1000+ Electrical Machines Objective Questions and Answers Pdf - 1

Question: 1

A two winding transformer is

(A) inductively linked

(B) conductively linked

(C) electrically linked

(D) not linked at all

Question: 2

The speed torque characteristic of a DC series motor are approximately similar to those of the motor

(A) dc shunt

(B) two phase

(C) universal

(D) synchronous

Question: 3

The property of a material which opposes the production of magnetic flux in it is known as

(A) reluctance

(B) permittivity

(C) permeance

(D) mmf

Question: 4

The torque developed by a 3 phase induction motor depends on

(A) rotor emf, rotor current and rotor p.f.

(B) synchronous, speed, rotor speed and frequency

(C) voltage, current and stator impedance

(D) speed, frequency and number of poles

Question: 5

A DC generator without commutator is a

(A) induction motor

(B) dc generator

(C) dc motor

(D) ac generator