In D.C. machines the residual magnetism is of the order of A. 2 to 3 per cent (6) 10 to 15 per cent C. 20 to 25 per cent D. 50 to 75 per cent. Answer: A. ... Sir please send me short objectives questions with answer of ac and dc moter basic. Reply. Rislu says: April 16, 2024 at 12:00 am.

DC generator and DC motor together we called as DC machine. DC machine Objective Questions Part-1 DC machine MCQs Part-1. Continue on app (Hindi) Electrical Machines. 14 lessons • 2h 25m . 1. Transformer …

DC Generator Objective MCQ Questions. DC generators are dc machines that convert mechanical energy to dc electrical energy. The DC generator converts mechanical energy into electrical energy using electromagnetic induction principles. This interaction produces an electrical current that can power various devices and machinery.

DC machines Objective type Questions - Easy (43-47) 11:47mins. 10. DC machines Objective type Questions 2M (51-53) 15:00mins. 11. DC machines Objective type Questions 2M (54-56) 8:11mins. 12. DC machines Objective type Questions 2M (48-49) 8:00mins. Crack GATE & ESE with Unacademy

This set of Design of Electrical Machines Multiple Choice Questions & Answers (MCQs) focuses on "Frames of D.C. & A.C. Machines". 1. What is the work of the frame of dc machines? a) to reduce the voltage. b) to reduce the flux. c) to carry the flux. d) to carry the current. View Answer.

1). In DC motor, the speed of the motor is directly proportional to ? Rotor length. Input power. Back e.m.f. All of the above. Hint. 2). In series, DC motor armature …

Get DC Motors Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Download these Free DC Motors MCQ Quiz Pdf and prepare for your …

by Editorial Staff. Electrical Machines Objective Questions & Answers. Q.1 The two winding's of a transformer are. (A) conductively linked. (B) inductively linked. (C) not linked at all. (D) electrically linked. Q.2 A salient pole synchronous motor is running at no load. Its field current is switched off.

DC Machines Circuit Model. In this MCQ you can learn and practice DC Machines Circuit Model objective quiz questions to test your knowledge on electrical machines. This quiz section consists of total 15 questions. Each question carries 1 point. No negative points for wrong answers. You need to score at-least 50% to pass the test.

Direct Current Machine Objective Questions (MCQ) and Answers - Mechanicaltutorial. Direct Current Machine Or DC Machine Objective Questions and Answers. 1. Poles of …

Commutator Of Direct Current Machine Objective Questions and Answers. 46. The commutator of a DC machine serves the purpose of. 47. To avoid formation of grooves in the commutator. A. The brushes of opposite polarity should track each other. B. The brushes of same polarity should track each other.

Answer / Hint Save Question. 2. In a dc motor energy conversion would not have been possible but for. A Input energy from the supply. B Production of back emf in the armature. C Use of commutator. D Rotation of the machine. Answer / Hint Save Question. 3.

DC Machines Efficiency and Testing. In this MCQ you can learn and practice DC Machines Efficiency and Testing objective quiz questions to test your knowledge on electrical machines. This quiz section consists of total 15 questions. Each question carries 1 point. No negative points for wrong answers. You need to score at-least 50% to pass …

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 …

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.

DC machines Objective type Questions - Easy (43-47) 11:47mins. 10. DC machines Objective type Questions 2M (51-53) 15:00mins. 11. DC machines Objective type Questions 2M (54-56) 8:11mins. 12. DC machines Objective type Questions 2M (48-49) 8:00mins. Crack GATE & ESE with Unacademy

DC Machine. In this MCQ you can learn and practice DC Machine objective quiz questions to test your knowledge on electrical machines. This quiz section consists of total 15 questions. Each question carries 1 point. No negative points for wrong answers. You need to score at-least 50% to pass the test. Answers are available in the quiz.

DC machines Objective type Questions - Easy (7-12) 13m 38s. DC machines Objective type Questions (13-18) 11m 38s. DC machines Objective type Questions (19 - 23) 8m 07s. DC machines Objective type Questions(24-29) 11m 18s. DC machines Objective type Questions (30-36) 14m 59s.

MCQ on DC Machines | Electrical Engineering. More than 100 multiple choice questions and answers (mcq) on Dc Machines are given for practice.

The principle followed by an electric motor is electricity and electromagnetism. 1). In DC motor, the speed of the motor is directly proportional to ? All of the above. 2). In series, DC motor armature current is equal to? 3). Commutators are used in---? Both a and b.

Electrical Machines MCQ Questions and answers. MCQ questions on DC Motor: Here, You can find Electrical Machines Objective questions and answers which will be useful for Competitive Exams and University Exams. No-load speed of which of the following motor will be highest ? (a) Shunt motor (b) Series motor (c) Cumulative …

35. If two eight pole DC machines of identical armatures are wound, one with a lap winding and the other with wave winding, then . A. Wave wound machine will have more rated current and more voltage B. Lap wound machine will have more rated voltage and more current C. Lap wound machine will have more rated voltage and less current D. Wave …

Our 1000+ Electrical Machines MCQs (Multiple Choice Questions and Answers) focuses on all chapters of Electrical Machines covering 100+ topics. You should practice these MCQs for 1 hour daily for 2-3 months. This way of systematic learning will prepare you easily for Electrical Machines exams, contests, online tests, quizzes, MCQ-tests, viva ...

Top DC Generator Winding MCQ Objective Questions . DC Generator Winding Question 6 Download Solution PDF. A 6-pole lap-connected DC generator has 480 conductors and armature circuit resistance is 0.06 ohm. If the conductors are reconnected to form wave winding, other things remaining unchanged, the value of armature circuit …

This set of DC Machines MCQs focuses on "Operating Characteristics of DC Series Motor – 2". 1. Which DC motor is generally preferred for cranes and hoists? a) Series motor b) …

A. The use of equalizers in lap winding. 37. Number of tappings to equalizer ring is equal to number of. 38. In a DC machine armature winding, the number of commentators segments is equal to the number of armature. 39. For both lap and wave windings there are as many commutator bars as the number of. 40.

A commutator is a mechanical rectifier which converts the alternating voltage generated in the armature winding into direct voltage across the brushes. The commutator is made of copper segments insulated from each other by mica sheets and mounted on the shaft of the machine. The armature conductors are soldered to the commutator segments in a ...

This set of DC Machines Multiple Choice Questions & Answers (MCQs) focuses 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 …

machines. •Objective type questions to help students prepare for competitive exams. Electrical Machines & Drives P. Hammond, Containing approximately 200 problems (100 worked), the text covers a wide range of topics concerning electrical machines, placing particular emphasis upon electrical-machine drive applications.

5. Compensating winding in a dc machine is placed on. (a) armature in slots. (b) yoke in the interpolar gap. (c) yoke in the pole faces. (d) partly in armature slots and partly in pole faces. 6. Compensating windings are employed in dc motors which are likely to operate. (a) at a constant speed over wide range of load.

DC Machine: The above figure shows the constructional details of a simple 4-pole DC machine. A DC machine consists of two basic parts: stator and rotor. Basic constructional parts of a DC machine: Yoke: The outer frame of a dc machine is called as the yoke. It is made up of cast iron or steel.

A device that turns mechanical energy into Electrical energy. What formula is Eg=bLv sin theta. Eg = voltage generated. b= flux density. L= active length of conductor. v= relative velocity conductor is to magnetic field. theta= instantaneous angle of …

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 …

c) Differential compound motor. d) Cumulative compound motor. View Answer. 3. Buses, trains, trolleys, hoists, cranes make use of DC series motor because __________. a) It provides low starting torque. b) Cost efficient. c) It provides high starting torque. d) It requires minimum power compare to other motors.

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 of commutation. View Answer. B. Reduce the overall weight.

Study with Quizlet and memorize flashcards containing terms like If a speed of a DC shunt motor is increased, the back emf of the motor will a. Increase b. Remains the same c. …

Chapterwise Multiple Choice Questions on Transformer. Our 1000+ MCQs focus on all topics of the Transformer subject, covering 100+ topics. This will help you to prepare for exams, contests, online tests, quizzes, viva-voce, interviews, and certifications. You can practice these MCQs chapter by chapter starting from the 1st chapter or you can ...

DC Motors Objective Questions. The below list provides all the multiple-choice questions related to DC motor. Answers are available at the bottom of the article. 1. According to …

Ac And Dc Machines Objectives Type Questions - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Scribd is the world's largest social reading and publishing site.