Civil Engineering MCQJE Level Civil Engineering
For Thermal Stress, an examiner focuses on a fully restrained member subjected to a temperature rise. Which option is valid? Avoid the common trap that stress depends only on length.
Strength of MaterialsThermal StressHARD
Choose the correct answer
A
stress depends only on length
B
no stress develops because the member is elastic
C
compressive stress develops when expansion is prevented
D
tensile stress develops for every temperature rise
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 SSC JE Civil Paper-I Technical Mock Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.