Electrician 1st Sem – NSQF – Module 5 – Magnetism and Capacitors MOCK TEST

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Question 1 of 37

1. What is the S.I unit of Flux density?

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Question 2 of 37

2. What is the unit of capacitance?

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Question 3 of 37

3. What is the unit of Magneto Motive Force (MMF)?

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Question 4 of 37

4. What will be the change in value of capacitance if the distance of the plates are decreased in the capacitor?

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Question 5 of 37

5. Which type of capacitors are used in RF coupling circuit?

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Question 6 of 37

6. Which is a paramagnetic substance?

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Question 7 of 37

7. What will happen, if the polarized electrolytic capacitor is reversely connected?

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Question 8 of 37

8. What is the capacitance value of a capacitor that requires 0.5 coulomb to charge to 35 volt?

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Question 9 of 37

9. Which factor is determining the value of capacitance in capacitor?

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Question 10 of 37

10. Calculate the total value of capacitance of series capacitor circuit.

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Question 11 of 37

11. Which is the cause for changing the permeability?

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Question 12 of 37

12. Which electrical quantity is directly proportional to the eddy current?

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Question 13 of 37

13. What is the unit of Reluctance?

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Question 14 of 37

14. Which is the diamagnetic substance?

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Question 15 of 37

15. What is the effect of the electrolytic capacitor, if open circuit fault occurs?

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Question 16 of 37

16. What is the part marked as 'X' in B.H curve?

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Question 17 of 37

17. How the value of capacitance can be decreased?

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Question 18 of 37

18. What is the function of dielectric insulator in capacitor?

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Question 19 of 37

19. What indicates the shape of a BH curve (Hysteresis loop) of material?

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Question 20 of 37

20. Which property of magnet is illustrated?

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Question 21 of 37

21. Which is the diamagnetic substance?

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Question 22 of 37

22. How can you increase the pulling strength of an electromagnet?

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Question 23 of 37

23. What is the total inductance if 3 inductors (L1, L2 and L3) are connected in series?

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Question 24 of 37

24. In which device the air capacitors are used?

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Question 25 of 37

25. Calculate the total capacitance value in the circuit.

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Question 26 of 37

26. Which factor affects the polarity of the electromagnet?

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Question 27 of 37

27. Which type of capacitor is used for space electronics?

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Question 28 of 37

28. Which method of magnetization is used to make commercial purpose permanent magnets?

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Question 29 of 37

29. What is the effect of inductance if the distance between the turns increases?

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Question 30 of 37

30. What is the unit of permeance?

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Question 31 of 37

31. Which defines the flux density is always lagging behind the magnetising force?

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Question 32 of 37

32. Which is the correct expression of capacitance 'C' if the electric charge is 'Q' and the voltage is 'V'?

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Question 33 of 37

33. What is the similar term in magnetic circuit for "conductance" in electrical circuit?

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Question 34 of 37

34. Which material is the paramagnetic substance?

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Question 35 of 37

35. Which rule is applied to find the direction of magnetic fields in a solenoid coil?

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Question 36 of 37

36. What precaution to be taken before connecting the different voltage rating capacitors in series?

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Question 37 of 37

37. What is the effect on surrounding metal placed in a magnetic field?

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Question 37 of 37


 

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