Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Oil cooled Air cooled None of the listed here Water cooled Oil cooled Air cooled None of the listed here Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal Copper loss is equal to constant loss Leakage reactance of the two winding None of the listed here Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 88 V 880 V 8,800 V 8.8 V 88 V 880 V 8,800 V 8.8 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The power transformer is a constant Main flux device Voltage device Current device Power device Main flux device Voltage device Current device Power device ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Horn gaps Thermal overload relays Conservator Breather Horn gaps Thermal overload relays Conservator ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its None of the listed here Energy efficiency Power efficiency Current efficiency None of the listed here Energy efficiency Power efficiency Current efficiency ANSWER DOWNLOAD EXAMIANS APP
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