GENERATION AND TRANSMISSION - Practice Mode

1) Which part of transformer is used to compensate the voltage drop to consumer receiving from generating station?

Iron core Secondary winding Primary winding Tap changer

Correct Answer: Tap changer

2) Which condition the efficiency of a transformer is maximum?

Copper is loss is less than iron loss Copper loss = iron loss Copper loss is more than iron loss Copper loss is 1/2 times of iron loss

Correct Answer: Copper loss = iron loss

3) Which loss is a variable loss?

Copper loss Iron loss Friction loss Windage loss

Correct Answer: Copper loss

4) Which loss is determined by conducting short circuit test?

Friction loss Windage loss Iron loss Copper loss

Correct Answer: Copper loss

5) Which loss is constant for no load and all load conditions?

Windage loss Iron loss Copper loss Friction loss

Correct Answer: Iron loss

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