DC GENERATORS QUIZ

To enhance flux density

To amplify voltage

To reduce eddy current losses

To provide mechanical balance for the rotor

Length of conductor

Number of conductors

Cross sectional area of the conductor

All of the listed here

All the four poles are north poles

All the four poles are south poles

Two north poles follow two south poles

Alternate poles are north and south

Magnetization characteristic = external characteristic

External resistance = internal characteristic armature reaction

Internal characteristic = magnetization characteristic ohmic drop

External characteristic = magnetization characteristic ohmic drop armature reaction

Has all above features

Is amenable to better voltage control

Has exciting current independent of load current

Is more stable

None of the listed here

Thrice the pole pitch

Twice the pole pitch

Pole pitch

Twice the number of poles

Numbers of conductors

None of the listed here

Number of coils

Speed only

Flux only

None of the listed here

Both speed and flux

Carbon brushes

Graphite brushes

Metal graphite brushes

None of these

All of these

Level compounded generator

Self-excited generator

Separately excited generator