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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  Electrical Machines  >  Test: Permanent Magnet DC (PMDC) Motors - Electrical Engineering (EE) MCQ

Permanent Magnet DC (PMDC) Motors - Free MCQ Practice Test with solutions,


MCQ Practice Test & Solutions: Test: Permanent Magnet DC (PMDC) Motors (10 Questions)

You can prepare effectively for Electrical Engineering (EE) Electrical Machines with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Test: Permanent Magnet DC (PMDC) Motors". These 10 questions have been designed by the experts with the latest curriculum of Electrical Engineering (EE) 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 10 minutes
  • - Number of Questions: 10

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Test: Permanent Magnet DC (PMDC) Motors - Question 1
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The qualities aspired to obtain a good permanent magnet is/are

Detailed Solution: Question 1

Its both high residual flux as well as coercivity is desired for a good permanent magnet.

Test: Permanent Magnet DC (PMDC) Motors - Question 2
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The type of field winding required in PMMDC is

Detailed Solution: Question 2

There is no field winding used in PMMDC to create the flux.

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Test: Permanent Magnet DC (PMDC) Motors - Question 3
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PMMDC are smaller in size due to

Detailed Solution: Question 3

There is no field winding used in PMMDC to create the flux. So it is lighter.

Test: Permanent Magnet DC (PMDC) Motors - Question 4
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PMMDC offers ______ characteristics.

Detailed Solution: Question 4

As the field remains constant due to the constant field, it has shunt characteristic.

Test: Permanent Magnet DC (PMDC) Motors - Question 5
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Select the possible dc magnetization characteristics of permanent magnetic materials.

Detailed Solution: Question 5

The magnetic field has a positive value when the magnetic field intensity, H has negative value due to coercivity property. We use second quadrant of hysteresis loop.

Test: Permanent Magnet DC (PMDC) Motors - Question 6
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Mark the speed torque characteristic of the PMDC.

Detailed Solution: Question 6

 It is linear in nature and also analogous to shunt machine.

Test: Permanent Magnet DC (PMDC) Motors - Question 7
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PMDC had no ________ excited machine.

Detailed Solution: Question 7

It has no electrical excitation.

Test: Permanent Magnet DC (PMDC) Motors - Question 8
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How to manage run-away issue for dc shunt motor in industry?

Detailed Solution: Question 8

A PMDC motor can be used to replace the dc shunt motor in industries as they have quite identical characteristics.

Test: Permanent Magnet DC (PMDC) Motors - Question 9
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A PMMDC motor has as armature resistance of 4.2 ohms. When 6 V supply is applied to motor it runs at 1215 rpm drawing 14.5 mA on no-load. The rotational losses is

Detailed Solution: Question 9

Rotational losses = E*Ia = 5.939* 14.5/1000 = 86.1 mW.

Test: Permanent Magnet DC (PMDC) Motors - Question 10
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 PMMDC can only be armature controlled.

Detailed Solution: Question 10

Due to absence of the field winding there is no option of field control.

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About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Permanent Magnet DC (PMDC) Motors with detailed solutions for each question. It is part of the Electrical Machines course on EduRev, designed to align with the current Electrical Engineering (EE) syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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