Transformers Which of the following property is not necessarily desirable in the material for transformer core? High permeability Low hysteresis loss High thermal conductivity Mechanical strength High permeability Low hysteresis loss High thermal conductivity Mechanical strength ANSWER DOWNLOAD EXAMIANS APP
Transformers For the parallel operation of single phase transformers it is necessary that they should have same kVA rating same number of turns on the secondary side. same polarity same efficiency same kVA rating same number of turns on the secondary side. same polarity same efficiency ANSWER DOWNLOAD EXAMIANS APP
Transformers In an auto transformer, the primary and secondary are _____ coupled. Only electrically Magnetically as well as electrically Only magnetically None of the listed here Only electrically Magnetically as well as electrically Only magnetically None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The secondary of a current transformer is always short-circuited under operating conditions because it None of these protects the primary circuit is safe to human beings avoids core saturation and high voltage induction None of these protects the primary circuit is safe to human beings avoids core saturation and high voltage induction ANSWER DOWNLOAD EXAMIANS APP
Transformers A shell-type transformer has negligibly hysteresis losses high eddy current losses reduced magnetic leakage None of these negligibly hysteresis losses high eddy current losses reduced magnetic leakage None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer is an efficient device because Uses inductive coupling Uses capacitive coupling Uses electric coupling A static device Uses inductive coupling Uses capacitive coupling Uses electric coupling A static device ANSWER DOWNLOAD EXAMIANS APP
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