Transformers A tap changer is used on a transformer for Adjustments in secondary voltage None of the listed here Adjustment in primary voltage Adjustment in both primary and secondary Adjustments in secondary voltage None of the listed here Adjustment in primary voltage Adjustment in both primary and secondary ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Current transformer Voltage transformer Auto transformer Power transformer Current transformer Voltage transformer Auto transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ None of the listed here Much longer magnetic path Shorter magnetic path Lesser average length per turn None of the listed here Much longer magnetic path Shorter magnetic path Lesser average length per turn ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ None of the listed here Purely rotating one Partly alternating and partly rotating Purely alternating one None of the listed here Purely rotating one Partly alternating and partly rotating Purely alternating one ANSWER DOWNLOAD EXAMIANS APP
Transformers The secondary of a current transformer is always short-circuited under operating conditions because it None of these is safe to human beings protects the primary circuit avoids core saturation and high voltage induction None of these is safe to human beings protects the primary circuit avoids core saturation and high voltage induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The approximate efficiency of a large transformer is 50% 95% 80% 65% 50% 95% 80% 65% ANSWER DOWNLOAD EXAMIANS APP
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