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Electrical Engineering Practice Test 2
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Avg score: 84% • Most missed: “When the armature of a D.C. motor rotates, e.m.f. induced is”

Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism.

Electrical engineers design, develop, test, and supervise the manufacture of electrical equipment, such as electric motors, radar and navigation systems, communications systems, or power generation equipment. Electrical engineers also design the electrical systems of automobiles and aircraft.

Electrical Engineering Practice Test 2
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25 Questions

1. To get the speed of D.C, motor below the normal without wastage of electrical energy is used.
2. The condition for maximum power in case of D.C. motor is
3. Which D.C. motor is generally preferred for cranes and hoists ?
4. Which one of the following is not the function of pole shoes in a D.C. machine ?
5. Torque developed by a D.C. motor depends upon
6. What will happen if the back e.m.f. of a D.C. motor vanishes suddenly?
7. The current drawn by the armature of D.C. motor is directly proportional to
8. The speed of a D.C. shunt motor more than its full-load speed can be obtained by
9. In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be
10. Regenerative method of braking is based on that
11. For a D.C. shunt motor if the excitation is changed
12. If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking
13. The main disadvantage of the Ward-Leonard control method is
14. Following motor is used where high starting torque and wide speed range control is required.
15. Which of the following method of speed control of D.C. machine will offer minimum efficiency ?
16. In a D.C. shunt motor, speed is
17. Which of the following motors one will choose to drive the rotary compressor ?
18. In a differentially compounded D.C. motor, if shunt field suddenly opens
19. As there is no back e.m.f. at the instant of starting a D.C. motor, in order to prevent a heavy current from flowing though the armature circuit
20. Which D.C. motor will be suitable along with flywheel for intermittent light and heavy loads?
21. The losses occurring in a D.C. generator are given below. Which loss is likely to have highest proportion at rated load of the generator ?
22. Which of the following loss in a D.C. generator is dissipated in the form of heat?
23. Three point starter can be used for
24. Which of the following motor has the poorest speed regulation ?
25. Which motor has the poorest speed control?

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