DC Motors MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on DC Motors, a fundamental topic in the field of DC Machines. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our DC Motors MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of DC Motors mcq questions that explore various aspects of DC Motors problems. Each MCQ is crafted to challenge your understanding of DC Motors principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace DC Machines tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our DC Motors MCQs are your pathway to success in mastering this essential DC Machines topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of DC Motors. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your DC Motors knowledge to the test? Let's get started with our carefully curated MCQs!

DC Motors MCQs | Page 5 of 13

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Discuss
Answer: (c).The resistance is added into field circuit
Q42.
How much torque is ensured by resistance adding arrangement in 3-point starter?
Discuss
Answer: (c).High finite
Q43.
The resistance of NVC is _______
Discuss
Answer: (a).Small
Discuss
Answer: (a).In the case of failure of field current
Discuss
Answer: (c).If armature current increases beyond certain value
Q46.
In 4-point starters the resistance is added in series with NVC because __________________
Discuss
Answer: (c).To limit the NVC current
Q47.
What will be the ฮณ value for starter taking 4 steps, where ratio of resistance at maximum allowable current to armature resistance is equal to 1.8?
Discuss
Answer: (a).1.2164
Q48.
Maximum allowable current for a 240-V DC shunt motor is equal to 65 A. Minimum allowable current for same is equal to 40 A. What will be the value of ฮณ?
Discuss
Answer: (c).1.625
Q49.
For a certain machine having ฮณ = 1.8, we are using starter with 5 steps. What will be the resistance at step 3 if step 2 resistance is equal to 2 โ„ฆ?
Discuss
Answer: (b).1.111
Discuss
Answer: (a).ฮณ = rโ‚™/rโ‚™โ‚‹โ‚