| 1. | A single-phase induction motor is ? | |
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inherently self-starting with high torque
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inherently self-starting with low torque
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inherently non-self-starting with low torque
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inherently non-self-starting with high torque
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Report Question| 2. | Burning out of windings is due to ? | |
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short circuited capacitor
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capacitor value having changed
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open circuiting of capacitor
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none of the above
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| 3. | In a single phase motor the centrifugal switch ? | |
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disconnects auxiliary winding of the motor
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disconnects main winding of the motor
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reconnects the main winding the motor
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reconnects the auxiliary winding of the motor
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| 4. | The rotor developed by a single-phase motor at starting is ? | |
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more than the rated torque
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rated torque
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less than the rated torque
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zero
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| 5. | The running winding of a single phase motor on testing with meggar is found to be ground. Most probable location of the ground will be ? | |
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at the end connections
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at the end terminals
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anywhere on the winding inside a slot
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at the slot edge where coil enters or comes out of the slot
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| 6. | The direction of rotation of universal motor can be reversed the by reversing the flow of current through ? | |
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armature winding
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field winding
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either armature winding or field winding
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none of the above
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| 7. | The rotor of a hysteresis motor is made of ? | |
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aluminium
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cast iron
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chrome steel
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copper
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| 8. | In split phase motor main winding is of ? | |
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thin wire placed at the top of the slots
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thin wire placed at the bottom of the slots
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thick wire placed at the bottom of slots
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thick wire placed at the top of the Slots
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| 9. | The shaded pole motor is used for ? | |
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high starting torque
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low starting torque
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medium starting torque
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very high starting torque
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| 10. | In repulsion motor, zero torque is developed when ? | |
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brush axis is 45º electrical to field axis
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brush axis coincides with the field axis
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brush axis is 90º electrical to field axis
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both (b) and (c)
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