Civil Engineering MCQJE Level Civil Engineering
Thermal stress case: A fully restrained bar has E=1.0e+05 MPa, alpha=1.8e-05/°C and temperature rise 25°C. Thermal stress is:
Structural AnalysisMechanics, Strength of Materials and Structural AnalysisHARD
Choose the correct answer
A
22.5 MPa
B
90 MPa
C
45 MPa
D
0.00045 MPa
Correct Answer
C. 45 MPa
Why is this the answer?
For full restraint, thermal stress = E alpha DeltaT.
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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.