Electrical Drives MCQs Quiz Multiple Choice Questions & Answers

Electrical Drives MCQs questions answers

Test Your Skills in Electrical Drives Quiz Online

Dive into the realm of Electrical Drives with our comprehensive collection of multiple-choice questions and answers. Whether you're a student studying electrical engineering, an engineer designing drive systems, or simply intrigued by the mechanisms behind electric motors, our meticulously curated selection covers a wide range of topics. Explore fundamental concepts such as motor types, drive control methods, power electronics, and practical applications in industries ranging from manufacturing to transportation. With our user-friendly interface and detailed explanations, mastering the complexities of electrical drives has never been more engaging and accessible. Start your journey towards understanding the backbone of modern electromechanical systems today!

Electrical Drives Questions with Answers

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

16. The basic elements of a electric drive are

17. The concept of V/f control of inverters driving induction motors resuls in

18. The heating time constant of an electrical machine gives an induction of its

19. The power input to a 3 - F induction motor is 60 kW and stator loss is 1 kW the rotor cu loss per phase is

20. The slip of an induction motor during DC rheostatic braking is

21. What are the constituents in speed time curve of train?

22. What type electric drive is used in cranes?

23. Which braking is not possible in series motor?

24. Which of the following are electrical braking methods ?

25. Which speed control method preferred for constant torque drive?

26. While operating on variable frequency supplies, the AC motor requires variable voltage in order to


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