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What you know about Transformers

Authored by Ashok Kumar

Professional Development

Professional Development

Used 8+ times

What you know about Transformers
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following does not change in a Transformer ??

Current

Voltage

Frequency

All of these

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a Transformer the energy is conveyed from Primary to Secondary

Through the cooling coil

Through Air

By the Flux

None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A transformer core is laminated to

Reduce hysteresis loss

Reduce eddy current losses

Reduce copper losses

All of these.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The no-load current drawn by transformer is usually what percent of the full load current ??

0.2 to 0.5 %

2 to 5 %

12 to 15 %

20 to 30 %

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is not a part of transformer installation.

Conservator

Breather

Buchholz relay

Exciter

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A transformer transforms ?

Voltage

Current

Power

Frequency

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A common method of cooling a power transformer is ??

Natural Air Cooling

Oil Cooling

Air Blast Cooling

All of these

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