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DC Generators

DC Generators
The critical resistance of the D.C. generator is the resistance of

Field
Armature
Brushes
Load

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DC Generators
The commutator of a dc generator acts as

An amplifier
None of the listed here
A load
A rectifier

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

32
4
8
16

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DC Generators
The main drawback of a dc shunt generator is that

Shunt field circuit has high resistance
Terminal voltage drops considerably
Generated voltage is small
It is expensive

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DC Generators
The main factor which leads to unstable parallel operation of flat and over compounded generators is

unequal series field resistances
unequal speed regulation of their primemovers
unequal number of turns in their series field windings
their rising voltage characteristics

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

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

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