Civil Engineering MCQJE Level Civil Engineering
For field interpretation of Thermal Stress, the issue is a fully restrained member subjected to a temperature rise. What should be selected? Avoid the common trap that tensile stress develops for every temperature rise.
Strength of MaterialsThermal StressHARD
Choose the correct answer
A
no stress develops because the member is elastic
B
tensile stress develops for every temperature rise
C
stress depends only on length
D
compressive stress develops when expansion is prevented
Correct Answer
D. compressive stress develops when expansion is prevented
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Restrained thermal expansion produces sigma = E alpha deltaT, compressive for heating. 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.