PSC Previous Question-Skilled assistant grade II-6/2015

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#1. A semiconductor without any impuritiy is known as....?

#2. A transformer which increase the voltage level is known as....?

#3. In single phase energy meter .... type damping is used:

#4. DOL starter do not reduce......?

#5. ln 3 phase supply system motors "single phasing" means:

#6. For holding object , cutting and twisting wires which tool is used:

#7. A battery is a combination of...?

#8. In earthihg which of the following is used as earth lectrodes:

#9. A device which converts electrical energy into mechanical energy is termed as :

#10. In two wattmeter method of power measurement phase angle is above 60, then total power is:

#11. An instrument which is used to test the insulation resistance is:

#12. Positive electrode in a volta cell is :

#13. Which of the following is used as a filament in metal filament lamp:

#14. In a electric mixer ..... type motor is used:

#15. ACSR conductor is used in....:

#16. ln a single phase system of distribution service connection is made by .....w ire:

#17. Transformer oil is a type of....:

#18. Cleat wiring is used for:

#19. Semiconductor have .... type of temperature coefficient of resistance:

#20. Power factor is the ratio of resistance and....:

#21. In an electric heater, heating coil is generally made upon...?

#22. Electricity is a form of..

#23. MCB means....?

#24. A transistor has.....PN junction?

#25. .......type single phase motor cannot change its direction of rotation?

#26. SMPS Means..

#27. The pressure plate of an ordinary electric iron made by...?

#28. Sodium vapour lamp is best suited for...?

#29. Electrically charged atom is generally termed as...?

#30. According to indian electricity rule, total earth resistance should be less than....?

#31. Carbon arc lamp were generally used in....?

#32. Conductors have.......specific resistance?

#33. For plate earthing, the size of copper plate is....?

#34. A commutator is a device used in DC generators to convert...?

#35. Breather of a distribution transformer contains..?

#36. Open circuit test conducted in a transformer to find out.....?

#37. Flemmings right hand rule used to find out....?

#38. To reduce hysteresis loss the core of a DC machines is generally made of....?

#39. Wire gauge is used to measure....of a conductor?

#40. To change DOR of a 3phase motor...?

#41. Negative electrode of dry cell is made up of....?

#42. In three phase power supply system, earth wire is inducted by...?

#43. A two coil heater gives its maximum heat output,when the coils are in....?

#44. In a single phase system of supply, which of the following is used to test the supply correctly?

#45. Transformers and alternators are generally rated in...?

#46. In a domestic refrigerator, heat inside is taken out through....?

#47. Germanium and silicon are generally used as....:

#48. In alternators supply is taken out through...?

#49. Which of these is the strongest diamagnet material?

#50. In a single phase motor, centrifugal switch is used to disconnect....?

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