Kerala High Court Helper Answer key
Direct recruitment to the post of Helper.
Question Paper with answer key of the written exam (Kerala High Court Helper) conducted on 21/02/2021 .
#1. What is the disadvantage of solid compared to stranded conductor?
#2. Which test is conducted to locate the faults in UG cables?
#3. Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops?
#4. What is the value of resistance in open circuit?
#5. In which device the air capacitors are used?
#6. What is the reciprocal of inductance in AC Parallel circuit?
#7. Which is used as an electrolyte in lead acid battery?
#8. What purpose the hydrometer is used for during charging of battery?
#9. Which part is losing electron during electrolysis?
#10. Which wiring is suitable for temporary installations?
#11. What is the purpose of ELCB ?
#12. Which principle does the earth resistance tester work on?
#13. What is the unit of luminous flux?
#14. Which type of lighting system is used for flood and industrial lighting?
#15. Which is the cold cathode lamp?
#16. Which is an absolute instrument?
#17. Which material is used to make heating element?
#18. What is the purpose of using laminated core in transformer?
#19. What is the purpose of pole shoe in DC generator?
#20. What is the effect of armature reaction in DC generator?
#21. Which type of DC generator is used for electroplating process?
#22. Which type of instrument is used to test the armature winding?
#23. Which rule determines the direction of current in DC motor?
#24. Which type motor is used to provide high starting torque at variable speed?
#25. What is the working principle of single phase induction motor?
#26. What is the reason to use a permanent capacitor in fan motor circuit?
#27. What is the function of damper windings in AC generator?
#28. What is the function of inverter?
#29. What is the purpose of trip coil used in circuit breakers?
#30. Which is the cause for changing the permeability?
#31. Which type of insulator used at the dead ends of the HT overhead lines?
#32. What does ACSR stand for?
#33. Which type of AC transmission is universely adopted?
#34. Which is the correct sequence operation of key button in BOP of AC drives to change the direction of rotation?
#35. Which turbine is used for high head in hydro electric power plant?
#36. Which fuel is available in plenty in india for power generation?
#37. Which energy is converted into electrical energy by generator?
#38. How interpoles are connected in dc generator?
#39. Which insulation material belongs to class B insulation?
#40. Which type od DG motor is used for constant speed drives?
#41. Which type of DCmotor is used for sudden application of heavy load?
#42. What is the phase displacement between windings in 3 phase motor?
#43. Which fault condition thermal over load relay protects AC induction motor?
#44. Which insulation is used for cuffing in AC winding?
#45. Which method is used for lift and move heavy loads?
#46. Which is the physical hazard?
#47. What is the back ground colour of warning signs in the basic category?
#48. Which PPE is used for the protection from fumes?
#49. Which disposal method of waste save lot of energy?
#50. What is the full form of BIS?
#51. Which is the waste disposal method that produce heat?
#52. Which type of occupational health hazard is cause for infection?
#53. Which condition of the victim is referd as COMA stage?
#54. Which is passive element?
#55. What is the purpose of DIAC in power control circuits?
#56. What is the output DC voltage in half wave rectifier, if the input AC voltage is 24 volt?
#57. Which cable ties are used to bunch the wires?
#58. Which circuit the limit switches are used?
#59. which cell is most often used in digital watches?
#60. Which is used positive electrode in dry cell?
#61. Which device converts sun light into electrical energy?
#62. How the capacity of batteries is specified?
#63. Where square wave inverters are used?
#64. Which is the application of automatic stepped voltage stabilizer?
#65. Which is proportional to the torque in DC motor?