Transformers Which of the following transformer should never have the secondary open circuited while the primary is energised? Auto transformer Potential transformer Power transformer Current transformer Auto transformer Potential transformer Power transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers What is the approximate efficiency of large transformers? 65% 95 % 85% 75% 65% 95 % 85% 75% ANSWER DOWNLOAD EXAMIANS APP
Transformers The all day efficiency of a transformer is also called its Energy efficiency Current efficiency Power efficiency None of the listed here Energy efficiency Current efficiency Power efficiency None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The short circuit test helps us to find Iron loss at no load Cu loss at no load None of the listed here Cu loss at any desire load Iron loss at no load Cu loss at no load None of the listed here Cu loss at any desire load ANSWER DOWNLOAD EXAMIANS APP
Transformers The steel used for transformer core has High permeability All of the listed here High silicon content Low hysteresis loss High permeability All of the listed here High silicon content Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
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