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FAULTS THEIR CAUSES AND REMEDIES OF ALTERNATORS MCQs – CHAPTER 7 DAE

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1. What is the most likely cause of abnormal currents and voltages in a 3-phase salient pole type alternator?





2. What is the most likely cause of reduced output voltage and reactive power in a 3-phase salient pole type alternator?





3. What is the most likely cause of oscillations in speed, torque, voltage, and current in a 3-phase salient pole type alternator?





4. What is the main function of an alternator?





5. What is a common cause of alternator failure due to battery issues?





6. What is a symptom of a faulty alternator that causes a short circuit?





7. What is a component of an alternator that can wear down over time and affect its performance?





8. What is a device that connects the negative end of a battery to the vehicle’s frame and can cause alternator problems if it malfunctions?





9. What is a test that can be done to diagnose an alternator problem caused by AC voltage leak?





10. What is a common problem with alternators on newer, more complex cars that requires more sophisticated diagnosis?





11. What is a factor that can affect the service interval of an alternator and lead to premature failure?





12. What is a possible consequence of having a defective alternator while driving?





13. What is a recommended remedy for dealing with a faulty alternator?





14. What is the most likely cause of abnormal currents and voltages in a smooth cylindrical type 3-phase non-salient pole type alternator?





15. What is the most likely cause of reduced output voltage and reactive power in a smooth cylindrical type 3-phase non-salient pole type alternator?





16. What is the most likely cause of oscillations in speed, torque, voltage, and current in a smooth cylindrical type 3-phase non-salient pole type alternator?





17. What is the name of the rotating magnetic field that produces power in an alternator?





18. What is the name of the stationary winding that carries alternating current in an alternator?





19. What is the name of the device that converts alternating current to direct current in an alternator?





20. What is the name of the device that controls the output voltage of an alternator?





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