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DC Generators - Interview Questions and Answers

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91. Wave winding is composed of
A. any even number of conductors
B. any odd number of conductors
C. that even number which is exact multiple of poles + 2
D. that even number which is exact multiple of poles
Explanation:
92. Following energized winding of a D.C. machine should not be opened as it would produce high inductive voltage which may be dangerous to personnel and may cause its own insulation failure.
A. Series field
B. Compensating field
C. Inter pole field
D. Shunt field
Explanation:
93. Armature reaction in a generator results in
A. demagnetisation of leading pole tip and magnetisation of trailing pole tip
B. demagnetisation of trailing pole tip and magnetisation of leading pole tip
C. damagnetising the centre of all poles
D. magnetising the centre of all poles
Explanation:
94. Which of the following D.C. generators will be in a position to build up without any residual magnetism in the poles ?
A. Series generator
B. Shunt generator
C. Compound generator
D. None of the above
Explanation:
95. Lap winding is composed of
A. any even number of conductors
B. any odd number of conductors
C. that even number which is exact multiple of poles + 2
D. that even number which is exact multiple of poles
Explanation:
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