TRANSFORMERS

TRANSFORMERS

University

60 Qs

quiz-placeholder

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TRANSFORMERS

TRANSFORMERS

Assessment

Quiz

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University

Practice Problem

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Dorothy Tolentino

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60 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An static device that transfers AC electrical energy from one circuit to another without change in frequency.

Inverter

Oscillator

Transducer

Transformer

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The working principle of a transformer is __________.

Self-induction

Static induction

Mutual induction

Dynamic induction

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The primary and secondary windings of a transformer are __________ coupled.

Physically

Electrically

Magnetically

Electromagnetically

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Transformer is used to change the values of __________.

Power

Voltage

Frequency

Power factor

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Transformer core are laminated in order to reduce __________.

a. Copper loss

b. Hysteresis loss

c. Eddy current loss

d. Both A and B

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Transformer cores are made up of __________.

Manganese steel

Silicon steel

Carbon steel

Cobalt

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The steel for construction of transformer core must have __________.

High permeability and high hysteresis

Low permeability and low hysteresis

High permeability and low hysteresis

Low permeability and high hysteresis

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