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DC Generators

DC Generators
An 8 pole duplex lap winding will have ______ parallel paths.

16
32
8
4

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DC Generators
In a D.C. machine stray loss is the sum of

Armature copper loss and iron loss
Total copper loss and mechanical loss
Iron loss and mechanical loss
Shunt field copper loss and mechanical loss

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DC Generators
The yoke of a dc machine is made of

Aluminum
Silicon steel
Cast steel
Soft iron

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DC Generators
In a simplex wave winding, the number of parallel paths is equal to _____

2
Number of pairs of poles
None of the listed here
Numbers of poles in the machine

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DC Generators
A 4-pole , lap wound dc shunt generator has an armature winding consisting of 220 turns each of 0.004 Ω. The armature resistance is

0.025 Ω
0.055 Ω
1 Ω
0.5 Ω

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DC Generators
The current in armature conductors of a dc machine is ______

Pulsating dc
Ac
Pure dc plus pulsating dc
Pure dc

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