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Troubleshooting and Repair of a Power Supply MCQs – Chapter 3 DAE

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1. . Regulated power supplies are used in __________





2. . The voltage regulator output impedance is _______





3. . The Zener current is maximum when the load current is ___________





4. . The Zener diode made of _______





5. . The regulated DC power supply also called ________





6. . Rectification can be done by using ______





7. . The output of the rectification is ______





8. . The circuits are ________ in switch-mode power supply





9. . In switch-mode power supply the regulation of voltage is done by controlling _________





10. . The noise and interference in switch-mode power supply is _______









11. . A Zener diode utilises ………… characteristic for voltage regulation





12. . Another name for Zener diode is ………… diode





13. . Which of the following can be a source of supply in dc power supplies?





14. . Which of the following might not be needed in a power supply?





15. . In a supply designed to provide high power at low voltage, the best rectifier design would probably be:





16. . The part of a power supply immediately preceding the regulator is:





17. . Transient suppression minimizes the chance of:





18. . If a half-wave rectifier is used with 117-V rms ac (house mains), the average dc output voltage is about:





19. . The output of a rectifier is:





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