Civil Engineering MCQJE Level Civil Engineering
While reviewing energy stored in an elastic bar, which conclusion is correct? Avoid the common trap that strain energy is independent of load.
Strength of MaterialsStrain EnergyHARD
Choose the correct answer
A
strain energy is PL/AE
B
strain energy is independent of load
C
strain energy is always negative
D
strain energy under gradual axial load is P squared L divided by 2AE
Correct Answer
D. strain energy under gradual axial load is P squared L divided by 2AE
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The load-deflection curve is triangular for gradual elastic loading. Correct option: D.
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This MCQ belongs to SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.