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ITI
Electrician
Electrician Set-2
Transformer
15

Transformer MCQ with Answers

15) Which power loss is assessed by open-circuit test on transformer?

Hysteresis loss only

Eddy current loss only

Copper loss

Core loss

Answer is:

Core loss

Transformer MCQ with Answers

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Related Transformer MCQ with Answers

16) Which is determined by the crackle test of transformer oil?

Acidity

Moisture

Viscosity

Dielectric strength

Answer is:

Moisture

17) Which material is used to make core of power transformer?

Soft iron

Rolled steel

Copper alloy

Cold rolled grain oriented

Answer is:

Cold rolled grain oriented

18) What is the purpose of providing explosion vent in a power transformer?

Air releasing

Heat releasing

Pressure releasing

Moisture releasing

Answer is:

Pressure releasing

19) What is the function of buchholz relay in power transformer?

Protection from high temperature

Protection from moisture entering in oil

Protection from pressure loading in tank

Protection from both overloading and short circuit

Answer is:

Protection from both overloading and short circuit

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