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UPSC Civil Service Exam Questions

Q1:
A rigid bar is supported by a spring as shown in the given figure.

The deflection of the point B will be

A 10 mm upward

B 20 mm downward

C 5 mm upward

D 40 mm downward.

ANS:D - 40 mm downward.

The Force in spring F = (500x2L)/L = 1000N. Deflection in the spring δ = F/k = 1000/50 = 20mm. Deflection at the point B = 2δ = 40mm downward.



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