DC Generators
An exciter for a turbo generator is a

Compound generator
Series generator
Separately excited generator
Shunt generator

ANSWER DOWNLOAD EXAMIANS APP

DC Generators
In a D.C. generator

External characteristic = magnetization characteristic ohmic drop armature reaction
Internal characteristic = magnetization characteristic ohmic drop
External resistance = internal characteristic armature reaction
Magnetization characteristic = external characteristic

ANSWER DOWNLOAD EXAMIANS APP