A. three phase transformers
B. compound generators
C. D.C. series motors
D. induction motors
A. bigger
B. smaller
C. same
D. any of the above
A. frequency
B. rotor inductive reactance
C. square of supply voltage
D. all of the above
A. pulling the motor directly on line without a starter
B. locking of rotor due to harmonics
C. starting the motor on load which is more than the rated load
D. interchanging two supply phases for quick stopg
A. proper ventilation
B. using DOL starter
C. auto-transformer starter
D. having number of rotor slots more or less than the number of stator slots (not equal)
A. k/torque with direct switching
B. K x torque with direct switching
C. K2 x torque with direct switching
D. k2/torque with direct switching
A. high speed steel
B. stainless steel
C. carbon steel
D. cast iron