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Electrician
Electrician Set-1
Alternators
7

Alternators MCQ - Electrician (Set-1) with Answers

7) Single phase portable generators are generally made in the range of :

5000 kVA

1000 kVA

100 kVA

5 kVA

Answer is:

5 kVA

Alternators MCQ - Electrician (Set-1) with Answers

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

8) An alternator supplies electric power to various kinds of loads of a factory. If the phase sequence of the alternator is changed, it will affect the :

3-phase heating circuits

3-phase motor circuits

single phase motor circuits

lighting circuits

Answer is:

3-phase motor circuits

9) The values of pitch factor and distribution factor for an alternator are 0.9 and 0.8 respectively. This will develop an e.m.f. lesser than an alternator having full-pitch coil and concentrated winding by :

0.7

0.72

0.88

0.92

Answer is:

0.72

10) The number of slip-rings used in a 3-phase, star connected alternator having a rotating armature will be :

2

3

4

6

Answer is:

4

11) The pitch factor is defined as the ratio of the e.m.fs. of the :

full-pitch winding to short-pitch winding

short-pitch coil to full-pitch coil

full-pitch winding to concentrated winding

distributed winding to full-pitch winding

Answer is:

short-pitch coil to full-pitch coil

Alternators MCQ - Electrician (Set-1) with Answers

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