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Chapter 16 POWER ELECTRONICS FOR CONTROL OF A.C. & D.C. MOTORS MCQs

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1. . Speed of d.c. shunt motors are controlled by





2. . With the increase in temperature, the speed of series and shunt motor will





3. . Which method is suitable for the speed control, below and above the normal rated speed of d.c. shunt motor?





4. . The PWM control of DC motor varies _________





5. . Small DC motors have best speed control by _________





6. . The frame of an induction motor is usually made of





7. . In a three phase, delta connection ——-





8. . In a three phase AC circuit, power is measured using a Wattmeter.



9. . The speed of a which type of DC motor is practically constant





10. . The speed of DC motor is:





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