Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Magnetostriction Boo Hum Zoom Magnetostriction Boo Hum Zoom ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 95 % 85% 65% 75% 95 % 85% 65% 75% ANSWER DOWNLOAD EXAMIANS APP
Transformers The highest voltage for transmitting electrical power in india is 400 kV 66 kV 33 kV 132 kV 400 kV 66 kV 33 kV 132 kV ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Power transformer Auto transformer Potential transformer Current transformer Power transformer Auto transformer Potential transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers When the secondary of a transformer is short circuited, the primary inductance _______ Remians unchanged None of the listed here Is decreased Is increased Remians unchanged None of the listed here Is decreased Is increased 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 s.N. (Ns-l)s Ns (l-s)Ns s.N. (Ns-l)s Ns (l-s)Ns ANSWER DOWNLOAD EXAMIANS APP
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