Smitty’s Two Minute Drill The BIG 5 Drill 1 A drill to focused on the categories of the test with the most questions. © Ted “Smitty” Smith 2016, 2017, 2018, 2019

Directions Left click on the presentation ICON located at the bottom of the slide directory to the left of the this slide or in the top menu under Slide Show if the presentation does not automatically start in Slide Show mode. 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. REMEMBER: To have the best effectiveness, put this presentation in slide show mode and use the timers. This will help you get to 2 minutes per question. Do no worry about the answers until you get through the timed section. Following the timed section, the slides are repeated without time so you can look them up.

Categories and Number of Questions Journeyman Wireman’s Exam Master’s License Exam General Electrical Knowledge 11 Services, Feeders, and Branch Circuits 9 Grounding and Bonding 14 Overcurrent Protection 6 Conductors and Cables 9 Raceways and Boxes 5 Special Occupancies 5 Special Equipment 5 Electrical Devices 5 Motors 6 Transformers 4 Photovoltaics 2 Electrical Calculations 9 General Electrical Knowledge 6 Services, Feeders, and Branch Circuits 11 Grounding and Bonding 14 Overcurrent Protection 5 Conductors and Cables 4 Raceways and Boxes 5 Special Occupancies 9 Special Equipment 9 Electrical Devices 4 Motors 8 Transformers 4 Photovoltaics 2 Electrical Calculations 9

THE KEY TO PASSING The five most important categories are Journeyman Masters The five most important categories are General Knowledge Services, Feeders, Branch Circuits Grounding and Bonding Conductors and Cables Calculations Those make up 52 questions. If you set a goal of getting 100% on those questions, you only need 18 more correct answers on the rest of the test to pass. The five most important categories are Services, Feeders, Branch Circuits Grounding and Bonding Special Occupancies Special Equipment Calculations Those make up 52 questions. If you set a goal of getting 100% on those questions, you only need 18 more correct answers on the rest of the test to pass.

SOME KEY POINTS Journeyman Master Be sure to sit down on three separate nights and read each of the following Articles. One on each night. 210, 215, 230 Then take one night and read Article 250 Be sure to write down the Article Names of each of the these chapters once per night. 2,3,4,5,6 One chapter a night, and just write the Article Name and Number and then throw it away. When you get done with chapter 6, start over the next night with Chapter 2. Practice Two Minute Drills and Practice Exams Be sure to sit down on three separate nights and read each of the following Articles. One on each night. 210, 215, 230, 501,502, 503 Be sure to write down the Article Names of each of the these chapters once per night. 2,3,4,5,6 One chapter a night, and just write the Article Name and Number and then throw it away. When you get done with chapter 6, start over the next night with Chapter 2. Practice Two Minute Drills and Practice Exams

FOCUS The BIG Five series of Two Minute Drills will focus on these categories so that you can work to improve your skills in these areas. We also have two minute drills and practice exams focusing on individual categories.

Copyright 2017 Ted "Smitty" Smith Question 1 What is the minimum required vertical clearance for overhead service conductors which will pass over a residential sidewalk if the voltage is 240 volts single phase? A. 10 feet B. 12 feet C. 15 feet D. 20 feet Copyright 2017 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 1 Answer B. 12 feet 230.24 (B)(2) Copyright 2005 Ted "Smitty" Smith

Copyright 2016 Ted "Smitty" Smith Question 2 What is the minimum clearance over a parking lot of an outside, overhead feeder which is rated 48,000 volts to ground? A. 18.5 feet B. 22 feet C. 19.5 Feet D. 15 feet Copyright 2016 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 2 Answer C. 19.5 Feet 225.60 (B) 48000- 22000=26000 26 x .4= 10.4 inches 12 inches x .4= 4.8 inches rounded to 5 We need to 10.5 inches to the value in Table 225.60 18.5 feet x 12= 222 inches + 10.5 inches- 232.5 inches/ 12= 19.375 feet 12 x .375= 4.5 inches rounded to 5 inches 19.5 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 3 What is the minimum bending radius for 1 ½” Flexible metal conduit? A. 3” B. 6” C. 10” D. 12” Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 3 answer C. 10” 348.24 Chapter 9, Table 2 “Other Bends” Copyright 2005 Ted "Smitty" Smith

Copyright 2017 Ted "Smitty" Smith Question 4 The 600 volt rated auxiliary equipment of electric discharge lamps mounted in permanently installed luminaires where the luminaires are mounted on poles for the illumination of highways shall have a minimum clearance of ______________ feet from the ground? A. 12’ B. 22’ C. 18’ D. 15’ Copyright 2017 Ted "Smitty" Smith

Copyright 2017 Ted "Smitty" Smith Question 4 Answer B. 22’ 210.6(D)(1)(a) Copyright 2017 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 5 What is the minimum vertical clearance of a 480 volt three phase service drop installed overhead above a commercial flat roof? The conductors shall travel six feet across the corner of the roof. 8 feet 10 feet 3 feet 12 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 5 A. 8 feet 230.24(A) Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 6 A 12/3 NM cable with a diameter of .345 inches is installed a dwelling unit. What is the maximum bending radius allowed for this cable? A. 3 inches B. 2.3 inches C. 1.725 inches D. 1 inch Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 6 answer C. 1.725 inches 334.24 5 x .345= 1.725 Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 7 What is the minimum clearance from a radio antenna required for a 480V, three phase, overhead, branch circuit conductor? A. 1 foot B. 3 feet C. 5 feet D. 8 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 7 answer B. 3 feet 225.19(B) Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 8 What is the minimum required vertical clearance over open land used for grazing cattle for an overhead feeder conductor operating at 500,000 volts to ground? A. 18.5 feet B. 24.35 feet C. 34.4 feet D. 50.8 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 8 answer C. 34.4 feet 225.60(B) 500-22=478 x.4= 191.2/12= 15.9 feet Table 225.60 = 18.5 + 15.9= 34.4 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 9 What is the voltage to ground for a 13,800 volt three phase wye system? A. 13,800 volts B. 7,967.67 volts C. 480 Volts D. 277 Volts Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 9 answer B. 7,967.67 volts 13/800/ 1.732= 7,967.67 Copyright 2005 Ted "Smitty" Smith

Copyright 2019 Ted "Smitty" Smith Question 10 10. A building or other structure that is served by a feeder on the load side of a service disconnecting means shall be supplied by only one feeder unless an additional feeder is installed to feed electric vehicle charging systems, listed, labeled and identified for more than a single branch circuit or feeder. A. True B. False Copyright 2019 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 10 Answer A. True 225.30(A)(7) Copyright 2005 Ted "Smitty" Smith

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

Copyright 2017 Ted "Smitty" Smith Question 1 What is the minimum required vertical clearance for overhead service conductors which will pass over a residential sidewalk if the voltage is 240 volts single phase? A. 10 feet B. 12 feet C. 15 feet D. 20 feet Copyright 2017 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 1 Answer B. 12 feet 230.24 (B)(2) Copyright 2005 Ted "Smitty" Smith

Copyright 2016 Ted "Smitty" Smith Question 2 What is the minimum clearance over a parking lot of an outside, overhead feeder which is rated 48,000 volts to ground? A. 18.5 feet B. 22 feet C. 19.5 Feet D. 15 feet Copyright 2016 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 2 Answer C. 19.5 Feet 225.60 (B) 48000- 22000=26000 26 x .4= 10.4 inches 12 inches x .4= 4.8 inches rounded to 5 We need to 10.5 inches to the value in Table 225.60 18.5 feet x 12= 222 inches + 10.5 inches- 232.5 inches/ 12= 19.375 feet 12 x .375= 4.5 inches rounded to 5 inches 19.5 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 3 What is the minimum bending radius for 1 ½” Flexible metal conduit? A. 3” B. 6” C. 10” D. 12” Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 3 answer C. 10” 348.24 Chapter 9, Table 2 “Other Bends” Copyright 2005 Ted "Smitty" Smith

Copyright 2017 Ted "Smitty" Smith Question 4 The 600 volt rated auxiliary equipment of electric discharge lamps mounted in permanently installed luminaires where the luminaires are mounted on poles for the illumination of highways shall have a minimum clearance of ______________ feet from the ground? A. 12’ B. 22’ C. 18’ D. 15’ Copyright 2017 Ted "Smitty" Smith

Copyright 2017 Ted "Smitty" Smith Question 4 Answer B. 22’ 210.6(D)(1)(a) Copyright 2017 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 5 What is the minimum vertical clearance of a 480 volt three phase service drop installed overhead above a commercial flat roof? The conductors shall travel six feet across the corner of the roof. 8 feet 10 feet 3 feet 12 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 5 A. 8 feet 230.24(A) Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 6 A 12/3 NM cable with a diameter of .345 inches is installed a dwelling unit. What is the maximum bending radius allowed for this cable? A. 3 inches B. 2.3 inches C. 1.725 inches D. 1 inch Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 6 answer C. 1.725 inches 334.24 5 x .345= 1.725 Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 7 What is the minimum clearance from a radio antenna required for a 480V, three phase, overhead, branch circuit conductor? A. 1 foot B. 3 feet C. 5 feet D. 8 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 7 answer B. 3 feet 225.19(B) Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 8 What is the minimum required vertical clearance over open land used for grazing cattle for an overhead feeder conductor operating at 500,000 volts to ground? A. 18.5 feet B. 24.35 feet C. 34.4 feet D. 50.8 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 8 answer C. 34.4 feet 225.60(B) 500-22=478 x.4= 191.2/12= 15.9 feet Table 225.60 = 18.5 + 15.9= 34.4 feet Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 9 What is the voltage to ground for a 13,800 volt three phase wye system? A. 13,800 volts B. 7,967.67 volts C. 480 Volts D. 277 Volts Copyright 2005 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 9 answer B. 7,967.67 volts 13/800/ 1.732= 7,967.67 Copyright 2005 Ted "Smitty" Smith

Copyright 2019 Ted "Smitty" Smith Question 10 10. A building or other structure that is served by a feeder on the load side of a service disconnecting means shall be supplied by only one feeder unless an additional feeder is installed to feed electric vehicle charging systems, listed, labeled and identified for more than a single branch circuit or feeder. A. True B. False Copyright 2019 Ted "Smitty" Smith

Copyright 2005 Ted "Smitty" Smith Question 10 Answer A. True 225.30(A)(7) Copyright 2005 Ted "Smitty" Smith

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