Transformers Which of the following insulating materials can withstand the highest temperature safely? Mica Cellulose Asbestos Glass fibre Mica Cellulose Asbestos Glass fibre ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer having ratings less than 5kVA are generally ______ Natural air cooled None of the listed here Oil cooled Water cooled Natural air cooled None of the listed here Oil cooled Water cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers In Ns is the synchronous speed and s the slip, then actual running speed of an induction motor will be Ns s.N. (l-s)Ns (Ns-l)s Ns s.N. (l-s)Ns (Ns-l)s ANSWER DOWNLOAD EXAMIANS APP
Transformers Losses which occur in rotating electric machines and do not occur in trans formers are friction and windage losses hysteresis and eddy current losses copper losses magnetic losses friction and windage losses hysteresis and eddy current losses copper losses magnetic losses ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer is generally suitable for ______ High voltage and high output High voltage and small output None of the listed here Low voltage and high output High voltage and high output High voltage and small output None of the listed here Low voltage and high output ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer will be maximum when ______ None of the listed here Leakage reactance of the two winding Copper loss is equal to constant loss Resistance of the two winding are equal None of the listed here Leakage reactance of the two winding Copper loss is equal to constant loss Resistance of the two winding are equal ANSWER DOWNLOAD EXAMIANS APP
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