Three Phase Induction Motors The advantage of wound rotor motor is that _______ It requires less maintenance It is inexpensive External resistance can be inserted in the rotor circuit None of the listed here It requires less maintenance It is inexpensive External resistance can be inserted in the rotor circuit None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The torque developed by a 3 phase induction motor least depends on Rotor power factor Rotor current Rotor emf Shaft diameter Rotor power factor Rotor current Rotor emf Shaft diameter ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If an induction motor is running at slip S, then rotor output is ______ S × rotor input (1-S) × rotor input (1+S) × rotor input (S-1) × rotor input S × rotor input (1-S) × rotor input (1+S) × rotor input (S-1) × rotor input ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Partly star and partly delta Star Delta None of the listed here Partly star and partly delta Star Delta None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have Zero frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency Zero frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. The same frequency as the slip frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The starting torque of a 3-phase induction motor is _______ supply voltage. Directly proportional to None of the listed here Directly proportional to sqaure of Independent of Directly proportional to None of the listed here Directly proportional to sqaure of Independent of ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS