Transformers Transformer having ratings less than 5kVA are generally ______ Natural air cooled Water cooled None of the listed here Oil cooled Natural air cooled Water cooled None of the listed here Oil cooled ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Eddy current is increased Hysteresis loss is decreased Magnetising current is greatly increased Reluctance of magnetic path is decreased Eddy current is increased Hysteresis loss is decreased Magnetising current is greatly increased Reluctance of magnetic path is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a transformer has 110 V ac across it. What is the secondary voltage if the turns ratio is 8? 8,800 V 8.8 V 880 V 88 V 8,800 V 8.8 V 880 V 88 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The flux in the core of a single phase transformer is _____ Partly alternating and partly rotating None of the listed here Purely alternating one Purely rotating one Partly alternating and partly rotating None of the listed here Purely alternating one Purely rotating one ANSWER DOWNLOAD EXAMIANS APP
Transformers The primary winding of a power transformer should always be switched open fused shorted switched open fused shorted ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 0.018 5.5 18 0.18 0.018 5.5 18 0.18 ANSWER DOWNLOAD EXAMIANS APP
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