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Electrical Machine Design MCQ Questions & Answers | Electrical Engineering

Learn Electrical Machine Design MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Electrical Machine Design MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-3 section-2

Each section contains 100 MCQs on Electrical Machine Design .
21
A Weston frequency meter is
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Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
22
A _____ device prevents the oscillation of the moving system and enables the latter to reach its final position quickly
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Answer & Solution
Answer: Option C
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23
In D.C. machines, the ________ in field mmf results in increase in size and cost of machines.
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Answer & Solution
Answer: Option A
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24
For measurement of mutual inductance we can use
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Answer & Solution
Answer: Option C
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25
In a low power factor wattmeter the compensating coil is connected
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Answer & Solution
Answer: Option C
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26
Which of the following devices may be used for extending the range of instruments ?
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Answer & Solution
Answer: Option E
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27
The operating voltage of a meggar is about
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Answer & Solution
Answer: Option D
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28
Which of the following brushes can be used for high values of current density ?
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Answer & Solution
Answer: Option A
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29
Which of the following is an advantage of hydrogen cooling?
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Answer & Solution
Answer: Option D
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30
The insulation between windings and grounded core and the insulation between the windings of the same phase is
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Answer & Solution
Answer: Option B
Solution:
The insulation between windings and the grounded core, as well as the insulation between the windings of the same phase, is referred to as major insulation.

Major insulation is designed to withstand higher voltage stresses as it separates the high-voltage components from the grounded core and ensures the safety and reliability of the electrical machine.

In contrast, minor insulation is used for low voltage insulation, such as between adjacent turns in a winding, where the voltage stress is comparatively low.

Therefore, Option B is the correct answer.