Transformers Which motor is preferred for use in mines where explosive gases exist? Shunt motor Synchronous motor Induction motor Air motor Shunt motor Synchronous motor Induction motor Air motor ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 8,800 V 880 V 8.8 V 88 V 8,800 V 880 V 8.8 V 88 V ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ None of the listed here Is increased Is decreased Remians unchanged None of the listed here Is increased Is decreased Remians unchanged ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load on it increases load on it decreases None of these load remains constant load on it increases load on it decreases None of these load remains constant ANSWER DOWNLOAD EXAMIANS APP
Transformers Two things which are same for primary and secondary of transformer are ______ None of the listed here Ampere turns and voltage per turns Currents and induced voltages Resistance and leakage reactances None of the listed here Ampere turns and voltage per turns Currents and induced voltages Resistance and leakage reactances ANSWER DOWNLOAD EXAMIANS APP
Transformers A step up transformer increases Frequency Voltage Power Current Frequency Voltage Power Current ANSWER DOWNLOAD EXAMIANS APP