Transformers The open circuit test on a transformer gives _______ Total losses Copper losses Friction losses Iron losses Total losses Copper losses Friction losses Iron losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following 3 phase connections of transformer create disturbances in communication systems Star/Delta Star/Star Delta/Delta Delta/Star Star/Delta Star/Star Delta/Delta Delta/Star ANSWER DOWNLOAD EXAMIANS APP
Transformers The voltage transformation ratio of a transformer is equal to the ratio of secondary terminal voltage to primary applied voltage primary turns to secondary turns secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current secondary terminal voltage to primary applied voltage primary turns to secondary turns secondary induced e.m.f. to primary induced e.m.f. secondary current to primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around no-load 10% overload half-load near full-load no-load 10% overload half-load near full-load ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Air motor Induction motor Shunt motor Synchronous motor Air motor Induction motor Shunt motor Synchronous motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The temperature rise of transformer is directly proportional to _______ None of the listed here Apparent power Leakage reactance Reactive power None of the listed here Apparent power Leakage reactance Reactive power ANSWER DOWNLOAD EXAMIANS APP