.4

D 0.7, 0.3

ANS:C - 0.6, 0.4

Please explain the given solution.