Q1. What is the primary function of a transformer?
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Q2. In which type of machine is the armature placed on the stator?
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Q3. What is the basic principle of operation of a DC motor?
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Q4. Which of the following is the main component of a transformer?
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Q5. What is the purpose of a commutator in a DC machine?
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Q6. In an induction motor, which of the following is responsible for the production of the rotating magnetic field?
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Q7. Which of the following is true for a synchronous motor?
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Q8. Which of the following is NOT a type of electrical machine?
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Q9. What is the typical efficiency range of an induction motor?
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Q10. What is the function of the slip in an induction motor?
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Q11. What is the main difference between a generator and a motor?
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Q12. Which of the following is the characteristic of a DC generator?
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Q13. Which component is responsible for voltage regulation in a transformer?
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Q14. What is the primary purpose of a surge tank in a hydroelectric power plant?
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Q15. What type of power loss occurs in the windings of electrical machines?
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Q16. What is the function of the stator in a synchronous motor?
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Q17. What type of starter is used for starting large squirrel cage induction motors?
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Q18. What is the main purpose of the armature in a DC machine?
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Q19. What is the effect of increasing the supply frequency on the size of a transformer?
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Q20. What is the function of the rotor in an induction motor?
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