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dc machines objective questions answers

  • Test: Electrical Machines- 1 | 20 Questions MCQ Test

    This contains 20 Multiple Choice Questions for SSC Test: Electrical Machines- 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Electrical Machines- 1 quiz give you a good mix of easy questions and tough questions. SSC students definitely take this Test: Electrical Machines- 1 exercise for a ...

  • Multiple Choice Questions and Answers on DC Generators ...

    Multiple Choice Questions and Answers on DC Generators. Q 1. In D.C. generators, the cause of rapid brush wear may be. Q 2. The insulating material used between the commutator segments is normally. Q 3. Eddy currents are induced in the pole shoes of a D.C. machine due to. Q 4.

  • 250+ TOP MCQs on DC Motor Basics -1 and Answers

    250+ TOP MCQs on DC Motor Basics -1 and Answers. DC Machines Multiple Choice Questions on "DC Motor Basics -1". 1. What will happen if DC shunt motor is connected across AC supply? a) Will run at normal speed. b) Will not run. c) Will Run at lower speed. d) Burn due to heat produced in the field winding. Answer: d.

  • Electrical Engineering question and answer: DC MACHINE ...

    A compound wound DC machine is said to be differentially compounded when the flux due to the shunt field winding diminishes the effect of the main series winding. This particular trait is not really desirable, and hence does not find much of a practical application.

  • DC Machines - Electrical Engineering (MCQ) questions and ...

    DC Machines - Electrical Engineering (MCQ) questions and answers. 1) A 120 V shunt generator running at 850 rpm has its armature and shunt field resistance of 0.15 ohm and 50 ohm respectively. It supplies 200 lamps each rated at 60 W, 100 V. The friction and windage and core loss of the machine is 400 W. its armature copper loss on full load ...

  • DC Machines MCQ (Multiple Choice Questions) - Sanfoundry

    DC Machines Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like IIT-JEE, NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries.

  • 100 Important Multiple choice Question Of Transformer – 2021

    The nominal current rating of the secondary winding of the CT is 5A to 1 A. To illustrate the operation of a current transformer, assume that the current ratio of the primary winding is 100 A. The secondary winding has a standard rating of 5A. The primary winding consists of three turns of wire, and the secondary winding consists of 60 turns.

  • Dc Machine Objective Questions Answers

    Download File PDF Dc Machine Objective Questions Answers Electromechanical Energy Conversion With Dynamics Of Machines In the present edition,authors have made sincere efforts to make the book up-to-date.A noteable feature is the inclusion of two chapters on Power System.It is hoped that this edition will serve the readers in a more useful way.

  • DC Generator MCQ Objective Questions and Answers Page - 5 ...

    DC Generator MCQ Objective Questions and Answers Page - 5. 1. 2. If in a 6 pole lap wound dc machine, the air gap under each pole is not the same, this is likely to result in. 3. 4. Minimum number of coils of r400 V, 6-pole lap connected dc machine for a maximum voltage of 15V between adjacent commutator segments should. 5. 6.

  • Dc Motor Mcq Questions - 139.59.122.137

    answers, objective questions gt multiple choice questions of single phase motors 1 15 1 a capacitor start single phase induction motor will usually have a power factor of a unity b 0 8 leading c 0 6 leading d 0 6 lagging get answer, home mcq 100 most important mcq question of dc motor objective

  • DC Machines Multiple Choice Questions with Answers | DC ...

    DC Machines Multiple Choice Questions with Answers for competitive exams. These short objective type questions with answers are very important for competitive exams like IIT-JEE, NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries.

  • Direct Current Machine Objective Questions (MCQ) and ...

    Your Comments: 17. The Inter polls in DC machines have a tempering shape in order to. A. Reduce the overall weight. B. Reduce the saturation in the Interpole. C. Economics on the material required for Interpoles and their windings. D. Increase the acceleration …

  • TOP 250+ DC motor Interview Questions and Answers 05 ...

    DC motor is one of the rotary machines which makes use of electrical current and converts it to mechanical energy which can be used in many other functions or operations. The forces are generated by magnetic fields. Do search in wisdom jobs for DC motor job listings for full time and part time positions updated today. If you are looking for job then go check out interview questions page to get ...

  • Multiple Choice Questions (MCQs) on DC Machines - About ...

    The Chapters of Multiple Choice Questions (MCQs) on DC Machines. This list is mainly about Multiple Choice Questions (MCQs) on DC Machines. So, we have covered all the possible sections of dc machines. For example, we have covered, the working principle of dc motors and working principle of dc generators.

  • Dc Machine Objective Questions Answers

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  • ELECTRICAL OBJECTIVE QUESTIONS WITH ANSWERS: DC Machine ...

    DC Machine Multiple Choice Questions with Solutions .. to prepare electrical exams like IES, GATE etc... If the speed of a DC machine is doubled and the flux remains constant, the generated e.m.f. ELECTRICAL OBJECTIVE QUESTIONS WITH ANSWERS: DC Machine Multiple Choice Questions with Solutions: Part-12

  • DC Motor Objective Questions Answers - your electrical guide

    Answer: (b) decreases. 25. A dc series motor is used for an overhauling load. It can work stably if. (a) the armature is shunted by a resistor. (b) the field winding is reversed. (c) a resistor is put in series with the machine. (d) a divertor is put across the field. Answer: (a) the armature is shunted by a resistor.

  • D.C. Motors MCQ Questions & Answers | Electrical Engineering

    Learn D.C. Motors MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. D.C. Motors MCQ question is the important chapter for a Electrical Engineering and GATE students.

  • Direct Current Machine Objective Questions (MCQ) and ...

    9. In a DC machine, the brushes are physically placed in the . A. Polar axis and electrically connected to the coils lying in the Interpolar axis B. Polar axis electrically connected to the coils lying in the polar axis C. Interpolar axis and electrically connected to the coils lying in the polar axis D. Interpolar axis and electrically connected to the coils lying in the interpolar axis

  • ELECTRICAL OBJECTIVE QUESTIONS WITH ANSWERS: Electrical ...

    Electrical Machine - DC Motor Objectives: Part 7. [1] The basic requirement of a dc armature winding is that it must be. (a) A closed one. (b) A lap winding. (c) A wave winding. (d) Either b or c. (e) None of the above. Ans: A. [2] The sole purpose of a commutator in a dc generator is to.

  • Dc Machine Objective Questions Answers

    It contains objective questions with underlined & bold correct answers covering all topics including Electrical Machines, Hand Tools, Measuring Instruments, Accessories and lots more. We add new question answers with each new version. Please email us in case of any errors/omissions.

  • DC Machines Objective test Questions | Electrical ...

    DC Machines Objective test Questions. 1. In DC Generator the critical resistance refers to: a) Armature. b) Field. c) Load. d) Commutator. B. Remember: If resistance of field is beyond critical resistance Generator will not start.

  • Dc Machine Objective Questions Answers

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  • 300+ TOP D.C. MOTORS Multiple Choice Questions and Answers …

    300+ TOP Single Phase Induction Motors Multiple Choice Questions & Answers ; 250+ TOP MCQs on Operating Characteristics of DC Compound Motor – 1 and Answers ; 130 TOP D.C.MOTOR Questions and Answers pdf ; 130 TOP DC MOTOR Objective Questions Answers pdf free Download ; 250+ TOP MCQs on Braking of DC Motors – 2 and Answers

  • Lab 6 Magnetization Characteristics of a D.C. Machine ...

    Electrical Engineering questions and answers; Lab 6 Magnetization Characteristics of a D.C. Machine Objective: To study the open circuit characteristics of a d.c. machine. Rheostats, d.c. Ammeters, d.c. Voltmeter, and Tachometer. Apparatus Required: Connection Diagram DC Motor Q v. Armature Circuit R 120 V d.o. Field Circuit Procedure: 1.

  • Swinburne Test MCQ Questions & Answers - Dapzoi

    Swinburne Test MCQs : This section focuses on the "Swinburne Test" in DC Machines. These Multiple Choice Questions (MCQs) should be practiced to improve the DC Machines skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

  • Electrical Machines Multiple Choice Questions and Answers

    Electrical Machines MCQ Questions and Answers Quiz. 11. Which of the following motors has a high starting torque? 12. The starting winding of a single-phase motor is placed in. 13. In a DC series motor increase in load current results in.

  • Electrical Objective Questions: DC Machines (Set 1 ...

    Electrical Objective Questions With Answers: 1.The nature of the current flowing in the armature of the DC machine is: a) ac. b) dc. c) pulsating. d) dc superimposed on ac. 2.The Commutator in a dc machine can be convert. a) ac to dc. b) dc to ac.

  • Important Short Questions and Answers: Design of ...

    Important Short Questions and Answers: Design of Electrical Machines - DC Machines. 1. Define gap expansion factor and give the equation for it. The ratio of reluctance of flux path when armature with slot to reluctance of flux path when armature without slot. 2.

  • DC Motor Questions and Answers pdf - your electrical guide

    DC Motor Questions and Answers pdf. 1. The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is. 2. The armature voltage control of D.C. motor provides. Answer: (a) constant torque drive. 3. The speed of …