ELECTRICAL MACHINE MCQ

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ELECTRICAL MACHINE MCQ_12

1-PHASE TRANSFORMER_01

Q.01 A _____is a static device that transfer electric energy from one circuit to another circuit without change frequency.

1 point

solid state device

power electronics device

transformer

all of the above

Clear selection

Q.02 A transformer is

1 point

static electromagnetic device

static electric device

static magnetic device

solid state device

Clear selection

Q.03 A transformer consisting of two of more windings which is link with a

1 point

separate magnetic field

common magnetic field

electric field

none of the above

Clear selection

Q.04 A transformer consisting of two or more

1 point

stationary magnetic circuits

only one magnetic circuit

only one electric circuit

Clear selection

Q.05 In transformer, why two or more stationary electric circuits interlinked by a common magnetic circuit?

1 point

for the purpose of change in frequency

for the purpose change in magnetic field

the purpose of transferring electrical energy between them

for the purpose of transferring mechanical energy between them

Clear selection

Q.06 A transformer is work on the principle of

1 point

electrostatic

electromagnetic induction

electrolysis

all of the above

Clear selection

Q.07 Principle of transformer is based on

1 point

Faraday's low of electrolysis

Faraday's low of induction

Fleming’s rule

Ampere’s circuital low

Clear selection

Q.08 The basic construction of transformer requires

1 point

moving parts

no moving parts

minimum amount of repairs and maintenance

Both B and C

Clear selection

Q.09 A transformer can

1 point

change the voltage level

change the frequency

change the power

all of the above

Clear selection

Q.10 The major parts of transformer

1 point

Primary winding

magnetic core

Secondary winding

all of the above

Clear selection

Q.11 The winding which is connected to the ac supply is called___

1 point

secondary winding

field winding

primary winding

excitation

Clear selection

Q.12 The winding at which load is connected in transformer is called __

1 point

Excitation winding

secondary winding

primary tertiary winding

field winding

Clear selection

Q.13 The basic working principle of transformer is on basis of

1 point

dynamically induced emf

statically induced emf

electrolysis

all of the above

Clear selection

Q.14 The alternating flux link primary winding to secondary winding, the emf is induced in it is called__

1 point

statically induced emf

dynamically induced emf

self induced emf

mutually induced emf

Clear selection

Q.15 A transformer works on

1 point

ac only

dc only

both ac as well dc

none of the above

Clear selection

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