Transformers How are transformers generally cooled for installations rated at less than 5kVA ? None of the listed here Water cooled Air cooled Oil cooled None of the listed here Water cooled Air cooled Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 50 per cent 98 per cent 25 per cent 100 per cent 50 per cent 98 per cent 25 per cent 100 per cent 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 Sumpner's test is conducted on transformers to determine None of these temperature all-day efficiency stray losses None of these temperature all-day efficiency stray losses ANSWER DOWNLOAD EXAMIANS APP
Transformers In which of the following transformer part of primary winding also serves as the secondary winding? Potential transformer Auto transformer Current transformer Step-up transformer Potential transformer Auto transformer Current transformer Step-up transformer 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 15 A 20 A 5 A 10 A 15 A 20 A 5 A 10 A ANSWER DOWNLOAD EXAMIANS APP
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