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UPSC Civil Service Exam Questions

Q1:
What is the inclination of resultant reactions at A with the vertical for the frame shown in the given figure ?

A 60°

B 40°

C 30°

D 50°

ANS:C - 30°

Taking moments about the hinge at E BM = 0
at left support,
V×2−H×2√3 = 0
V = H√3
tanθ = H/V.
θ = tan − 1(H√3H)
θ = 30°



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