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