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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Tests  >  Test: Methods Of Excitation - Electrical Engineering (EE) MCQ

Test: Methods Of Excitation - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Methods Of Excitation

Test: Methods Of Excitation for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Methods Of Excitation questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Methods Of Excitation MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Methods Of Excitation below.
Solutions of Test: Methods Of Excitation questions in English are available as part of our course for Electrical Engineering (EE) & Test: Methods Of Excitation solutions in Hindi for Electrical Engineering (EE) course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Methods Of Excitation | 10 questions in 10 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Methods Of Excitation - Question 1
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Consider a DC generator running at the rated speed of 2000 rpm, suddenly there is an insulator falls on the field circuit and breaks it. Then

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As the field circuit gets broken there is interruption in the flux to the dc machine, and as a result the motor stops in few seconds.

Test: Methods Of Excitation - Question 2
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 If a self excited DC generator is failed to run, this refers to

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Any of the reasons are valid for no build up of an emf.

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Test: Methods Of Excitation - Question 3
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The self-excited dc generator with gradual build up of residual voltage and EMF corresponds to

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It responds to a positive feedback because the gain is always more than one in the linear region.

Test: Methods Of Excitation - Question 4
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The critical resistance refers to
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After taking a glance at the magnetization curve, it can be concluded that the emf will not build up if the resistance is greater than critical resistance.

Test: Methods Of Excitation - Question 5
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 If a DC shunt generator fails to start, the most primitive action would be
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The first measure is to check if the field winding as properly connected with additive polarity so that the flux is aiding in nature.

Test: Methods Of Excitation - Question 6
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Flashing is used to
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It is a method to give a kick start to dc machine when its residual magnetism is vanished.

Test: Methods Of Excitation - Question 7
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A series generator, having external characteristics which is a straight line through 0 to 50 V at 200 A is connected as a booster, between a station bus-bar and feeders of 0.5 ohm resistors. The voltage at the far end of feeder at current of 50 A is
Detailed Solution for Test: Methods Of Excitation - Question 7

V = voltage drop-voltage added up by boosters
= (0.3*50 – 50*50/200)
= 15-12.50
= 2.5 V

Test: Methods Of Excitation - Question 8
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 The number of parallel paths in the armature is increased by
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 It is increased by increasing magnetic poles which give parallel path to the magnetic circuit.

Test: Methods Of Excitation - Question 9
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 A dc series generator as armature and field connections are reversed, the generator
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It happens due to non build up voltage.

Test: Methods Of Excitation - Question 10
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 ____ is responsible for mechanical power output of a DC motor
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Primarily it is the electrical input power which starts the motoring action.

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Important Questions for Methods Of Excitation

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Methods Of Excitation MCQs with Answers

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