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Electrician
Electrician Set-1
Alternators
42

Alternators MCQ - Electrician (Set-1) with Answers

42) A 3-phase, delta connected alternator having a rotating armature will have :

2 slip rings

3 slip rings

4 slip rings

6 slip rings

Answer is:

3 slip rings

Alternators MCQ - Electrician (Set-1) with Answers

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Related Alternators MCQ - Electrician (Set-1) with Answers

43) A 3-phase, star connected alternator having a rotating armature will have 4 slip rings but 3-phase, delta connected alternator having armature will have

6 slip rings

4 slip rings

3 slip rings

2 slip rings

Answer is:

3 slip rings

44) Which instrument is used to indicate the correct time for synchronization of two alternators ?

phase sequence meter

synchroscope

power factor meter

tachometer

Answer is:

synchroscope

45) The function of synchroscope is to :

indicate the correct instant of synchronizing two alternators

connect the incoming alternator to the bus bar

adjust the frequency of incoming alternator

indicate the correct phase sequence of the incoming alternator and bus bar

Answer is:

indicate the correct instant of synchronizing two alternators

46) The reason for the stator core of an alternator is made up of laminated sheets is to

increase the eddy current losses

reduce the eddy current losses

increase the magnetic flux

decrease the speed of the rotor

Answer is:

reduce the eddy current losses

Alternators MCQ - Electrician (Set-1) with Answers

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