Three Phase Induction Motors Very large 3-phase induction motors (greater than 25 HP) are started _____ None of the listed here Star-delta starting By auto transformer starting Direct on line None of the listed here Star-delta starting By auto transformer starting Direct on line ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The maximum torque in an induction motor depends on All of the listed here Frequency Rotor inductive reactance Square of supply voltage All of the listed here Frequency Rotor inductive reactance Square of supply voltage ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the air gap between the rotor and stator of a 3-phase induction motor is increased, then_______ None of the listed here Leakage reactances are decreased Leakage reactances are increased No load current is decreased None of the listed here Leakage reactances are decreased Leakage reactances are increased No load current is decreased ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors At starting of a double squirrel cage induction motor _______ Outer cage winding has good pf Lower winding is more effective Lower cage winding has low reactance None of the listed here Outer cage winding has good pf Lower winding is more effective Lower cage winding has low reactance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors When a 3-phase induction motor is at no load, the slip is ______ 0.2 Practically zero 0.5 1 0.2 Practically zero 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If the supply voltage of a 3-phase induction motor is increased two times, then torque is _______ Increased four times Increased two times Decreased two times Decreased four times Increased four times Increased two times Decreased two times Decreased four times ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS