Transformers Natural air cooling is generally restricted for transformers up to 1.5 MVA 15 MVA 5 MVA 50 MVA 1.5 MVA 15 MVA 5 MVA 50 MVA ANSWER DOWNLOAD EXAMIANS APP
Transformers When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is 120 V 2,400 V 12 V 240 V 120 V 2,400 V 12 V 240 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Which motor is preferred for use in mines where explosive gases exist? Shunt motor Air motor Synchronous motor Induction motor Shunt motor Air motor Synchronous motor Induction motor ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on None of the listed here AC as well as DC Ac only Dc only None of the listed here AC as well as DC Ac only Dc only ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 65% 85% 75% 95 % 65% 85% 75% 95 % ANSWER DOWNLOAD EXAMIANS APP
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