Transformers If a transformer core has air gaps, then, _________ Reluctance of magnetic path is decreased Hysteresis loss is decreased Eddy current is increased Magnetising current is greatly increased Reluctance of magnetic path is decreased Hysteresis loss is decreased Eddy current is increased Magnetising current is greatly increased ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum efficiency of a distribution transformer is at full load at 80% full load at 50% full load at no load at full load at 80% full load at 50% full load at no load ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Directly proportional to supply frequency Inversely proportional to supply frequency Inversely proportional to primary voltage None of the listed here Directly proportional to supply frequency Inversely proportional to supply frequency Inversely proportional to primary voltage None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Auto transformer Power transformer Voltage transformer Current transformer Auto transformer Power transformer Voltage transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be open fused switched shorted open fused switched shorted ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around half-load 10% overload near full-load no-load half-load 10% overload near full-load no-load ANSWER DOWNLOAD EXAMIANS APP
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