objective questions on applications of dc generators

DC Generators Objective Type Questions and Answers ...

Home Electrical MCQ DC Generators Objective Type Questions and Answers DC Generators Objective Type Questions and Answers Electrical MCQ Edit Practice Test: Question Set - 11. 1. The bearings used to support the rotor shafts are generally (A) Ball bearings (B) Bush bearings (C) Magnetic bearings (D) Needle bearings ...

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Electrical Engineering Electrical Machines multiple choice questions on dc generator # 11. multiple choice questions on dc generator # 11 Unknown 7:52 PM. Unknown. This are some of the multiple choice questions that are asked in Indian engineering services check out and comment if you have any doubts..... 1) A 4-pole dc generator is running at ...

4. DC MOTORS - uav.ece.nus.edu.sg

small motor applications include motors used in automobiles, robots, hand power tools and food blenders. Micro-machines are electric machines with parts the size of red blood cells, and find many applications in medicine. Electric motors are broadly classified into two different categories: DC (Direct Current) and AC (Alternating Current).

What are the practical applications of dc generator? - Quora

Jan 21, 2018· With the advent of AC current and hence alternator, dc generators have got a question mark on their usage. Because for DC application now-a-days rectifiers and filters are used which are cheap and economical. But that doesn't make DC generator ext...

DC Generator: Working Principle & Diagrams | Electrical4U

Jan 13, 2019· The above content is the basic working principle of DC generator, explained by single loop generator model. The positions of the brushes of DC generator are so that the change over of the segments a and b from one brush to other takes place when the plane of rotating coil is at a right angle to the plane of the lines of force. It is to become ...

DC MOTOR – Basics, Types & Application - elprocus.com

Geared motors commonly consist of a DC brush motor and a gearbox attached to the shaft. Motors are distinguished as a geared by two connected units. It has many applications due to its cost of designing, reduces the complexity and constructing applications such as industrial equipment, actuators, medical tools and robotics.

Applications of DC Generators | Electrical4U

At present time the applications of DC generators become very limited because of technical and economic reasons. Now a days the electric power is mainly generated in the form of alternating current with the help of various power electronics devices.

DC Machines Quiz Questions | Electrician Exams Practice Tests

Earthing / Grounding Quiz Questions; Power Quality Quiz Questions; DC Machines Quiz Questions; Single Phase Motors Quiz Questions; Basic Electronics Quiz Questions; Induction Motor Quiz Questions; Synchronous Machine Quiz Questions; Fuse Quiz Questions; Lighting / Illumination Quiz Questions; Switches Quiz Questions; Panelboards Quiz Questions ...

DC Generator multiple choice questions and answers | MCQ ...

MCQ quiz on DC Generator multiple choice questions and answers on DC Generator MCQ questions quiz on DC Generator objectives questions with answer test pdf. DC Generator MCQ Questions and Answers Quiz. 1. In a four-pole D.C. machine . all the four poles are north poles;

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Multiple choice questions on dc generator # 14 Unknown 1:13 AM. ... Hi friends, check out this objective questions on electrical engineering and comment here if you have any doub... multiple choice questions on induction machines # 14 Hi friends, this post is about induction motor objectives. ...

DC Motor Objectives: Part 7 - Electrical Objective Questions

Sep 11, 2012· Electrical Machine: DC Motor Objective Questions Answers ELECTRICAL OBJECTIVE QUESTIONS WITH ANSWERS ... The sole purpose of a commutator in a dc generator is to (a) Increase output voltage (b) Reduce sparking at brushes ... DC Machine Multiple Choice Questions with Solutions: Part-12; Transformers Objective Questions: Part-9;

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Electrical Engineering Electrical Machines Multiple choice questions on dc generator # 18. Multiple choice questions on dc generator # 18 ... In a dc compound generator, "flat compound" characteristic, required for certain applications, may be obtained by connecting a variable resistance A) across the series field ... multiple choice questions ...

DC Motors Application in Thermal Power Plant | Electrical ...

DC Motors Application in Thermal Power Plant In thermal power plants dc motors are employed for certain control and critical emergency operations which are supplied by dedicated batteries. DC motors operate as backup drives for normal ac drive systems when ac power supply to the plant is lost.

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8) 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 and shunt field loss is

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These are some multiple choice questions on dc generators which has scope to ask in competitive exams. 1) The principle of dynamically induced emf is utilised in A) Transformer B) choke C) generator D) thermocouple Ans: C 2) The field coils of a dc generator are usually made of A) Mica B) Copper

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Commutators will convert AC to DC in DC generators and vice versa in DC motors. Commutator is a cylindrical structure attached to the armature and mounted on the same shaft. In generator the main function of commutator is to facilitate collection of electric current from the armature conductors and to convert the alternating emf induced(AC) in the armature conductors into unidirectional emf ...

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Multiple Choice Question (MCQ) of Electronics page-17:241. Which of the following statement is true? a) The saturation voltage V CF of silicon transistor is more than germanium transistor. b) The saturation voltage V CE for germanium transistor is more than silicon transistor. c) The saturation voltage V CE for silicon transistor is same as that for germanium.

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Home MCQ DC Generators Multiple Choice Questions with Answers on DC Generators - Set 08 Multiple Choice Questions with Answers on DC Generators - Set 08 MCQ DC Generators Edit Practice Test: Question Set - 08. 1. Armature reaction in a generator results in (A) Demagnetization of leading pole tip and magnetization of trailing pole tip ...

Objective Questions on Applications of DC Generators ...

0102030405060708 A homopolar generator usually has low voltage and high current. low voltage and low current. high voltage and ELECTRICAL STUDY APP Objective Questions on Applications of DC Generators

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Engineering interview questions,multiple choice objective type questions,seminor topics,lab viva and answers,online quiz test pdf free download,faqs mcqs ... 100 TOP Objective D.C. Generators Questions and Answers pdf 91. In over compounded generator, full load terminal voltage is ... A 220 V D.C. generator is run at full speed without any ...

DC Machine Multiple Choice Questions with Solutions: Part-12

Sep 25, 2015· DC Motor DC Generator Multiple Choice Questions with Solutions: [1] Which of the following statements is false? (a) A DC motor converts electrical energy to mechanical energy (b) The efficiency of a DC motor is the ratio input power to output power (c) A DC generator converts mechanical power to electrical power

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Aug 18, 2019· DC Generator objective type question and answer in Electrical Engineering | DC generator multiple choice questions and answers (mcq) - इस विडियो में मैंने SS...

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Applications of DC Machines In the present day world, the electrical energy is generated in bulk in the form of an alternating current. Hence, the use of DC machines, i.e., DC generators …

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DC series motor has very good starting torque capabilities compared to induction motors and synchronous motors. So still in present traction applications DC series motors are used In some applications such as paper mills and roll mills speed control of the motor drive should be accurate else the process will be failure.

Multiple Choice Questions on Alternating Current and Voltage

The Following Section consists of Multiple Choice Questions on Alternating Current and Voltage. Set 1; Set 2 ) ) Post navigation. Multiple Choice Questions on Magnetism and Electromagnetism. Multiple Choice Questions on RC Circuits . Examtime Quiz app for …

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Clarifying rotating equipment fundamentals will aid in electrical design and troubleshooting.Rotating equipment is so common, yet so misunderstood, that even highly experienced electricians and engineers are often plagued with questions about their operation. This article will answer seven of the most commonly asked questions. The explanations are brief and practical due to

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Sep 02, 2014· Home » D.C. Generators Quiz Questions and Answers » 124 TOP D.C. Generators - Electrical Engineering Multiple choice Questions and Answers Tuesday, 2 September 2014 124 TOP D.C. Generators - Electrical Engineering Multiple choice Questions and Answers