30 Jun 2025 ELECTRICIAN 1st YEAR MODULE – Basic wiring practice by admin | posted in: nimi online test, NSQF, NSQF LEVEL 4 | 0 0% Question 1 of 69 1. Which tool is used to bend conduits? Hickey Pipe vice Coupler Bench viceQuestion 1 of 69Question 2 of 69 2. What is the application of DC series MCB? Locomotives AC motor DC motor Air conditionersQuestion 2 of 69Question 3 of 69 3. What is this type of wiring called? Tunnel wiring Godown wiring Hostel wiring Staircase wiringQuestion 3 of 69Question 4 of 69 4. Where is the phase conductor looped in a looping wiring system? Distribution box Socket connection Switch box Junction boxQuestion 4 of 69Question 5 of 69 5. Which lamp holder is used for lamps above 300 watts? Goliath screw holder Edison screw holder Bracket holder Angle holderQuestion 5 of 69Question 6 of 69 6. What type of fuse is this? Diazed screw type cartridge fuse High rupturing capacity fuse Knife edge cartridge fuse Ferrule contact cartridge fuseQuestion 6 of 69Question 7 of 69 7. How many two-way switches with intermediate switch are needed to control one lamp from three places? 2 1 3 4Question 7 of 69Question 8 of 69 8. What is this wiring method called? Loop in method using 2 plate ceiling rose Looping back method Joint box method Loop in method using 3 plate ceiling roseQuestion 8 of 69Question 9 of 69 9. What is the purpose of an ELCB? Detects circuit faults Protects from overload Monitors residual current Protects from short circuitQuestion 9 of 69Question 10 of 69 10. What is the purpose of flexible cords in domestic wiring? Connection for transportable appliances Run cable through ceiling holes Concealed wiring Permanent connectionQuestion 10 of 69Question 11 of 69 11. Why is the tree system of wiring most suitable for multistoried buildings? Constant voltage distribution Offers minimum voltage drop Easy load balancing Easy fault finding with many fusesQuestion 11 of 69Question 12 of 69 12. Which type of switch is used in the circuit? Intermediate switch Multiposition switch Two way switch One way switchQuestion 12 of 69Question 13 of 69 13. What is the function of bimetallic strip in MCB? Earth leakage protection Short circuit protection Over voltage protection Over load protectionQuestion 13 of 69Question 14 of 69 14. Which circuit breaker is used above 100A current? Moulded Case Circuit Breaker (MCCB) Miniature Circuit Breaker (MCB) Earth Leakage Circuit Breaker (ELCB) Residual Current Circuit Breaker (RCCB)Question 14 of 69Question 15 of 69 15. Which type of MCB is suitable for halogen lamps? 'DC' series MCBs 'L' and 'G' series MCBs 'L' series MCBs 'G' series MCBsQuestion 15 of 69Question 16 of 69 16. What does MCB stand for? Miniature Circuit Breaker Maximum Current Breaker Minimum Current Breaker Minute Control BreakerQuestion 16 of 69Question 17 of 69 17. What is the purpose of a circuit diagram in wiring installation? Estimate various accessories Quickly inform circuit purpose Show physical position of accessories Show schematic connectionsQuestion 17 of 69Question 18 of 69 18. What is a die stock set used for? Cut internal threads on cylindrical pipe Cut external threads on cylindrical pipe Cut external threads on square pipe Cut internal threads on rectangular pipeQuestion 18 of 69Question 19 of 69 19. What is the name of this wiring circuit symbol? Plug and socket Link Fuse Pull switchQuestion 19 of 69Question 20 of 69 20. What is the advantage of concealed wiring? Easy to maintain Less voltage drop Protection against moisture High insulation resistanceQuestion 20 of 69Question 21 of 69 21. What is the name of the conduit accessory? Inspection elbow Solid elbow Inspection Bend Solid bendQuestion 21 of 69Question 22 of 69 22. What does ECC stand for? Earth Conductor Continuity Earth Carrying Conductor Earth Continuity Cable Earth Continuity ConductorQuestion 22 of 69Question 23 of 69 23. How many link clips are packed per BIS rules in cardboard boxes? 100 clips 150 clips 50 clips 75 clipsQuestion 23 of 69Question 24 of 69 24. What is the fusing factor for high rupturing capacity fuses (HRC)? 1.1 1.4 1.7 1.0Question 24 of 69Question 25 of 69 25. How are conduit pipes specified? Wall thickness in mm Length in metre Inner diameter in mm Outer diameter in mmQuestion 25 of 69Question 26 of 69 26. Which type of load is protected by the L-series MCB? Geyser Hand tools Air conditioner MotorsQuestion 26 of 69Question 27 of 69 27. Which accessories operate portable appliances? Outlet accessories Safety accessories Controlling accessories Holding accessoriesQuestion 27 of 69Question 28 of 69 28. What is this electrical appliance accessory called? Three pin plug 2 Pin plug Flat connector with side entry Iron connector with direct entryQuestion 28 of 69Question 29 of 69 29. What is the name of this type of relay? Impulse relay Electromagnetic relay Mercury wetted contact relay Dry reed relayQuestion 29 of 69Question 30 of 69 30. Where is the Iron Clad Double Pole (ICDP) main switch typically used? Three phase power circuit installations Single phase domestic installations Large industrial installations Control main or branch circuitsQuestion 30 of 69Question 31 of 69 31. What is this accessory symbol called? Multi position switch single pole One way switch two poles Bell push switch Two way switchQuestion 31 of 69Question 32 of 69 32. What is the maximum PVC conduit size for safe cold bending? 50 mm 25 mm 19 mm 12 mmQuestion 32 of 69Question 33 of 69 33. What does the symbol marked 'X' indicate? Number of switches to be connected Number of battern (or) pipe to be fixed Number of clamps (or) clips to be fixed Number of wires run on the limbQuestion 33 of 69Question 34 of 69 34. Which equipment uses 'L' series MCB? Motors Air conditioner General lighting Halogen lampQuestion 34 of 69Question 35 of 69 35. What is the purpose of underwriter's knot for pendent holder connection? Prevent excessive cap cover pressure Increase mechanical strength Reduce the strain from the terminals of accessories Avoid loose connectionsQuestion 35 of 69Question 36 of 69 36. What is the fusing factor for rewireable fuse? 1.4 2.5 1.1 2.1Question 36 of 69Question 37 of 69 37. What happens when using low current rated cable for higher current loads? Load current increases Cable damage due to heat Voltage drop increases Voltage drop decreasesQuestion 37 of 69Question 38 of 69 38. What is this diagram called? Wiring diagram Layout plan Schematic diagram Installation planQuestion 38 of 69Question 39 of 69 39. What does this symbol indicate? Ceiling fan Bracket fan Table fan Exhaust fanQuestion 39 of 69Question 40 of 69 40. What is a group of four insulated conductors called? Pair Layer Core QuadQuestion 40 of 69Question 41 of 69 41. What does AWG stand for? American Wire Gauge American Wire Group American Wire Guard American Wire GradeQuestion 41 of 69Question 42 of 69 42. Why shouldn't home theatre wiring run with power wiring? Avoid leakage current in home theatre wiring Reduce power consumption in power supplies Control temperature in home theatre wiring Avoid electrical interference in audio/video systemQuestion 42 of 69Question 43 of 69 43. How are ceiling roses classified? Holding accessories General accessories Outlet accessories Safety accessoriesQuestion 43 of 69Question 44 of 69 44. Which insulation is needed for proper function and basic protection? Supplementary insulation Double insulation Functional insulation Reinforced insulationQuestion 44 of 69Question 45 of 69 45. What is the standard thread length on rigid conduits as per BIS? 9mm - 20mm 15mm - 30mm 11mm - 27mm 13mm - 25mmQuestion 45 of 69Question 46 of 69 46. Why is copper fuse wire tin-coated? Increase fusing factor Prevent copper oxidation Withstand high temperature Increase mechanical strengthQuestion 46 of 69Question 47 of 69 47. What is the primary function of a circuit breaker? Making contact at abnormal condition Making contact at normal condition Breaking automatically at abnormal condition Physical breaking contact at abnormal conditionQuestion 47 of 69Question 48 of 69 48. Which electrical accessory belongs to general classification? Intermediate switch Pendent lamp holder Ceiling roses FuseQuestion 48 of 69Question 49 of 69 49. What is the name of this electrical accessory? Edison screw type holder Bracket holder Angle swivel lamp holder Goliath Edison screw lamp holderQuestion 49 of 69Question 50 of 69 50. Which conduit type is used for gas-tight explosive installations? Rigid non-metallic conduits Rigid steel conduits Flexible non-metallic conduits Flexible conduitsQuestion 50 of 69Question 51 of 69 51. What is this wiring circuit application? One lamp bright and two lamps dim operation Two lamps controlled by two switches Two lamps dim operation only Two lamps controlled by one switchQuestion 51 of 69Question 52 of 69 52. What type of diagram is this? Circuit diagram Wiring diagram Installation plan Layout diagramQuestion 52 of 69Question 53 of 69 53. What type of relay is this? Dry reed relay Impulse relay Electromagnetic relay Latching relayQuestion 53 of 69Question 54 of 69 54. Which material is used as filler for fixing screw holes on ceilings? Nylon Cement Paper Poly vinyl chlorideQuestion 54 of 69Question 55 of 69 55. Why is loop-in method preferred in domestic wiring? More tappings possible No separate joints needed More sub-circuits possible Easy fault identificationQuestion 55 of 69Question 56 of 69 56. What type of wiring is this? CTS wiring Cleat wiring PVC conduit wiring PVC casing and capping wiringQuestion 56 of 69Question 57 of 69 57. Calculate the earth fault loop impedance if ELCB tripping current is 30 mA? 1666 Ω 166 Ω 16666 Ω 16.66 ΩQuestion 57 of 69Question 58 of 69 58. Which category does fuse accessories belong to? Holding accessories Controlling accessories Outlet accessories Safety accessoriesQuestion 58 of 69Question 59 of 69 59. What happens to earth resistance if earth pipe length increases? Infinity Increases Decreases Remains sameQuestion 59 of 69Question 60 of 69 60. Where is the Tree system of wiring most suitable? Industrial wiring Multi-storied building Godown wiring Domestic wiringQuestion 60 of 69Question 61 of 69 61. What protection does a residual current circuit breaker offer? Protection from over load Protection from short circuit Protection from leakage current Protection from shockQuestion 61 of 69Question 62 of 69 62. Why is separate wiring recommended for home theatre and power wiring? Reduce power loss Avoid electrical interference Avoid electrical fire Maintain constant voltage levelQuestion 62 of 69Question 63 of 69 63. Which relay type works with both AC and DC? Ferred relay Dry reed relay Thermal relay Impulse relayQuestion 63 of 69Question 64 of 69 64. What is this BIS symbol called? Multi-position switch Intermediate switch Two way switch LampQuestion 64 of 69Question 65 of 69 65. What is the purpose of the fuse cut-out at incoming power supply? Maintain stable voltage Protect from leakage current Prevent line overloading Prevent electric shockQuestion 65 of 69Question 66 of 69 66. What is this lighting circuit called? Corridor lighting wiring Tunnel lighting wiring Staircase lighting wiring Godown lighting wiringQuestion 66 of 69Question 67 of 69 67. Which wiring is suitable for temporary installations? Cleat wiring PVC conduit wiring Metal conduit wiring Concealed wiringQuestion 67 of 69Question 68 of 69 68. How many two-way switches are required in godown wiring to control four lamps? 3 2 4 5Question 68 of 69Question 69 of 69 69. What is the term for the time taken by a fuse to interrupt a faulty circuit? Fusing current Fusing factor Time factor Cut-off factorQuestion 69 of 69 Loading...
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