In a mock-test problem built around cross-section classification, which answer is most appropriate? Avoid the common trap that plastic sections are never compact.
Choose the correct answer
plastic sections are never compact
a plastic section buckles before yield at every fibre
a plastic section can develop and sustain plastic moment with rotation capacity
classification is unrelated to width-thickness ratio
Correct Answer
C. a plastic section can develop and sustain plastic moment with rotation capacity
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Section class controls local buckling and rotation capacity. 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.