| 1. | In split-phase motor auxiliary winding is of ? | |
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thick wire placed at the bottom of the slots
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thick wire placed at the top of the slots
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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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Report Question| 2. | Which of the following single-phase induction motors is generally used in time phonographs ? | |
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Resistance start
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Capacitor start capacitor run
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Shaded pole
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Universal
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| 3. | Which of the following motors can be run on AC. as well as D.C. supply ? | |
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Universal motor
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Repulsion motor
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Synchronous motor
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Reluctance motor
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| 4. | The purpose of stator winding in the compensated repulsion motor is to ? | |
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provide mechanical balance
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Improve power factor and provide better speed regulation
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prevent hunting in the motor
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eliminate armature reaction
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| 5. | Which of the following motors is used in tape-recorders ? | |
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Hysteresis motor
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Reluctance motor
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Capacitor-run motor
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Universal motor
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| 6. | If starting winding of a single-phase induction motor is left in the circuit, it will ? | |
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run faster
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spark at light loads
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draw excessive current and overheat
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run slower
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| 7. | A universal motor is one which ? | |
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can be operated either on D.C. or A.C. supply at approximately the same speed and output
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can be marketed internationally
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runs at dangerously high speed on no-load
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none
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| 8. | In a split-phase motor the ratio of number of turns for starting winding to that for running winding is ? | |
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less than one
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more than one
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one
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two
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| 9. | If a single-phase motor runs hot the probable cause cannot be ? | |
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blown fuses
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low voltage
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high voltage
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shorted stator coils
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| 10. | For a system involving sound recording and reproduction which motor would you select ? | |
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Shaded-pole motor
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Universal motor
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Reluctance motor
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Hysteresis motor
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