Three Phase Induction Motors An induction motor is so called because its operation depends on Eddy currents Self induction Hysteresis Mutual induction Eddy currents Self induction Hysteresis Mutual induction ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The condition of induction motor at no load resemble those of a transformer whose secondady is _______ None of the listed here Supplying a variable resistive load Short-circuited Open circuited None of the listed here Supplying a variable resistive load Short-circuited Open circuited ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The injected e.m.f. in the rotor of induction motor must have High value for the satisfactory speed control The same phase as the rotor e.m.f. Zero frequency The same frequency as the slip frequency High value for the satisfactory speed control The same phase as the rotor e.m.f. Zero frequency The same frequency as the slip frequency ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors The rotor winding of a 3phase wound rotor induction motor is generally _______ connected. Delta Star None of the listed here Partly star and partly delta Delta Star None of the listed here Partly star and partly delta ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors In induction motor, percentage slip depends on None of these Supply frequency Supply voltage Copper losses in motor None of these Supply frequency Supply voltage Copper losses in motor ANSWER DOWNLOAD EXAMIANS APP
Three Phase Induction Motors If a 3 phase induction motor is running at a slip S, then approximate efficiency of the motor is ______ 1-S 1+S S-1 None of the listed here 1-S 1+S S-1 None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS