A. high loads
B. low voltage supply
C. improper design of machine
D. harmonics developed in the motor
A. 8 poles
B. 6 poles
C. 4 poles
D. 2 poles
A. star connected only
B. delta connected only
C. A. and B. both
D. none of the above
A. frequency
B. rotor inductive reactance
C. square of supply voltage
D. all of the above
A. twice the full load torque
B. 1.5 times the full load torque
C. equal to full load torque
A. magnetic field and rotor rotate in opposite direction
B. rotor speed is less than the synchronous speed of the field and are in the same direction
C. rotor speed is more than the synchronous speed of the field and are in the same direction
D. none of the above
A. speed control is required
B. frequent starting, stopg and reversing is required
C. high starting torque is needed
D. all above features are required