Transformers Which of the following insulating materials can withstand the highest temperature safely? Asbestos Mica Glass fibre Cellulose Asbestos Mica Glass fibre Cellulose ANSWER DOWNLOAD EXAMIANS APP
Transformers To step 110 V ac down to 20 V ac, the turns ratio must be 5.5 0.18 18 0.018 5.5 0.18 18 0.018 ANSWER DOWNLOAD EXAMIANS APP
Transformers A transformer transfers electrical energy from primary to secondary usually with a change in ______ Power Frequency Voltage Time period Power Frequency Voltage Time period ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ Has no losses and leakage reactance Does not work Has same number of primary and secondary turns None of the listed here Has no losses and leakage reactance Does not work Has same number of primary and secondary turns None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of cooling a power transformer is air blast cooling oil cooling natural air cooling Any of these air blast cooling oil cooling natural air cooling Any of these ANSWER DOWNLOAD EXAMIANS APP
Transformers The leakage flux in a transformer depends upon load current and voltage load current load current, voltage and frequency load current, voltage, frequency and power factor load current and voltage load current load current, voltage and frequency load current, voltage, frequency and power factor ANSWER DOWNLOAD EXAMIANS APP
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