A. Air motor
B. Induction motor
C. D.C. shunt motor
D. Synchronous motor
A. resistance is inserted in the stator
B. reduced voltage is applied to the stator
C. resistance is inserted in the rotor
D. applied voltage perl stator phase is 57.7% of the line voltage
A. slip ring induction motor
B. squirrel cage induction motor
C. both A. and (b)
D. none of the above
A. 4% in the rotor torque
B. 8% in the rotor torque
C. 12% in the rotor torque
D. 16% in the rotor torque
A. leakage reactance
B. power factor on short circuit
C. short-circuit current under rated voltage
D. all of the above
A. high starting torque is required
B. load torque is heavy
C. heavy pull out torque is required
D. all of the above
A. iron losses in stator will be negligible as compared to that in rotor
B. iron losses in motor will be neg¬ligible as compared to that in rotor
C. iron losses in stator will be less than that in rotor
D. iron losses in stator will be more than that in rotor