Transformers Leakage flux in a transformer occurs because Iron core has high permeability Transformer is not an efficient device Applied voltage is sinusoidal Air is not a good magnetic insulator Iron core has high permeability Transformer is not an efficient device Applied voltage is sinusoidal Air is not a good magnetic insulator ANSWER DOWNLOAD EXAMIANS APP
Transformers The transformer that should never the secondary open circuited when primary is energised is _______ Power transformer Auto transformer Voltage transformer Current transformer Power transformer Auto transformer Voltage transformer Current transformer ANSWER DOWNLOAD EXAMIANS APP
Transformers Which of the following acts as a protection against high voltage surges due to lightning and switching? Breather Horn gaps Thermal overload relays Conservator Breather Horn gaps Thermal overload relays Conservator 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? 8.8 V 8,800 V 880 V 88 V 8.8 V 8,800 V 880 V 88 V ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum flux produced in the core of a transformer is ______ Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency Inversely proportional to primary voltage Inversely proportional to supply frequency None of the listed here Directly proportional to supply frequency ANSWER DOWNLOAD EXAMIANS APP
Transformers The turns ratio required to match an 80 source to a 320 load is 80 4 20 2 80 4 20 2 ANSWER DOWNLOAD EXAMIANS APP
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