DC Generator Questions and Answers Pdf - 2

Question: 6

The internal characteristic of a dc generator is plotted between the

(A) Armature current and voltage generated at the output terminals

(B) Armature current and voltage generated after armature reaction

(C) Field current and voltage generated at no load

(D) Field current and voltage generated on load

Question: 7

Which of the following dc motors, on removal of load, will run at the maximum speed?

(A) Cumulative compound

(B) Differential compound

(C) Series

(D) Shunt

Question: 8

The terminal voltage of an over compounded dc generator

(A) Increase with the increase in load current

(B) Decreases with the increase in load current

(C) Remains constant at all load currents

(D) None of the above

Question: 9

The direction of rotation of a dc motor can be determined by

(A) Ampere law

(B) Lenz’s law

(C) Fleming’s right hand rule

(D) Fleming’s left hand rule

Question: 10

The series field of a short shunt dc generator is excited by ____ current.

(A) Armature

(B) Resistance

(C) Shunt field

(D) Load