Civil Engineering MCQJE Level Civil Engineering
For Strain Energy, an examiner focuses on energy stored in an elastic bar. Which option is valid? Avoid the common trap that strain energy is PL/AE.
Strength of MaterialsStrain EnergyHARD
Choose the correct answer
A
strain energy is independent of load
B
strain energy is always negative
C
strain energy is PL/AE
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 RRB JE Civil & Allied Engineering CBT-2 Full Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.