DC GENERATORS QUIZ

Electromagnets

Permanent magnets

None of these

Both (A) and (B)

Parallel combination of armature and series field

Series combination of armature and series field

Armature

Series field

Half the number of poles

Same as the number of poles

Two

Double the number of poles

10

150

50

100

Two north poles follow two south poles

All the four poles are south poles

All the four poles are north poles

Alternate poles are north and south

Number of parallel paths

Number of pole pairs

Number of commutator segments

Number of poles

Reduce eddy current loss

Provide the bulk

Insulate the core

Reduce the bulk

Rotary converter

Induction motor D.C. generator set

Mercury are rectifier

Synchronous motor D.C. generator set

Number of pairs of poles

Number of poles

None of the listed here

2

Using carbon brushes of superior quality

Using commutator with large number of segments

Using conductor of annealed copper

Using equalizer rings