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RRB Junior Engineer / DMS / CMA 2019 · Question 3447 of 3719

Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its centre of gravity and parallel to the depth, is-

  1. Abd 3/36
  2. Bdb 3/36
  3. Cbd 3/12
  4. Ddb 3/12Correct

Answer: D. db 3/12

Explanation

Explanation: Moment of inertia of the rectangular section about X-X axis passing through the C.G. of the section (parallel to width): Moment of inertia of the rectangular section about Y-Y axis passing through the C.G. of the section (parallel to depth):

Source: RRB JE 2019 (CBT 2) (ME) Previous Year Paper (31 Aug 2019) — prepp.in solved-paper PDF (answer key with explanations) · reliable-secondary

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