Transformers An isolation transformer has primary to secondady turns ratio of 1:1 1:2 2:1 Can be any ratio 1:1 1:2 2:1 Can be any ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformers to determine stray losses all-day efficiency None of these temperature stray losses all-day efficiency None of these temperature ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Gases Sludge Moisture Odour Gases Sludge Moisture Odour ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0 V 0.75 V 48 V 6 V 0 V 0.75 V 48 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The open circuit test on a transformer gives _______ Iron losses Total losses Friction losses Copper losses Iron losses Total losses Friction losses Copper losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer, leakage flux Produces mutually induced emf Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Is negligible at full load Produces mutually induced emf Helps in transfer of energy Is minimised by interleaving the primary and secondary windings Is negligible at full load ANSWER DOWNLOAD EXAMIANS APP
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