www.ThinkITI.com

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
ITI
Electrician
Electrician Set-1
DC Motors
65

DC Motors MCQ - Electrician (Set-1) with Answers

65) Which law is used to find the direction of emf produced in the rotor of a motor ?

Fleming's right hand rule

Fleming's left hand rule

Maxwell's cork screw rule

Lenz's law

Answer is:

Fleming's left hand rule

DC Motors MCQ - Electrician (Set-1) with Answers

For more MCQ's Click Here

Related DC Motors MCQ - Electrician (Set-1) with Answers

66) In D.C. motor the back e.m.f. is directly proportional to :

flux

speed

no. of armature conductors

no. of poles

Answer is:

speed

67) The turning (or) twisting moment of force about an axis is called as :

speed

momentum

torque

velocity

Answer is:

torque

68) The turning or twisting moment of a force is called :

torque

speed

power

velocity

Answer is:

torque

69) The starting resistance of 3 point starter in D.C. motor is connected with :

parallel across the armature

series with the armature

parallel across the field winding

series with the field winding

Answer is:

series with the armature

DC Motors MCQ - Electrician (Set-1) with Answers

For more MCQ's Click Here