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DC Machines MCQ (Multiple Choice Questions) - …

Our 1000+ DC Machines MCQs (Multiple Choice Questions and Answers) focus on all areas of DC Machines covering 100+ topics. These topics are chosen from a collection of the most authoritative and best reference books on DC Machines. One should spend 1 hour daily practicing these MCQs for 2-3 months to learn and assimilate DC Machines subject comprehensively. This way of systematic learning will ...

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DC Machines - Electrical Engineering (MCQ) questions …

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 ...

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Direct Current Machine Or DC Machine Objective …

Direct Current Machine Or DC Machine Objective Questions and Answers. 11. In DC machines the air gap flux distribution in space at no-load is . A. Sinusoidal . B. Triangular . C. Flat topped . D. Pulsating . View Answer. C. Flat topped . Your Comments. Your name: Your Email: Your Comments: 12. In a DC machine the actual flux distribution depends upon . A. Size of air gap . B. Shape of pole ...

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Electrical Interview Questions With Answers Dc …

Electrical Question 3: What is the use of Commutator in DC machine? Commutator is the part in DC machine that makes the difference from the ac machine. In DC machine the current flow in the armature is ac. This current is made uni directional with the help of commutator. In ac machines slip rings are used to collect the armature current from ...

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DC Machines MCQs and Answers for competitive …

DC Machines MCQs 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.

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DC Machines Quiz Questions | Electrician Exams …

Question 2 of 15. 2. Question. 1 points. Armature of the dc machine is laminated to reduce which of the following: 1. Eddy Current Loss. 2. Copper Loss.

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Multiple Choice Questions (MCQs) on DC Machines - …

18/04/2019· Question 1 Explanation: The number of poles in the machine is 4. The number of armature slots in the machine is 72. So the number of armature slots between two adjacent pole is (72÷4)=18. Question 2. If we make the field flux of a DC motor zero, its speed. A. approaches to zero. B.

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88 questions with answers in DC MACHINES | Science …

06/10/2020· 88 questions with answers in DC MACHINES | Science topic. Science topics: Engineering Electrical Engineering Electrical Power Engineering Electrical Machines DC Machines. Science topic.

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Electrical Engineering question and answer: DC …

DC MACHINE QUESTION AND ANSWER Q: What are the essential parts of DC machine? A: 1. Magnetic frame or yoke. 2. Poles. 3. Armature. 4. Commutator. 5. pole shoes. 6. armature windings. 7. interpoles . 8. Brushes. 9. bearings. 10. shaft . Q. What is the purpose of yoke in d.c machine? 1.It acts as a protecting cover for the whole machine and provides mechanical support for the poles. 2.It carries ...

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DC MACHINE Interview Questions & Answers

Best DC MACHINE Interview Questions and Answers. Dear Readers, Welcome to DC MACHINE Interview Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of DC MACHINE.These DC MACHINE Questions are very important for campus placement test and job interviews.

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DC Machines MCQ • Electrical Engineering MCQ

30/01/2020· Correct answer: 2. It produces gradual degradation. More MCQ on DC Machines: Generally the preferred DC Motor for cranes and hoists is. The approximate thickness of laminations of a D.C. machine is. Usually, the field coils of D.C. generator are made from.

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300+ TOP D.C. GENERATORS Multiple choice Questions and Answers

300+ [UPDATED] Electrical Machines Interview Questions and Answers ; 250+ TOP MCQs on Operating Characteristics of DC Generators and Answers ; 250+ TOP MCQs on Efficiency of DC Machine- 2 and Answers ; 250+ TOP MCQs on Armature Windings and Answers ; 300+ TOP Single Phase Induction Motors Multiple Choice Questions & Answers ; 250+ TOP MCQs on Ways to Reduce Effects of Armature Reaction – 2 ...

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(PDF) SOLVED PROBLEMS ON DC MACHINE MAGNETIC …

SOLVED PROBLEMS ON DC MACHINE MAGNETIC CIRCUIT Example.1 Calculate the ampere-turns turns for the air gap of a dc machine given the following data. Gross core length = 40cm, air gap length = 0.5cm, number of ducts = 5, width of duct = 1.0cm, slot pitch = 6.5cm, slot opening = 0.5cm, average value of flux density in the air gap =0.63T. Field form factor = 0.7, Carter’s coefficient = 0.72 for ...

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100 Important MCQ Question of DC Motor | Objective type ...

Answer 1. 2 poles. Explanation: Small H.P motors require only 2 poles because as the number of poles is inversely proportional to the speed therefore 2 pole motor runs at high speed than 4 pole motor. Two pole motor has better efficiency. Two pole motor has better rpm and noise performance. Ques 7.

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

Sir please send me short objectives questions with answer of ac and dc moter basic. Reply. Rislu says: July 29, 2016 at 2:34 pm. Please send me all Electrical & Electronics related questions and answer in pdf. [email protected] Reply. Harsh Desai says: June 5, 2016 at 7:02 pm. All questions are very usefull and intresting..Sir plzz send me pdf of all electrical field question and answer ...

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dc machine questions with answers - charlyshop.ch

DC Machines Objective Questions Answers Electrical. Feb 06 2013 0183 32 DC Machines Objective Questions Answers 1 DC Machines 6 Electrical Basics 4 Electrical Circuits 1 Electronic Devices 3 Engineering... Know More. What is the purpose of the following in a DC machine. Oct 21 2011 0183 32 What is the purpose of the following in a DC machine a Armature Best Answer A DC machine Answer Questions ...

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dc machines objective questions answers.pdf

MCQ on DC MOTORS Part -1 . 26 Jul 2015 , Electricalnd electronics engineering objective questions and answers dc machines-8 - Duration: 2:37 naveen guthula 359 views 2:37...

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dc machines questions and answers pdf

Kent DA3 8DS 5 Cherry Trees, Hartley. 01474 70 70 77 [email protected] dc machines questions and answers pdf

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dc machines questions and answers pdf - amf.md

dc machines questions and answers pdf 1st decembrie 2020 1st decembrie 2020 Comentariile sunt închise pentru dc machines questions and answers pdf ...

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DC MACHINE Interview Questions & Answers

Best DC MACHINE Interview Questions and Answers. Dear Readers, Welcome to DC MACHINE Interview Questions and Answers have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of DC MACHINE.These DC MACHINE Questions are very important for campus placement test and job interviews.

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DC Machines MCQ • Electrical Engineering MCQ

30/01/2020· Correct answer: 2. It produces gradual degradation. More MCQ on DC Machines: Generally the preferred DC Motor for cranes and hoists is. The approximate thickness of laminations of a D.C. machine is. Usually, the field coils of D.C. generator are made from.

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300+ TOP D.C. GENERATORS Multiple choice Questions and Answers

300+ [UPDATED] Electrical Machines Interview Questions and Answers ; 250+ TOP MCQs on Operating Characteristics of DC Generators and Answers ; 250+ TOP MCQs on Efficiency of DC Machine- 2 and Answers ; 250+ TOP MCQs on Armature Windings and Answers ; 300+ TOP Single Phase Induction Motors Multiple Choice Questions & Answers ; 250+ TOP MCQs on Ways to Reduce Effects of Armature Reaction – 2 ...

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Solved Problems: Electrical Engineering and ...

Chapter: Electrical Engineering and Instrumentation - DC Machines Solved Problems: Electrical Engineering and Instrumentation - DC Machines. Electrical Engineering and Instrumentation - DC Machines - Solved Problems: Electrical Engineering and Instrumentation - DC Machines . PROBLEMS. A 4 pole generator with wave wound armature has 51 slots each having 24 conductors. The flux per pole is 10 ...

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100 Important MCQ Question of DC Motor | Objective type ...

Answer 2. To carries large load current. Explanation: The use of thick and thin wires in DC machines is to have appropriate resistance. In DC shunt machine thin wire of larger number of turns is used ; In the series machine, thick wires of smaller turns are used.

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DC Motor Interview Questions - Electrical Ride

DC Motor Interview Questions. 1) What is the principle operation of DC Motors? The principle operation of a DC motors is same as that of a DC generator that whenever a current carrying conductor came across an influence of a magnetic field, a mechanical force induces within it. Usually, there is …

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dc machines questions and answers pdf - amf.md

dc machines questions and answers pdf 1st decembrie 2020 1st decembrie 2020 Comentariile sunt închise pentru dc machines questions and answers pdf ...

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dc machines questions and answers pdf

Kent DA3 8DS 5 Cherry Trees, Hartley. 01474 70 70 77 [email protected] dc machines questions and answers pdf

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Electrical Machines - DC Machine Armature

This question is similar to many DC machine questions and falls into two parts. At the start of the question, you are given a reasonable amount of data about a specific operating condition. You need to then take useful information from this operating condition and apply it to the new operating conditions specified in the rest of the question. Show / Hide Solution. Solution. This is a ...

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DC MACHINES - Aydın Adnan Menderes University

• In a dc machine, the armature winding is found on the rotating member, referred to as the rotor. Elementary DC Machines • The armature winding of a dc generator is on the rotor with current conducted from it by means of carbon brushes. • The field winding is on the stator and is excited by direct current. Electric Machines General • When a machine is converting electrical energy into ...

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