Civil Engineering MCQJE Level Civil Engineering
In a mock-test problem built around energy stored in an elastic bar, which answer is most appropriate? Avoid the common trap that strain energy is PL/AE.
Strength of MaterialsStrain EnergyHARD
Choose the correct answer
A
strain energy is PL/AE
B
strain energy is always negative
C
strain energy under gradual axial load is P squared L divided by 2AE
D
strain energy is independent of load
Correct Answer
C. 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: C.
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This MCQ belongs to RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.