| 1. | The wattage of motor for driving domestic sewing machine will be around ? | |
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100 to 150 W
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40 to 75 W
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10 to 30 W
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5 to 10 W
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Report Question| 2. | A universal motor can run on ? | |
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A.C. only
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D.C. only
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either A.C. or D.C.
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none of the above
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| 3. | The direction of rotation of an hysteresis motor is determined by ? | |
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interchanging the supply leads
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position of shaded pole with respect to main pole
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retentivity of the rotor material
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none of these
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| 4. | The value of starting capacitor of a fractional horse power motor will be ? | |
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109 ?F
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200 ?F
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300 ?F
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400 ?F
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| 5. | In a split phase motor ? | |
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the starting winding is connected through a centrifugal switch
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the running winding is connected through a centrifugal switch
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both starting and running windings are connected through a centrifugal switch
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centrifugal switch is used to control supply voltage
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| 6. | In a split phase motor, the running winding should have ? | |
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high resistance and low inductance
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low resistance and high inductance
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high resistance as well as high inductance
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low resistance as well as low inductance
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| 7. | Which of the following motor will give relatively high starting torque ? | |
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Capacitor start motor
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Capacitor run motor
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Split phase motor
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Shaded pole motor
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| 8. | The wattage rating for a ceiling fan motor will be in the range ? | |
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200 to 250 W
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250 to 500 W
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50 to 150 W
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10 to 20 W
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| 9. | Which of the following motors is preferred for tape-recorders ? | |
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Shaded pole motor
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Hysteresis motor
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Two value capacitor motor
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Universal motor
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| 10. | The motor used on small lathes is usually ? | |
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universal motor
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D.C. shunt motor
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single-phase capacitor run motor
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3-phase synchronous motor
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