Civil Engineering MCQJE Level Civil Engineering
A design assistant has to decide on a fully restrained member subjected to a temperature rise. Which statement is sound? Avoid the common trap that no stress develops because the member is elastic.
Strength of MaterialsThermal StressHARD
Choose the correct answer
A
compressive stress develops when expansion is prevented
B
no stress develops because the member is elastic
C
stress depends only on length
D
tensile stress develops for every temperature rise
Correct Answer
A. compressive stress develops when expansion is prevented
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Restrained thermal expansion produces sigma = E alpha deltaT, compressive for heating. Correct option: A.
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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.