Mcq of dc motor
WebNext ». This set of Electrical Machines Multiple Choice Questions & Answers (MCQs) focuses on “Speed Control of DC Motors”. 1. The PWM control of DC motor varies … Web21 mrt. 2024 · Get DC Motor Characteristics Multiple Choice Questions (MCQ Quiz) with answers and detailed solutions. Download these Free DC Motor Characteristics MCQ …
Mcq of dc motor
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WebMCQ on DC Motor Electrical Ride DONE 61) A DC shunt motor takes 5 A at 100 V, when running light. Shunt field resistance is 50 Ω and armature resistance is 0.2 Ω. What is the voltage at the brushes ? 412 W 298 W 305 W 204 W ANSWER EXPLANATION 62) The back e.m.f of a DC motor depends on Field flux Shape of conductors Type of slip rings
WebMCQ DC Motor Multiple Choice Questions and Answers 1. Consider the following statements regarding speed control of dc motors: Ward Leonard method is suitable for constant torque drive. Field control method facilitates speed control below the base speed. Armature resistance control method is more efficient when compared to Ward Leonard … Web13 apr. 2024 · There are various types of dc motor starters, such as 2 point starter, 3 point starter, 4 point starter, no-load release coil starter, thyristor controller starter, etc. The …
Web23 mrt. 2024 · DC Motor Starter Question 1: A Starter is necessary to start a DC motor because: DC motors do not have starting torque at starting, the value of back-EMF is zero initially, high starting torque is required it restricts initial high armature current that exists, as the value of starting back-EMF is zero Answer (Detailed Solution Below) WebMultiple choice questions on dc machines topic dc motor control. Practice these MCQ questions and answers for preparation of various competitive and entrance exams. ...
Web24 feb. 2024 · Voltage Equation of DC Motor Question 1 Detailed Solution For a dc motor from the power equation, it is known that, P m = Gross mechanical power developed = E b I a = VI a - I a2 R a Where, V = Applied voltage E b = Back emf I a = Armature current R a = Armature resistance For maximum P m, d P m d I a = 0 ⇒ 0 = V − 2 I a R a ⇒ I a R a = V 2
WebDC Motors The section contains questions and answers on dc motors basics and starting, speed control of shunt and series motor, dc motors braking and ward leonard speed … baumaterial giba ag birsfeldenWebA DC motor has the following specifications: 10 Hp, 37.5 A, 230 V; flux/pole = 0.01 Wb, number of poles = 4, number of conductors = 666, number of par... View Question A separately excited DC motor runs at 1000 rpm on no load when its armature terminals are connected to a 200 V DC source and the rated voltage is appl... View Question timpe \u0026 mock gmbhWeb74) In a DC motor, speed control by varying the armature circuit resistance provides a. 75) In a DC shunt motor, speed control by the variation of field flux will give. 76) Two DC … baumaterialien antikWebThis 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) … tim petrovic pgaWebThis set of Electrical Machines Multiple Choice Questions & Answers (MCQs) focuses on “DC Machine Applications”. 1. Inspite of heavy initial investments, dc motors are used due to _____________ a) flexibility and ease of control b) lower losses c) improved power factor of the system d) all of the mentioned View Answer 2. tim petrovic amazing puttWebPart 7 ਕਰੋ PSPCL ਲਾਈਨਮੈਨ ਅੱਪਰੈਂਟੀਸਸ਼ਿਪ ਦੀ ਤਿਆਰੀ ਪੰਜਾਬੀ ਵਿੱਚ ll PSTCL ਭਰਤੀ 2024 ... baumaterial 50er jahreWebThis 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 … timpex novi sad