Transformers The temperature rise of transformer is directly proportional to _______ None of the listed here Reactive power Apparent power Leakage reactance None of the listed here Reactive power Apparent power Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because copper loss becomes high in proportion to the output iron loss is increased considerably voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input copper loss becomes high in proportion to the output iron loss is increased considerably voltage drop both in primary and secondary becomes large secondary output is much less as compared to primary input ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Is increased None of the listed here Remians unchanged Is decreased Is increased None of the listed here Remians unchanged Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has None of these reduced magnetic leakage negligibly hysteresis losses high eddy current losses None of these reduced magnetic leakage negligibly hysteresis losses high eddy current losses ANSWER DOWNLOAD EXAMIANS APP
Transformers Sumpner's test is conducted on transformer to determine All day efficiency None of the listed here Stray losses Temperature All day efficiency None of the listed here Stray losses Temperature ANSWER DOWNLOAD EXAMIANS APP
Transformers How are transformers generally cooled for installations rated at less than 5kVA ? Water cooled Oil cooled None of the listed here Air cooled Water cooled Oil cooled None of the listed here Air cooled ANSWER DOWNLOAD EXAMIANS APP
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