Transformers Natural oil cooling is used for transformers up to a rating of 1000 kVA 500 kVA 250 kVA 3000 kVA 1000 kVA 500 kVA 250 kVA 3000 kVA ANSWER DOWNLOAD EXAMIANS APP
Transformers An isolation transformer has primary to secondady turns ratio of 2:1 1:2 1:1 Can be any ratio 2:1 1:2 1:1 Can be any ratio ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Water cooled Oil cooled None of the listed here Natural air cooled Water cooled Oil cooled None of the listed here Natural air cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 . What is the approximate voltage across the load? 73 V 7.3 V 880 V 88 V 73 V 7.3 V 880 V 88 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The power efficiency of a lightning transformer is always ______its all day efficiency. Higher than Less than None of the listed here Equal to Higher than Less than None of the listed here Equal to ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Iron losses Leakage reactance Copper loss Eddy current loss Iron losses Leakage reactance Copper loss Eddy current loss ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS