Three Phase Induction Motors The advantage of wound rotor motor is that _______ It requires less maintenance External resistance can be inserted in the rotor circuit It is inexpensive None of the listed here It requires less maintenance External resistance can be inserted in the rotor circuit It is inexpensive None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The 3- phase induction motor is so designed that the rotor should have ______ under running conditions. Large slip High reactance Low resistance high resistance Large slip High reactance Low resistance high resistance ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors An induction motor is preferred to a dc motor because it _______ Has simple and rugged construction None of the listed here Provides fine speed control Provides high starting torque Has simple and rugged construction None of the listed here Provides fine speed control Provides high starting torque ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The shaft of an induction motor is made of Carbon steel Cast iron Stainless steel High speed steel Carbon steel Cast iron Stainless steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor of an induction motor runs at Any of the above Synchronous speed Above synchronous speed Below synchronous speed Any of the above Synchronous speed Above synchronous speed Below synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3-phase induction motor is running at slip S, then rotor copper loss is equal to None of the listed here S × rotor input (1+S) × rotor input (1-S) × rotor input None of the listed here S × rotor input (1+S) × rotor input (1-S) × rotor input ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS