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.Management Sciences
A. It requires more maintenance of commutator and other mechanical devices
B. It makes quite a bit of noise on starting
C. In fractional horse power motors, it has replaced the capacitor motors
D. It is not easily reversed
Related Mcqs:
- In a shaded pole motor, the shading coil usually consist of___________?
- A. a single turn of heavy wire which is in parallel with running winding B. a single turn of heavy copper wire which is short-circuited and carries only induced current C. a multilayer fine gauge copper wire in parallel with running winding D. none of the above...
- Short-circuiter is used in_____________?
- A. repulsion induction motor B. repulsion motor C. repulsion start induction run motor D. none of the above...
- A schrage motor can run on___________?
- A. zero slip B. negative slip C. positive slip D. all of the above...
- The direction of rotation of universal motor can be reversed the by reversing the flow of current through__________?
- A. armature winding B. field winding C. either armature winding or field winding D. none of the above...
- The purpose of stator winding in the compensated repulsion motor is to_____________?
- A. provide mechanical balance B. improve power factor and provide better speed regulation C. prevent hunting in the motor D. eliminate armature reaction...
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