Transformers If a transformer has 50 turns in the primary winding and 10 turns in the secondary winding, what is the reflective resistance if the secondary load resistance is 250 ? 62500 Ω 250 Ω 25 Ω 6250 Ω 62500 Ω 250 Ω 25 Ω 6250 Ω ANSWER DOWNLOAD EXAMIANS APP
Transformers In an auto transformer, the primary and secondary are _____ coupled. Only magnetically Only electrically None of the listed here Magnetically as well as electrically Only magnetically Only electrically None of the listed here Magnetically as well as electrically ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Gases Odour Sludge Moisture Gases Odour Sludge Moisture ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer is always made on ______ None of the listed here High voltage winding Low voltage winding Either low or high voltage winding None of the listed here High voltage winding Low voltage winding Either low or high voltage winding ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Boo Hum Magnetostriction Zoom Boo Hum Magnetostriction Zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means starting the motor on load which is more than the rated load pulling the motor directly on line without a starter interchanging two supply phases for quick stopping locking of rotor due to harmonics starting the motor on load which is more than the rated load pulling the motor directly on line without a starter interchanging two supply phases for quick stopping locking of rotor due to harmonics ANSWER DOWNLOAD EXAMIANS APP
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