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DC Generators

DC Generators
The armature of a dc machine is made of ______

Wrought iron
Cast steel
Soft iron
Silocon steel

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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
1 Ω
0.055 Ω
0.5 Ω

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DC Generators
A 4-pole dc machine has _____ magnetic circuits.

2
4
6
8

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DC Generators
In a short shunt compound wound generator, the shunt field is connected in parallel with

Series field
Series combination of armature and series field
Parallel combination of armature and series field
Armature

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DC Generators
Number of tapings for each equalizer ring is equal to

Number of poles
Number of commutator segments
Number of pole pairs
Number of parallel paths

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DC Generators
The armature winding of a dc machine is place on the rotor to ______

Reduce armature reaction
Facilitate commutation
Reduce losses
Save iron

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