Smitty’s Two Minute Drill #9: Special Occupancies A drill to help you improve your code skills and your ability to find answers in the code book. © Ted “Smitty” Smith 2016, 2017

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 5 seconds. Do not worry about writing down the correct answer for now. You will have the opportunity to do that at the end of the two minute drill Good luck

Question 1 A pendant luminaire installed in a Class I, Division 1 area must be suspended by __________________________________. A. 3/8” aircraft cable B. any means approved in Chapter 3 of the NEC C. threaded rigid metal conduit stems D. electrical metallic tubing stems supported every 30 inches Copyright 2005 Ted "Smitty" Smith

Question 1 Answer 501.130(A)(3) C. threaded metal conduit stems Copyright 2005 Ted "Smitty" Smith

Question 2 The electrical receptacles supplied by life safety and critical branches at patient bed locations in a health care facility shall ____________________. A. be marked distinctively to readily identifiable B. be of a distinctive color so as to be readily identifiable C. Either A or B D. Both A and B Copyright 2016 Ted "Smitty" Smith

Question 2 Answer 517.19(A) C. Either A or B Copyright 2005 Ted "Smitty" Smith

Question 3 A mobile home that is factory equipped with gas central heating and cooking appliances shall be allowed to be fed with a power supply cord rated at a minimum of __________ amperes. A. 30 A B. 40 A C. 50 A D. 100 A Copyright 2005 Ted "Smitty" Smith

Question 3 answer B. 40 A 550.10 (A) Exception 1 Copyright 2005 Ted "Smitty" Smith

Question 4 All cables installed in an agricultural building shall be secured within _________ inches of each cabinet, box or fitting. Non-metallic boxes and metal raceways must be mounted on buildings so as to maintain a minimum of ________ inches airspace between the box or raceway and the building. A. 6” and ¼” B. 8” and ¼” C. 8” and 0” D. 12” and ¼” Copyright 2005 Ted "Smitty" Smith

Question 4 Answer 547.5(B) C. 8” and 0” Copyright 2005 Ted "Smitty" Smith

Question 5 A new recreational vehicle park is being built. The park will have a total of 100 spaces for recreational vehicles and an additional 10 spaces for tents. Which if the following receptacle configurations for the site will meet the minimum requirements of the National Electric Code? A. 40 sites with 50A, 30A and 20A receptacles, 30 sites with 30A and 20A receptacles and 20 sites with 20A receptacles, 10 tent sites with 15A receptacles B. 20 sites with 50A, 30A, and 20A receptacles, 70 sites with 30A and 20A receptacles, 10 sites with 20A receptacles, 10 tent sites with 15A receptacles C. 30 sites with 50A receptacles, 70 sites with 30A receptacles and 10 tent sites with 20A receptacles D. None of the configurations above will meet the minimum requirements of the NEC Copyright 2005 Ted "Smitty" Smith

Question 5 A. 40 sites with 50A, 30A and 20A receptacles, 30 sites with 30A and 20A receptacles and 20 sites with 20A receptacles, 10 tent sites with 15A receptacles 551.71 Copyright 2005 Ted "Smitty" Smith

Question 6 The critical branch and life safety branch of the essential electrical system of a health care facility may be housed in the same raceways and enclosures; however, they shall be kept independent of all other wiring and may not be in the same raceways as other system wiring. A. True B. False Copyright 2005 Ted "Smitty" Smith

Question 6 answer False 517.31(C) Copyright 2005 Ted "Smitty" Smith

Question 7 The space at the fuel dispensing pump of a self service gas station island extending 10 feet horizontally in all directions from the pump and from grade up to _________ inches is considered a Class I, Division 2 area. A. 6’7” B. 12” C. 5’ D. 18” Copyright 2005 Ted "Smitty" Smith

Question 7 answer D. 18” Table 514.3(B)(1) Copyright 2005 Ted "Smitty" Smith

Question 8 All equipment grounding conductors installed underground within a barn on a commercial farm shall be _________________. A. bare or have green colored insulation B. Listed for agricultural use C. insulated D. isolated Copyright 2005 Ted "Smitty" Smith

Question 8 answer C. insulated 547.5(F) Copyright 2005 Ted "Smitty" Smith

Question 9 A hazardous location in which ignitable concentrations of flammable gases or vapors are present continuously or where ignitable concentrations of flammable gases or vapors are present for long periods is a ___________________ location. A. Class I, Zone 0 B. Class I, Zone 1 C. Zone 20 D. Class 1, Zone 2 Copyright 2005 Ted "Smitty" Smith

Question 9 answer A. Class I, Zone 0 505.5(B)(1) Copyright 2005 Ted "Smitty" Smith

Question 10 What is the minimum demand for a mobile home park which will house 30 mobile homes? The service demands for the mobile homes are unknown. The service will be 120/240V. A. 115,200 VA B. 560,000 VA C. 280,000 VA D. 694,400 VA Copyright 2005 Ted "Smitty" Smith

Question 10 Answer A. 115,200 VA 550.31 Copyright 2005 Ted "Smitty" Smith

End of Drill Click on this slide to continue to the repeat of the questions. The timer will not operate in this section. Click on each slide to advance. Review the questions and look up the answers. Copyright 2005 Ted "Smitty" Smith

Question 1 A pendant luminaire installed in a Class I, Division 1 area must be suspended by __________________________________. A. 3/8” aircraft cable B. any means approved in Chapter 3 of the NEC C. threaded rigid metal conduit stems D. electrical metallic tubing stems supported every 30 inches Copyright 2005 Ted "Smitty" Smith

Question 1 Answer 501.130(A)(3) C. threaded metal conduit stems Copyright 2005 Ted "Smitty" Smith

Question 2 The electrical receptacles supplied by life safety and critical branches at patient bed locations in a health care facility shall ____________________. A. be marked distinctively to readily identifiable B. be of a distinctive color so as to be readily identifiable C. Either A or B D. Both A and B Copyright 2016 Ted "Smitty" Smith

Question 2 Answer 517.19(A) C. Either A or B Copyright 2005 Ted "Smitty" Smith

Question 3 A mobile home that is factory equipped with gas central heating and cooking appliances shall be allowed to be fed with a power supply cord rated at a minimum of __________ amperes. A. 30 A B. 40 A C. 50 A D. 100 A Copyright 2005 Ted "Smitty" Smith

Question 3 answer B. 40 A 550.10 (A) Exception 1 Copyright 2005 Ted "Smitty" Smith

Question 4 All cables installed in an agricultural building shall be secured within _________ inches of each cabinet, box or fitting. Non-metallic boxes and metal raceways must be mounted on buildings so as to maintain a minimum of ________ inches airspace between the box or raceway and the building. A. 6” and ¼” B. 8” and ¼” C. 8” and 0” D. 12” and ¼” Copyright 2005 Ted "Smitty" Smith

Question 4 Answer 547.5(B) C. 8” and 0” Copyright 2005 Ted "Smitty" Smith

Question 5 A new recreational vehicle park is being built. The park will have a total of 100 spaces for recreational vehicles and an additional 10 spaces for tents. Which if the following receptacle configurations for the site will meet the minimum requirements of the National Electric Code? A. 40 sites with 50A, 30A and 20A receptacles, 30 sites with 30A and 20A receptacles and 20 sites with 20A receptacles, 10 tent sites with 15A receptacles B. 20 sites with 50A, 30A, and 20A receptacles, 70 sites with 30A and 20A receptacles, 10 sites with 20A receptacles, 10 tent sites with 15A receptacles C. 30 sites with 50A receptacles, 70 sites with 30A receptacles and 10 tent sites with 20A receptacles D. None of the configurations above will meet the minimum requirements of the NEC Copyright 2005 Ted "Smitty" Smith

Question 5 A. 40 sites with 50A, 30A and 20A receptacles, 30 sites with 30A and 20A receptacles and 20 sites with 20A receptacles, 10 tent sites with 15A receptacles 551.71 Copyright 2005 Ted "Smitty" Smith

Question 6 The critical branch and life safety branch of the essential electrical system of a health care facility may be housed in the same raceways and enclosures; however, they shall be kept independent of all other wiring and may not be in the same raceways as other system wiring. A. True B. False Copyright 2005 Ted "Smitty" Smith

Question 6 answer False 517.31(C) Copyright 2005 Ted "Smitty" Smith

Question 7 The space at the fuel dispensing pump of a self service gas station island extending 10 feet horizontally in all directions from the pump and from grade up to _________ inches is considered a Class I, Division 2 area. A. 6’7” B. 12” C. 5’ D. 18” Copyright 2005 Ted "Smitty" Smith

Question 7 answer D. 18” Table 514.3(B)(1) Copyright 2005 Ted "Smitty" Smith

Question 8 All equipment grounding conductors installed underground within a barn on a commercial farm shall be _________________. A. bare or have green colored insulation B. Listed for agricultural use C. insulated D. isolated Copyright 2005 Ted "Smitty" Smith

Question 8 answer C. insulated 547.5(F) Copyright 2005 Ted "Smitty" Smith

Question 9 A hazardous location in which ignitable concentrations of flammable gases or vapors are present continuously or where ignitable concentrations of flammable gases or vapors are present for long periods is a ___________________ location. A. Class I, Zone 0 B. Class I, Zone 1 C. Zone 20 D. Class 1, Zone 2 Copyright 2005 Ted "Smitty" Smith

Question 9 answer A. Class I, Zone 0 505.5(B)(1) Copyright 2005 Ted "Smitty" Smith

Question 10 What is the minimum demand for a mobile home park which will house 30 mobile homes? The service demands for the mobile homes are unknown. The service will be 120/240V. A. 115,200 VA B. 560,000 VA C. 280,000 VA D. 694,400 VA Copyright 2005 Ted "Smitty" Smith

Question 10 Answer A. 115,200 VA 550.31 Copyright 2005 Ted "Smitty" Smith