Q. able to withstand

  • (A) bending moment due to weight of the armature.
  • (B) any unbalanced magnetic pull on the armature core.
  • (C) twisting stains due to transmission of torque.
  • (D) bending moment, unbalanced magnetic pull and twisting stains
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✅ Correct Answer: (D) bending moment, unbalanced magnetic pull and twisting stains
Explanation: the armature shaft must be able to withstand any unbalanced magnetic pull on the armature core, bending moment due to weight of the armature and commutator, twisting stains due to transmission of torque, for a good and long run application of motor.

Published by Mr. Dubey ⭐ 111.54K Points at 17-Sep-2023 11:28 am in Electrical Drives and Controls (EDC)

Explanation by: Mr. Dubey
the armature shaft must be able to withstand any unbalanced magnetic pull on the armature core, bending moment due to weight of the armature and commutator, twisting stains due to transmission of torque, for a good and long run application of motor.

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