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A.C. Motors Introduction MCQs – CHAPTER 3 DAE

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1. An electric motor is a machine that converts;





2. Motors which operate on AC supply are called;





3. Single-phase AC motors are commonly used in;





4. Single-phase motors with very low power rating are called;





5. Single-phase motors cannot start automatically because;





6. The motor can start when;





7. Single-phase motors are converted to two-phase motors to;





8. AC motors are preferred over DC motors because;





9. AC motors have an advantage over DC motors in that;





10. According to the principle of operation, a synchronous motor can be;





11. Single-phase induction motors include;





12. Commutator motors in single-phase include;





13. Classification of motors according to type of current includes;





14. According to speed, AC motors can be;





15. According to structural features, AC motors can be;





16. Shaded pole motors are generally;





17. Fractional horse power motors are usually;





18. AC motors can improve;





19. The universal motor belongs to;





20. Split-phase motors are a type of;





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