Transformers The maximum efficiency of a distribution transformer is at 80% full load at no load at 50% full load at full load at 80% full load at no load at 50% full load at full load ANSWER DOWNLOAD EXAMIANS APP
Transformers When secondary of a current transformer is open-circuited its iron core will be hot because primary will carry heavy current cool as there is no secondary current none of above will happen hot because of heavy iron losses taking place in it due to high flux density hot because primary will carry heavy current cool as there is no secondary current none of above will happen hot because of heavy iron losses taking place in it due to high flux density ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ 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 Has no losses and leakage reactance Does not work Has same number of primary and secondary turns ANSWER DOWNLOAD EXAMIANS APP
Transformers When load on a transformer is decreased, ______loss is decreased Copper Eddy current Hysteresis Friction Copper Eddy current Hysteresis Friction ANSWER DOWNLOAD EXAMIANS APP
Transformers The maximum load that a power transformer can carry is limited by its voltage ratio copper loss temperature rise dielectric strength of oil voltage ratio copper loss temperature rise dielectric strength of oil ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 0.25 kVA 8 kVA 16 kVA 4 kVA 0.25 kVA 8 kVA 16 kVA 4 kVA ANSWER DOWNLOAD EXAMIANS APP
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