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Electrician
Electrician Set-1
Alternators
30

Alternators MCQ - Electrician (Set-1) with Answers

30) The armature reaction effect in a synchronous machine depends on

load current

power factor of the load

speed of the machine

both 1) load current and 2) power factor of the load

Answer is:

both 1) load current and 2) power factor of the load

Alternators MCQ - Electrician (Set-1) with Answers

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

31) Skew of rotor bar eliminates

the effect of space harmonics

the entire effect of crawling

magnetic noise

variation due to unequal force developed on rotor

Answer is:

the effect of space harmonics

32) The alternators are rated as :

kW

kVAR

kVA

kWh

Answer is:

kVA

33) The generated frequency in India is

F = 65 Hz

F = 60 Hz

F = 55 Hz

F = 50 Hz

Answer is:

F = 50 Hz

34) A10 pole alternator rotates at a constant speed of 1200 rpm. The periodic time of voltage in seconds per cycle will be

0.01

0.02

0.04

0.08

Answer is:

0.01

Alternators MCQ - Electrician (Set-1) with Answers

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