Civil Engineering MCQAE Level Civil Engineering
A cantilever beam of length L carries a point load P at the free end. The strain energy stored is
Strength of MaterialsStrength of MaterialsMEDIUM
Choose the correct answer
A
PL^3/6EI
B
P^2L^3/6EI
C
P^2L^3/3EI
D
P^2L^2/6EI
Correct Answer
B. P^2L^3/6EI
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Strain energy = P x deflection/2 = P(PL^3/3EI)/2 = P^2L^3/(6EI)
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.