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DC Generators

DC Generators
Permeance is the reciprocal of

Flux density
Reluctance
Ampere turns
Resistance

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DC Generators
Which of the following components of a D.C, generator plays vital role for providing direct current of a D.C. generator?

Equalizer rings
Commutator
Eye bolt
Dummy coils

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DC Generators
The number of parallel paths in a simplex lap winding is equal to

None of the listed here
Number of pairs of poles
Number of poles
2

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DC Generators
The bearings used to support the rotor shafts are generally

Needle bearings
Bush bearings
Ball bearings
Magnetic bearings

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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
About the same as
Less than
More than

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DC Generators
For a D.C. machines laboratory following type of D.C. supply will be suitable

Rotary converter
Synchronous motor D.C. generator set
Induction motor D.C. generator set
Mercury are rectifier

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