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.Management Sciences
A. become unstable
B. draw excessive armature current and may burn out
C. fall out of synchronism and come to stand still
D. run as induction motor
Related Mcqs:
- In a split phase motor____________?
- A. the starting winding is connected through a centrifugal switch B. the running winding is connected through a centrifugal switch C. both starting and running windings are connected through a centrifugal switch D. centrifugal switch is used to control supply voltage...
- Which of the following motors is used in mixies ?
- A. Repulsion motor B. Reluctance motor C. Hysteresis motor D. Universal motor...
- Single phase induction motor usually operates on__________?
- A. 0.6 power factor lagging B. 0.8 power factor lagging C. 0.8 power factor leading D. unity power factor...
- When a D.C. series motor is connected to A.C. supply, the power factor will be low because of____________?
- A. high inductance of field and armature circuits B. induced current in rotor due to variations of flux C. fine copper wire winding D. none of the above...
- Two-value capacitor motor finds increased application as compressor motor in small home air-conditioners because_____________?
- A. it is comparatively cheaper B. it has almost non-destructible capacitor C. it has low starting as well as running currents at relatively high power factor D. it is quiet in operation...
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