62) When two transformers are operating in parallel, they will share the load depending upon their

Answer is:

per unit impedance

Transformers MCQ - Electrician (Set-1) with Answers

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63) The Transformers are rated in

Answer is:

kVA

Explanation:

The copper and iron are the two type of losses occur in the transformer. The copper loss depends on the current (ampere) flows through the windings of the transformer while the iron loss depends on the voltage (volts). i.e., the rating of the transformer is in kVA.

64) The colour of silica gel in dry condition is :

Answer is:

blue

65) What is the material used inside the breather to prevent moisture entering the transformer ?

Answer is:

silica gel

66) Efficiency of transformers is determined by knowing its input and output power. Unit of power used for this purpose is kVA/kW. What is the unit used for input and output when calculating the all day efficiency ?

Answer is:

kWh

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