Inst ToolsInst ToolsInst Tools
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Search
  • Books
  • Software
  • Projects
  • Process
  • Tools
  • Basics
  • Formula
  • Power Plant
  • Root Cause Analysis
  • Electrical Basics
  • Animation
  • Standards
  • 4-20 mA Course
  • Siemens PLC Course
Reading: Stepper Motors Objective Questions & Answers
Share
Font ResizerAa
Inst ToolsInst Tools
Font ResizerAa
  • Courses
  • Design
  • PLC
  • Interview
  • Control System
Search
  • Courses
  • Automation
    • PLC
    • Control System
    • Safety System
    • Communication
    • Fire & Gas System
  • Instrumentation
    • Design
    • Pressure
    • Temperature
    • Flow
    • Level
    • Vibration
    • Analyzer
    • Control Valve
    • Switch
    • Calibration
    • Erection & Commissioning
  • Interview
    • Instrumentation
    • Electrical
    • Electronics
    • Practical
  • Q&A
    • Instrumentation
    • Control System
    • Electrical
    • Electronics
    • Analog Electronics
    • Digital Electronics
    • Power Electronics
    • Microprocessor
  • Request
Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Inst Tools > Blog > Electrical Q & A > Stepper Motors Objective Questions & Answers

Stepper Motors Objective Questions & Answers

Last updated: June 21, 2025 10:05 am
Editorial Staff
Electrical Q & A Instrumentation MCQ Multiple Choice Questions
No Comments
Share
4 Min Read
SHARE

Stepper Motors Objective Questions & Answers

1. A variable reluctance stepper motor is constructed of ______________ material with salient poles.

a) Paramagnetic
b) Ferromagnetic
c) Diamagnetic
d) Non-magnetic

Answer: b

Explanation: A variable reluctance stepper motor is the motor that has motion in steps with respect to increase in time and constructed of ferromagnetic material with salient poles.

2. In a three-stack 12/8-pole VR motor, the rotor pole pitch is

a) 15º
b) 30º
c) 45º
d) 60º

Answer: c

Explanation: Pole pitch is defined as the number of armature slots to the pole pitch and here this has been converted into degrees.

3. A stepper motor having a resolution of 300 steps/rev and running at 2400 rpm has a pulse rate of- pps.

a) 4000
b) 8000
c) 6000
d) 10,000

Answer: c

Explanation: Pulse per second is mathematically given as PPS = (Rpm/60)*(number of steps per minute).

4. If a hybrid stepper motor has a rotor pitch of 36º and a step angle of 9º, the number of its phases must be

a) 4
b) 2
c) 3
d) 6

Answer: a

Explanation: Step angle is defined as =(Ns-Nr)/(Ns+Nr)*360.

5. The rotor of a stepper motor has no

a) Windings
b) Commutator
c) Brushes
d) All of the mentioned

Answer: d

Explanation: The rotor is the rotatory part of the motor of a stepper motor and has no windings, commutator and brushes.

6. A stepping motor is a ____________ device.

a) Mechanical
b) Electrical
c) Analogue
d) Incremental

Answer: d

Explanation: A stepping motor is a motor in which the motion in the form of steps and is a incremental device i which as the time increases the steps are increased.

7. The rotational speed of a given stepper motor is determined solely by the

a) Shaft load
b) Step pulse frequency
c) Polarity of stator current
d) Magnitude of stator current.

Answer: b

Explanation: The stator part of a motor is the stationary part of the motor and rotational speed of a given stepper motor is given by the step pulse frequency.

8. Which of the following phase switching sequence represents half-step operation of a VR stepper motor ?

a) A, B, C,A……..
b) A, C, B,A…….
c) AB, BC, CA, AB……..
d) A, AB, B, BC……..

Answer: d

Explanation: In the half step operation of a Variable reluctance motor physical step resolution is multiplied by 2 and control signals appear to be digital rather than analog.

9. A stepper motor may be considered as a ____________ converter.

a) Dc to dc
b) Ac to ac
c) Dc to ac
d) Digital-to-analogue

Answer: d

Explanation: A stepper motor is a motor in which the motion is in steps and it is an increemental device and may be considered as a digital to analog converter.

10. What is the step angle of a permanent-magnet stepper motor having 8 stator poles and 4 rotor poles?

a) 60º
b) 45º
c) 30º
d) 15º

Answer: b

Explanation: Step angle is defined as =(Ns-Nr)/(Ns+Nr)*360 where Ns is the number of stator poles and Nr is the number of rotor poles.

Don't Miss Our Updates
Be the first to get exclusive content straight to your email.
We promise not to spam you. You can unsubscribe at any time.
Invalid email address
You've successfully subscribed !

Continue Reading

Measurement of Impedance Objective Questions
Nano Instrumentation Objective Questions
Stability Analysis
Interview Questions & Answers on Alternators
Objective Questions of Building Fire and Gas Detectors
Signal Flow Graphs Objective Questions
Share This Article
Facebook Whatsapp Whatsapp LinkedIn Copy Link
Share
Leave a Comment

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Stay Connected

128.3kFollowersLike
69.1kFollowersFollow
210kSubscribersSubscribe
38kFollowersFollow

Categories

Explore More

Paramagnetic Oxygen Analyzers Questions & Answers
Effect of Adding a Zero to a System – II
X-Ray Spectroscopy Questions & Answers
Ion Transducers Questions & Answers
Micro Sensors Objective Questions
Capacitive Transducers Objective Questions
Filtering and Dynamic Compensation Objective Questions
Digital Readout Systems Objective Questions

Keep Learning

Mathematical Models of Physical Systems

Transfer Functions Objective Questions

Stability in Frequency Domain

Preliminary Considerations of Classical Design

Inductive Transducers Objective Questions

Inductive Transducers Objective Questions

Feedback Characteristics of Control Systems

Linearizing Effect & Regenerative Feedback MCQ

Digital Control Systems

Compensation Techniques : Control Systems

Photo Electric Transducers Objective Questions

Photo Electric Transducers Objective Questions

Measurement and Instrumentation Objective Questions

Measurements & Instrumentation Quiz – Set 8

Top 100 Power Electronics Questions & Answers

Top 100 Power Electronics Questions & Answers

Learn More

four-way-solenoid-valve-diagram

Four Way Solenoid Valve Working Principle

Asynchronous Motor Animation

Asynchronous Motor Animation

Process Control Instrumentation Terms Glossary

Process Control Instrumentation Glossary

Components of a Water Treatment Plant

Components of Water Treatment Plant

Solenoid Valve

Solenoid Valve Troubleshooting Practices

how-to-avoid-bad-grounds

How to Avoid Bad Grounds ?

different PLC brands of Distributed IO

What is Distributed IO? – Decentralized Peripherals in PLC

Electricity Magnetism

Menu

  • About
  • Privacy Policy
  • Copyright

Quick Links

  • Learn PLC
  • Helping Hand
  • Part Time Job

YouTube Subscribe

Follow US
All rights reserved. Reproduction in whole or in part without written permission is prohibited.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?