Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Voltage transformer Auto transformer Current transformer Power transformer Voltage transformer Auto transformer Current transformer Power transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiencies of transformers compared with that of electric motors of the same power are somewhat smaller much smaller much higher about the same somewhat smaller much smaller much higher about the same ANSWER DOWNLOAD EXAMIANS APP
Transformers An open-circuit test on a transformer is conducted primarily to measure core loss insulation resistance copper loss total loss core loss insulation resistance copper loss total loss ANSWER DOWNLOAD EXAMIANS APP
Transformers The eddy current loss in a transformer is directly proportional to _______. Thickness of core lamination Square of thickness of core lamination The flux density in the core The supply frequency Thickness of core lamination Square of thickness of core lamination The flux density in the core The supply frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers Transformer breaths in when load remains constant load on it increases None of these load on it decreases load remains constant load on it increases None of these load on it decreases ANSWER DOWNLOAD EXAMIANS APP
Transformers Short circuit test of a transformer helps us to find its Full load cu loss Iron loss Cu loss at no load None of the listed here Full load cu loss Iron loss Cu loss at no load None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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