Electrical Drives MCQ Questions and Answers for Practice

Welcome to our Electrical Drives MCQ Quiz Category! This section is designed to help students and exam aspirants test their knowledge and prepare effectively for exams and interviews.

About Electrical Drives MCQ Questions

Electrical Drives MCQs cover essential topics such as motor control, drive systems, and power electronics. These questions are crafted to deepen your understanding of how electrical motors and drives operate in various applications, from industrial to residential settings.

Why Practice Electrical Drives Objective Questions?

Practicing these objective questions offers numerous benefits. They help you reinforce your knowledge, identify weak areas, and prepare for both academic exams and professional interviews. Regular practice enhances your problem-solving skills and boosts your confidence.

Who Should Use These MCQs?

  • Students preparing for school or college exams
  • Competitive exam aspirants
  • Candidates preparing for interviews

Electrical Drives MCQ Questions for Practice

1. To save energy during braking ................. braking is used?

2. A 3 - F induction motor draws an electric current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the electric current drawn from the mains will be

3. A four quadrant operation requires

4. A motor has a thermal heating time constant of 50 mm. When the motor runs continuous of full scale, its final temperature rise is 80° C, what would be the temperature rise after 1 hour, if the motor runs continuously on full load?

5. An elevator drive is required to operate in

6. Electric drive is becoming more and more popular because

7. For an IM to operate in braking region slip should be always

8. Full form of VVVF control

9. High braking torque produced in

10. In 4 quadrant operation of a hoist 3rd quadrant represents

11. In case of kiln drives, starting torque is

12. In industries which electrical braking is preferred?

13. In which braking back emf exceeds supply voltage?

14. Polarity of supply voltage is reversed in which type of braking?

15. Speed control by variation of field flux results in

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