1. Two Minute Drill Number 23- Residential Improving your skill in code Look Up Increasing Speed Drill Copyright 2008 Ted "Smitty" Smith

2. Directions Left click on the presentation ICON located at the bottom of the slide directory to the left of the this slide. Each slide will transition to the correct answer automatically in 2:00 minutes. The correct answer will transition in 15 seconds. As you progress through the slide show, the time for each question will be reduced. Write down the correct answer to each question and the code reference as it is displayed so you can review them later. This presentation is mostly residential installation.. We have included a few other categories just to help keep you sharp. Copyright 2008 Ted "Smitty" Smith

3. 1. What is the MAXIMUM period allowed for temporary outdoor Christmas decoration lighting for residences? a. 30 days b. 60 days c. 90 days d. 4 months Copyright 2008 Ted "Smitty" Smith

4. 1. c590.3(B) Copyright 2008 Ted "Smitty" Smith

5. 2. When doing box fill calculations, a fixture stud in a ceiling mounted outlet box is an equivalent to _____ conductor(s). a. zero b. one c. two d. three Copyright 2008 Ted "Smitty" Smith

6. 2. b314.16(B)(3) Copyright 2008 Ted "Smitty" Smith

7. 3. A branch-circuit supplying more than one electric baseboard heater in a residential occupancy shall be rated a MAXIMUM of _____. a. 15 amperes b. 20 amperes c. 30 amperes d. 50 amperes Copyright 2008 Ted "Smitty" Smith

8. 3. c424.3(A) Copyright 2008 Ted "Smitty" Smith

9. 4. Disregarding exceptions, when installing electrical metallic tubing (EMT), the run of tubing is required to be securely fastened at LEAST every _____. a. 6 feet b. 10 feet c. 15 feet d. 20 feet Copyright 2008 Ted "Smitty" Smith

10. 4. b358.30(A) Copyright 2008 Ted "Smitty" Smith

11. 5. When calculating the demand load for a one- family dwelling, what total MINIMUM volt- amperes (VA) must be included in the calculations for the small-appliance and laundry circuit loads? a. 4500 VA b. 3000 VA c. 1500 VA d. 6000 VA Copyright 2008 Ted "Smitty" Smith

12. 5. a210.11(C)(1) & (2) 220.52(A) & (B) 2- small appliance circuits @ 1500VA ea = 3000VA 1- laundry circuit @ 1500VA ea = 1500VA Total = 4500VA Copyright 2008 Ted "Smitty" Smith

13. 6. The NEC® mandates the ampacity of UF cable shall be that of _____ conductors. a. 60ºC rated b. 75ºC rated c. 86ºF rated d. 90ºC rated Copyright 2008 Ted "Smitty" Smith

14. 6. a340.80 Copyright 2008 Ted "Smitty" Smith

15. 7. The front edge of a switch box installed in a wall constructed of wood, shall be _____ from the surface of the wall. a. flush with or projected out b. set back a maximum of ¼ inch c. set back a maximum of ½ inch d. set back a maximum of 3/8 inch Copyright 2008 Ted "Smitty" Smith

16. 7. a314.20 Copyright 2008 Ted "Smitty" Smith

17. 8. For dwelling units, where 125 volt, single- phase, 15 and 20 ampere receptacle outlets are installed within at LEAST _____ of the outside edge of a sink in a laundry room, GFCI protection must be provided. a. 4 feet b. 6 feet c. 8 feet d. 10 feet Copyright 2008 Ted "Smitty" Smith

18. 8. b210.8(A)(7) Copyright 2008 Ted "Smitty" Smith

19. 9. For dwelling units, a branch-circuit supplying _____ receptacles outlets is permitted to also supply receptacle outlets in an attached garage. a. outdoor b. bathroom c. laundry room d. kitchen small-appliance Copyright 2008 Ted "Smitty" Smith

20. 9. a210.52(B)(2) 210.11(C)(2) & (3) Copyright 2008 Ted "Smitty" Smith

21. 10. A metal underground water pipe may serve as a grounding electrode if it is in direct contact with the earth for at LEAST ______feet or more. a. 6 b. 8 c. 10 d. 12 Copyright 2008 Ted "Smitty" Smith

22. 10. c250.52(A)(1) Copyright 2008 Ted "Smitty" Smith

23. 11. What is the MAXIMUM allowable cord length for the cord supplying a cord-and-plug connected dishwasher installed under a kitchen counter in a dwelling unit? a. 1 ½ feet b. 2 feet c. 3 feet d. 4 feet Copyright 2008 Ted "Smitty" Smith

24. 11. d422.16(B)(2)(2) Copyright 2008 Ted "Smitty" Smith

25. 12. What is the MINIMUM size copper SE cable with type THHW insulation that may be used as ungrounded, service-entrance phase conductors for a 150 ampere-rated, 120/240-volt, single- phase, residential service? a. 1/0 AWG b. 1 AWG c. 2 AWG d. 3 AWG Copyright 2008 Ted "Smitty" Smith

26. 12. bTbl. 310.15(B)(6) Copyright 2008 Ted "Smitty" Smith

27. 13. For outlet boxes designed to support ceiling- suspended (paddle) fans that weigh more than ______ pounds, the required marking shall include the maximum weight to be supported. a. 20 b. 30 c. 35 d. 70 Copyright 2008 Ted "Smitty" Smith

28. 13. c314.27(D) Copyright 2008 Ted "Smitty" Smith

29. 14. A connection to a driven or buried grounding electrode shall _____. a. be accessible b. not be required to be accessible c. not be permitted to be buried d. be visible Copyright 2008 Ted "Smitty" Smith

30. 14. b250.68(A), Ex. 1 Copyright 2008 Ted "Smitty" Smith

31. 15. What is the MAXIMUM allowable standard size circuit breaker rating that may be used to protect a size 8 AWG copper NM-B cable supplying an electric range? a. 30 amperes b. 40 amperes c. 50 amperes d. 60 amperes Copyright 2008 Ted "Smitty" Smith

32. 15. b334.80 Tbl. 310.16 Copyright 2008 Ted "Smitty" Smith

33. 16. The MAXIMUM number of size 10 AWG conductors permitted in a 4 inch X 1 ¼ inch octagon metal junction box is _____. a. two b. four c. five d. six Copyright 2008 Ted "Smitty" Smith

34. 16. cTbl. 314.16(A) Copyright 2008 Ted "Smitty" Smith

35. 17. Determine the MINIMUM number of 15-ampere, 120-volt general lighting branch-circuits required for a dwelling that has 2,600 square feet of habitable space. a. three b. four c. five d. six Copyright 2008 Ted "Smitty" Smith

36. 17. c220.12 Tbl. 220.12 2600 Sq. Ft. X 3VA (total lighting VA of house) 120 volts X 15 amperes = 1800 VA (one circuit) 7800 VA (house) /1800 VA (one circuit) =4.3 = 5 circuits Copyright 2008 Ted "Smitty" Smith

37. 18. When calculating the total load on a dwelling unit, how many VA per square feet must be included for the general purpose receptacle outlets? a. none b. one c. two d. three Copyright 2008 Ted "Smitty" Smith

38. 18. a220.14(J)(1) Copyright 2008 Ted "Smitty" Smith

39. 19. When calculating the total load for a dwelling unit, what is the MINIMUM load, in VA, that must be added for the two required small appliance branch-circuits? a. 1200 VA b. 1500 VA c. 2400 VA d. 3000 VA Copyright 2008 Ted "Smitty" Smith

40. 19. d220.52(A) 1500 VA X 2 circuits required = 3000 VA Copyright 2008 Ted "Smitty" Smith

41. 20. It shall be permissible to apply a demand factor of _____ percent to the nameplate-rating load of four or more fastened in place electric water heaters in a multi-family dwelling unit. a. 50 b. 75 c. 80 d. 90 Copyright 2008 Ted "Smitty" Smith

42. 20. b220.53 Copyright 2008 Ted "Smitty" Smith

43. End of Drill Click the left mouse button to advance back to the first question. Each question will now be repeated without the timer to give you a chance to review it and find the answer. Clicking the left mouse button will advance the slide to the answer and the code reference. Copyright 2008 Ted "Smitty" Smith

44. 1. What is the MAXIMUM period allowed for temporary outdoor Christmas decoration lighting for residences? a. 30 days b. 60 days c. 90 days d. 4 months Copyright 2008 Ted "Smitty" Smith

45. 1. c590.3(B) Copyright 2008 Ted "Smitty" Smith

46. 2. When doing box fill calculations, a fixture stud in a ceiling mounted outlet box is an equivalent to _____ conductor(s). a. zero b. one c. two d. three Copyright 2008 Ted "Smitty" Smith

47. 2. b314.16(B)(3) Copyright 2008 Ted "Smitty" Smith

48. 3. A branch-circuit supplying more than one electric baseboard heater in a residential occupancy shall be rated a MAXIMUM of _____. a. 15 amperes b. 20 amperes c. 30 amperes d. 50 amperes Copyright 2008 Ted "Smitty" Smith

49. 3. c424.3(A) Copyright 2008 Ted "Smitty" Smith

50. 4. Disregarding exceptions, when installing electrical metallic tubing (EMT), the run of tubing is required to be securely fastened at LEAST every _____. a. 6 feet b. 10 feet c. 15 feet d. 20 feet Copyright 2008 Ted "Smitty" Smith

51. 4. b358.30(A) Copyright 2008 Ted "Smitty" Smith

52. 5. When calculating the demand load for a one- family dwelling, what total MINIMUM volt- amperes (VA) must be included in the calculations for the small-appliance and laundry circuit loads? a. 4500 VA b. 3000 VA c. 1500 VA d. 6000 VA Copyright 2008 Ted "Smitty" Smith

53. 5. a210.11(C)(1) & (2) 220.52(A) & (B) 2- small appliance circuits @ 1500VA ea = 3000VA 1- laundry circuit @ 1500VA ea = 1500VA Total = 4500VA Copyright 2008 Ted "Smitty" Smith

54. 6. The NEC® mandates the ampacity of UF cable shall be that of _____ conductors. a. 60ºC rated b. 75ºC rated c. 86ºF rated d. 90ºC rated Copyright 2008 Ted "Smitty" Smith

55. 6. a340.80 Copyright 2008 Ted "Smitty" Smith

56. 7. The front edge of a switch box installed in a wall constructed of wood, shall be _____ from the surface of the wall. a. flush with or projected out b. set back a maximum of ¼ inch c. set back a maximum of ½ inch d. set back a maximum of 3/8 inch Copyright 2008 Ted "Smitty" Smith

57. 7. a314.20 Copyright 2008 Ted "Smitty" Smith

58. 8. For dwelling units, where 125 volt, single- phase, 15 and 20 ampere receptacle outlets are installed within at LEAST _____ of the outside edge of a sink in a laundry room, GFCI protection must be provided. a. 4 feet b. 6 feet c. 8 feet d. 10 feet Copyright 2008 Ted "Smitty" Smith

59. 8. b210.8(A)(7) Copyright 2008 Ted "Smitty" Smith

60. 9. For dwelling units, a branch-circuit supplying _____ receptacles outlets is permitted to also supply receptacle outlets in an attached garage. a. outdoor b. bathroom c. laundry room d. kitchen small-appliance Copyright 2008 Ted "Smitty" Smith

61. 9. a210.52(B)(2) 210.11(C)(2) & (3) Copyright 2008 Ted "Smitty" Smith

62. 10. A metal underground water pipe may serve as a grounding electrode if it is in direct contact with the earth for at LEAST ______feet or more. a. 6 b. 8 c. 10 d. 12 Copyright 2008 Ted "Smitty" Smith

63. 10. c250.52(A)(1) Copyright 2008 Ted "Smitty" Smith

64. 11. What is the MAXIMUM allowable cord length for the cord supplying a cord-and-plug connected dishwasher installed under a kitchen counter in a dwelling unit? a. 1 ½ feet b. 2 feet c. 3 feet d. 4 feet Copyright 2008 Ted "Smitty" Smith

65. 11. d422.16(B)(2)(2) Copyright 2008 Ted "Smitty" Smith

66. 12. What is the MINIMUM size copper SE cable with type THHW insulation that may be used as ungrounded, service-entrance phase conductors for a 150 ampere-rated, 120/240-volt, single- phase, residential service? a. 1/0 AWG b. 1 AWG c. 2 AWG d. 3 AWG Copyright 2008 Ted "Smitty" Smith

67. 12. bTbl. 310.15(B)(6) Copyright 2008 Ted "Smitty" Smith

68. 13. For outlet boxes designed to support ceiling- suspended (paddle) fans that weigh more than ______ pounds, the required marking shall include the maximum weight to be supported. a. 20 b. 30 c. 35 d. 70 Copyright 2008 Ted "Smitty" Smith

69. 13. c314.27(D) Copyright 2008 Ted "Smitty" Smith

70. 14. A connection to a driven or buried grounding electrode shall _____. a. be accessible b. not be required to be accessible c. not be permitted to be buried d. be visible Copyright 2008 Ted "Smitty" Smith

71. 14. b250.68(A), Ex. 1 Copyright 2008 Ted "Smitty" Smith

72. 15. What is the MAXIMUM allowable standard size circuit breaker rating that may be used to protect a size 8 AWG copper NM-B cable supplying an electric range? a. 30 amperes b. 40 amperes c. 50 amperes d. 60 amperes Copyright 2008 Ted "Smitty" Smith

73. 15. b334.80 Tbl. 310.16 Copyright 2008 Ted "Smitty" Smith

74. 16. The MAXIMUM number of size 10 AWG conductors permitted in a 4 inch X 1 ¼ inch octagon metal junction box is _____. a. two b. four c. five d. six Copyright 2008 Ted "Smitty" Smith

75. 16. cTbl. 314.16(A) Copyright 2008 Ted "Smitty" Smith

76. 17. Determine the MINIMUM number of 15-ampere, 120-volt general lighting branch-circuits required for a dwelling that has 2,600 square feet of habitable space. a. three b. four c. five d. six Copyright 2008 Ted "Smitty" Smith

77. 17. c220.12 Tbl. 220.12 2600 Sq. Ft. X 3VA (total lighting VA of house) 120 volts X 15 amperes = 1800 VA (one circuit) 7800 VA (house) /1800 VA (one circuit) =4.3 = 5 circuits Copyright 2008 Ted "Smitty" Smith

78. 18. When calculating the total load on a dwelling unit, how many VA per square feet must be included for the general purpose receptacle outlets? a. none b. one c. two d. three Copyright 2008 Ted "Smitty" Smith

79. 18. a220.14(J)(1) Copyright 2008 Ted "Smitty" Smith

80. 19. When calculating the total load for a dwelling unit, what is the MINIMUM load, in VA, that must be added for the two required small appliance branch-circuits? a. 1200 VA b. 1500 VA c. 2400 VA d. 3000 VA Copyright 2008 Ted "Smitty" Smith

81. 19. d220.52(A) 1500 VA X 2 circuits required = 3000 VA Copyright 2008 Ted "Smitty" Smith

82. 20. It shall be permissible to apply a demand factor of _____ percent to the nameplate-rating load of four or more fastened in place electric water heaters in a multi-family dwelling unit. a. 50 b. 75 c. 80 d. 90 Copyright 2008 Ted "Smitty" Smith

83. 20. b220.53 Copyright 2008 Ted "Smitty" Smith