Multiple choice

A simply supported beam AB has the bending moment diagram as shown in the following figure. The beam is possibly under the action of following loads :

  1. Couples of M at C and 2M at D

  2. Couples of 2M at C and M at D

  3. Concentrated loads of M/L at C and 2M/Lat D

  4. Concentrated load of M/L at C and couple of 2M at D.

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