A cantilever beam is loaded as per the given diagram. Find the bending moment acting at the mid span of beam.

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SSC JE Civil 9 Oct 2023 Shift 1 Official Paper-I
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  1. 50 kN-m
  2. 5000 N-m
  3. 30 kN-m
  4. 3000 N-m

Answer (Detailed Solution Below)

Option 3 : 30 kN-m
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Detailed Solution

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Concept:

The bending moment diagram for a point load at free end of a cantilever beam is given below

Calculation:

Similarly, the bending moment diagram for this case is given below

 

Bending moment acting at the mid-span of beam is 30 kN-m

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