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 88 V 8.8 V 880 V 8,800 V 88 V 8.8 V 880 V ANSWER DOWNLOAD EXAMIANS APP
Transformers No-load on a transformer is carried out to determine magnetising current and loss magnetising current copper loss efficiency of the transformer magnetising current and loss magnetising current copper loss efficiency of the transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Odour Moisture Sludge Gases Odour Moisture Sludge Gases ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a fitting on a transformer? Breather Commutator Conservator Buchholz's relay Breather Commutator Conservator Buchholz's relay ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is the main advantage of an auto-transformer over a two winding transformer? Copper losses are negligible Eddy losses are totally eliminated Hysteresis losses are reduced Saving in winding material Copper losses are negligible Eddy losses are totally eliminated Hysteresis losses are reduced Saving in winding material ANSWER DOWNLOAD EXAMIANS APP
Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 5 A 10 A 20 A 15 A 5 A 10 A 20 A 15 A ANSWER DOWNLOAD EXAMIANS APP
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