Civil Engineering MCQAE Level Civil Engineering
A frame in a horizontal plane has AB = L, BC = L/2, CD = L/2 and carries a vertical concentrated load P at the free end D (D lies directly below the mid-point of AB). The bending moment at the middle of AB is
Structural AnalysisStructural AnalysisMEDIUM
Choose the correct answer
A
PL/2 (sagging)
B
PL/2 (hogging)
C
PL (hogging)
D
Zero
Correct Answer
D. Zero
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Taking the free body from the mid-section of AB to D, the moment of P resolves entirely into torsion of AB (PL/2); the vertical-plane bending moment at the midpoint is zero.
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.