Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Power transformer Current transformer Auto transformer Potential transformer Power transformer Current transformer Auto transformer Potential transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers In a step-down transformer, there is a change of 15 A in the load current. This results in change of supply current of None of these more than 15 A less than 15 A 15 A None of these more than 15 A less than 15 A 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Resistance of the two winding are equal Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here Resistance of the two winding are equal Leakage reactance of the two winding Copper loss is equal to constant loss None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following is not a fitting on a transformer? Buchholz's relay Commutator Breather Conservator Buchholz's relay Commutator Breather Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will work on Dc only AC as well as DC Ac only None of the listed here Dc only AC as well as DC Ac only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer will have zero efficiency at None of the listed here No load Half full load Full load None of the listed here No load Half full load Full load ANSWER DOWNLOAD EXAMIANS APP
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