Transformers The no load primary current is about ______of full load primary current. 30-40% 15-30% Above 40% 3-5% 30-40% 15-30% Above 40% 3-5% ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 0.85 V 1 V 0 V 1.7 V 0.85 V 1 V 0 V 1.7 V ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Thermal overload relays Conservator Breather Horn gaps Thermal overload relays Conservator Breather Horn gaps ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Mutual induction Dynamic induction Static induction Self induction Mutual induction Dynamic induction Static induction Self induction ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is natural air cooling oil cooling Any of these air blast cooling natural air cooling oil cooling Any of these air blast cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer oil must be free from Moisture Sludge Gases Odour Moisture Sludge Gases Odour ANSWER DOWNLOAD EXAMIANS APP
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