1000+ DC Generators Multiple Choice Questions and Answers - 2

Question: 6

A D.C. generator can be considered as

(A) power pump

(B) primemover

(C) rectifier

(D) rotating amplifier

Question: 7

In a D.C. generator the critical resistance refers to the resistance of

(A) armature

(B) load

(C) field

(D) brushes

Question: 8

In D.C. generators the polarity of the interpoles

(A) is neutral as these poles do not pay part in generating e.m.f.

(B) is opposite to that of the main pole ahead

(C) is the same as that of the immediately preceding pole

(D) is the same as that of the main pole ahead

Question: 9

The insulating material used between the commutator segments is normally

(A) insulating varnish

(B) mica

(C) paper

(D) graphite

Question: 10

In a four pole D.C. machine

(A) two north poles follow two south poles

(B) all the four poles are south poles

(C) alternate poles are north poles

(D) all the four poles are north poles