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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Test  >  Electrical Machines  >  Test: Operating Characteristics of DC Generators - Electrical Engineering (EE) MCQ

Operating Characteristics of DC Generators - Free MCQ Practice Test


MCQ Practice Test & Solutions: Test: Operating Characteristics of DC Generators (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: Operating Characteristics of DC Generators". 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: Operating Characteristics of DC Generators - Question 1
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Which of the following characteristics reveal about the magnetization nature of the machine?

Detailed Solution: Question 1

Both no-load as well as load characteristics are required to predict the magnetization of the machine.

Test: Operating Characteristics of DC Generators - Question 2
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Choose the most inappropriate out of the following for the no-load characteristics of the dc generator.

Detailed Solution: Question 2

All the mentioned nature of the characteristics are correct.

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Test: Operating Characteristics of DC Generators - Question 3
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The external characteristic is plotted between

Detailed Solution: Question 3

The external characteristic is plotted between terminal voltage and armature current at fixed excitation. ... Explanation: Armature characteristic is also known as regulation characteristic. It is so called due to the fact that the difference in the terminal voltage helps to determine the voltage deviation.

Characteristics of DC Generators | electricaleasy.com

Test: Operating Characteristics of DC Generators - Question 4
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A student forgot to mark the x-y axes in his experiments but he just noted down the cause and the effect for each. How will he conclude about the armaturecharacteristic out of the all plotted graphs?

Detailed Solution: Question 4

Armature characteristic is observed at constant terminal voltage for emf vs armature current.

Test: Operating Characteristics of DC Generators - Question 5
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Armature characteristic is also known as

Detailed Solution: Question 5

Armature characteristic is also known as regulation characteristic. It is so called due to the fact that the difference in the terminal voltage helps to determine the voltage deviation.

Test: Operating Characteristics of DC Generators - Question 6
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The air gap line represents

Detailed Solution: Question 6

Air gap line in the magnetization curve represents the ideal nature of the machine considering no saturation for the dc machine.

Test: Operating Characteristics of DC Generators - Question 7
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For a given dc generator, the external characteristic is plotted . Without using further plots, how can we obtain internal characteristic?

Detailed Solution: Question 7

To obtain the internal characteristic, you can: 

  1. Add the IaRa drop to the plot
  2. Subtract from E0 the values of voltage drops due to armature reaction for different loads
  3. At large armature current, field current increases sharply to compensate for the voltage drop caused by armature reaction

Test: Operating Characteristics of DC Generators - Question 8
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The voltage drop in terminal voltage from no-load to full load in a shunt generator can be compenated using

Detailed Solution: Question 8

By aiding the series field the armature reaction drop can be compensated.

Test: Operating Characteristics of DC Generators - Question 9
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Why is armature of a dc machine made of silicon steel stampings?

Detailed Solution: Question 9

The silicon steel has very high permeability and makes the flux past consistent. Thereby making lesser losses.

Test: Operating Characteristics of DC Generators - Question 10
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Armature reaction in a generator results in

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About this Electrical Engineering (EE) Practice Test

This test contains 10 MCQs on Operating Characteristics of DC Generators 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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