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DC Generators

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

32
4
16
8

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DC Generators
For the same rating, a dc machine has_______ an ac machines.

Less weight than
The same weight as
More weight than
None of the listed here

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DC Generators
The no load voltage of a generator is 240 V and rated load voltage is 220 V. The voltage regulation of the generator is

9.1%
4.5%
2.8%
11.3%

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DC Generators
The physical size of 100 kW, 2000 rpm generator is _____ that of 10 kW, 200 rpm generator.

Less than
More than
About the same as
None of the listed here

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DC Generators
Brushes of D.C. machines are made of

Hard copper
Carbon
All of above
Soft copper

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DC Generators
Laminations of core are generally made of

Stainless steel
Silicon steel
Carbon
Case iron

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