Civil Engineering MCQJE Level Civil Engineering
Quality-control problem: A steel bar of length 2500 mm and area 600 mm² carries 120 kN. If E = 2.0e+05 MPa, elongation is:
Structural AnalysisMechanics, Strength of Materials and Structural AnalysisHARD
Choose the correct answer
A
500 mm
B
25 mm
C
0.25 mm
D
2.5 mm
Correct Answer
D. 2.5 mm
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Axial elongation δ = PL/AE. This gives the answer: 2.5 mm.
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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.