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AC 3 PHASE INDUCTION MOTOR
Set 7
Set 7
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Q13466
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Which speed control method of 3 f motor is used only induction motor supplied by generator?
A
Casecade operation method
B
By changing the number of stator poles
C
By injection Emf in rotor circuit
D
By changing the supplied voltage
Q13467
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Which method of speed control is only applicable for 3 phase slipring induction motor?
A
Casecade operation method
B
Rotor rheostat speed control
C
Changing the applied frequency method
D
Changing the number of stator poles method
Q13468
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Which method of speed control of 3 phase induction motor above and below normal speed can be obtained?
A
By rotor rheostat control
B
By changing applied voltage
C
By injecting EMF in rotor circuit
D
By changing the number of stator poles
Q13469
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Which method of speed control of 3 phase induction motor only two speeds can be obtained?
A
By cascade operation
B
By changing the applied voltage
C
By changing the supply frequency
D
By changing the number of stator poles
Q13470
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Which method of speed control can be obtained from rotor side of 3 phase induction motor?
A
Voltage control
B
Cascade operation
C
Pole changing control
D
Supply frequency control
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