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THREE PHASE TRANSFORMER

Total questions: 10

Worksheet time: 4mins

Name
Class
Date
1.

HOW WILL YOU REDUCE CORE LOSS IN THE TRANSFORMER?

a)

By using silicon steel

b)

By reducing the size of winding

c)

By increasing the size of the winding

2.

WHICH IS VARIABLE LOSS IN THE TRANSFORMER?

a)

CORE LOSS

b)

COPPER LOSS

c)

STARY LOSS

3.

HOW WILL YOU REDUCE THE HYSTERESIS LOSS?

a)

By increasing the size of the winding

b)

By reducing the size of the winding

c)

By using thin silicon steel

4.

HOW WILL YOU FIND OUT THE CORE LOSS?

a)

BY CONDUCTING SHORT CIRCUIT TEST

b)

BY CONDUCTING OPEN CIRCUIT TEST

c)

BY MEASURING RESISTANCE OF THE WINDING

5.

THE TRANSFORMER IS A STATIC DEVICE.

a)

TRUE

b)

FALSE

6.

SHORT CIRCUIT TEST IS USED TO FIND THE --------LOSS IN THE TRANSFORMER.

a)

CORE LOSS

b)

COPPER LOSS

c)

EDDY CURRENT LOSS

7.

CORE LOSS IS A COMBINATION OF ------- AND ------ LOSSES OF TRANSFORMER.

a)

EDDY CURRENT LOSS

b)

HYSTERESIS LOSS

c)

COPPER LOSS

d)

DIELECTRIC LOSS

8.

DIFFERENCE BETWEEN INPUT POWER TO OUTPUT POWER IS KNOWN AS ---------------

a)

GAIN

b)

LOSS

c)

CORE LOSS

d)

COPPER LOSS

9.

THE RATIO OF OUTPUT POWER TO INPUT POWER IS KNOWN AS --------------------

a)

LOSS

b)

EFFICIENCY

c)

GAIN

10.

KVA STANDS FOR-----------------

a)

Kilo Volt Ampere

b)

Kilo Votage Ammeter

c)

Kilometer Volt Ammeter