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Quiz 1 CP23

Authored by BENNY MATHEW

Other

Professional Development

Used 8+ times

 Quiz 1 CP23
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49 questions

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1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

The working principle of a transformer is based on:

Ohm's Law

Electromagnetic induction

Coulomb's Law

Kirchhoff's Law

2.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

In a transformer, energy is transferred from primary to secondary through:

Electric conduction

Magnetic coupling

Mechanical coupling

Inductive coupling

3.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

Which part of the transformer provides mechanical support to the winding?

Core

Insulation

Tank

Bushings

4.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

The type of transformer used for measuring current in high-voltage circuits is:

Power transformer

Distribution transformer

Current transformer

Potential transformer

5.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

The EMF equation of a transformer is:

E1= 4.44 f N1 ᶲm

E2 = 4.44 f N2 Bm

E1 = 4.44 f N2 Bm A

E2/E1 = N1/N2

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

The induced EMF in the primary and secondary windings of a transformer depends on:

Core material only

Number of turns only

Magnetic flux and number of turns

Voltage applied

7.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

The voltage transformation ratio (K) of a transformer is defined as:

V2/V1

N2/N1

E2/E1

All of the above

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