Dive into the world of Electrical Machines with our comprehensive collection of multiple-choice questions and answers. Whether you're a student studying electrical engineering, an engineer designing power systems, or simply interested in the workings of motors and generators, our meticulously curated selection covers a wide range of topics. Explore fundamental concepts such as electromagnetic principles, motor operation, generator design, and practical applications in industries and utilities. With our user-friendly interface and detailed explanations, mastering the complexities of electrical machines has never been more engaging and accessible. Start your journey towards understanding the backbone of electrical power systems today!
1. The power factor of the induction motor will be __________ if the magnetizing current is __________
2. The magnetizing current of an induction motor will be __________ for __________ air gap
3. In induction motors, small air gap __________ power factor and __________ noise level
4. In induction motors, the difference between the number of stator and rotor slots should not be
5. Induction motor which of the following depends on the leakage reactance?
6. The use of double squirrel cage winding on the rotor provides
7. In induction motor if the number of rotor slots is equal to the stator slots then
8. In squirrel cage motors, skin effect occurs in
9. A synchronous machine having large length of the air gap will have
10. Damper windings are provided in synchronous machines to
11. Which of the following motors has a high starting torque?
12. The starting winding of a single-phase motor is placed in
13. In a DC series motor increase in load current results in
14. Which DC motors has approximately constant speed?
15. An electric machine will have high efficiency when
16. Inter poles in DC machines are provided to reduce
17. DC motor yoke is generally made of
18. The output of a rotating electrical machine is limited by
19. The dimensions of a dc machine primarily depend on
20. Skewing of rotor slots helps in
21. The harmonics in rotating machines are generated due to
22. The effect of harmonics in rotating machines can be minimized by
23. In dc machines the number of poles is generally decided by
24. In dc machines by increasing the number of poles, all of the following reduce except:
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