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3 P a g e 3 Table of Contents Crash Course Book Excerpt Note from the Author... 4 Journeyman and Master Final Exam Journeyman and Master Final Exam Mike Holt s Final Exams Understanding the 2014 National Electrical Code 17 PSI TDLR Electrician Candidate Information Bulletin.. 43

5 Journeyman and Master Final Exam 1 1. Where installing 20 ranges in a residential multiple occupancy setting, each rated at 12kw, calculate the total demand load on the 3 wire, 4wire system's service: A: 29,000 B: 43,500 C: 35,000 D: 240,000 P a g e 5 Ans: b; See Annex D5(a) example on page 768, and , FPN No.1: page 62. Take the number of the maximum # of ranges between any two phases and multiply by 2. (20 Ranges would be distributed by on the three phases, thus 7 is the max #). 7 X 2 = 14. Then select 14 ranges under Column "C" of page 63. This gives you a demand for those two phases of 29,000 Watts. The question asks for the total demand for all three phases, thus, 29,000/2 would equal 14,500 watts for each phase or times 3 = 43,500 watts. 2. A 200 kva transformer, 3ɵ rated over 1000V, with a secondary of 480Vand has a 2% impedance rating, where located in a supervised location shall have its short circuit protection, of a fuse type, set at: A: 600 A B: 700 A C: 800 A D: 900 A Ans: b;, 700 Amps, Table 450.3(A), page 336. PIE = 200,000/480*1.73 = Amps. Then table value for a fuse type is 250% of that value; 240 * 250% = 602 Amps. Note 1 of the table instructs you to select the next standard size circuit breaker or fuse which according to 240.6(A) is 700A. 3. What is the MAXIMUM bending radius for a shielded or lead-covered cable rated at over 600 amps? A: 5 times B: 8 times C: 10 times D: 12 times Ans: d; 12 times, , page 136, Conductor Bending Radius. The conductor shall not be bent to a radius less than 8 times the overall diameter for nonshielded conductors or 12 times the overall diameter for shielded or lead-covered conductors during or after installation. 4. An emergency separately derived system shall have all conductors switched, including the grounded (neutral) conductor by which of the following? A: single pole switch B: double pole switch C: knife switch D: transfer switch Ans: d; Transfer Switch. 5. Where a voltage drop results in a #2 AWG being increased to a 2/0 AWG and the grounding is #8 AWG, what size would the grounding conductor be increased to? A: 8 B: 6 C: 4 D: 3 Ans: d; #3AWG, (B), page 116

6 P a g e 6 6. Where 5 parallel runs of 2/0 that are connected to a 1000 Amp Over Current Protection Device, what size would the grounding conductor be? A: 2/0 AWG B: #4 AWG C: 1/0 AWG D: #3 AWG Ans: a; (F) page, Were manholes, tunnels, and vaults have communication openings into enclosed areas used by the public which of the following should be required: A: Lighting B: Ventilation C: Safety Barriers D: Covers Ans: b; , page An overhead service of 120/240 volts, servicing a residential property crosses over a driveway and shall be a minimum of feet from its lowest point to the ground. A: 10 ft B: 12 ft C: 15 ft D: 18 ft Ans: b; , page Conductors shall be considered to be located "outside a building" where they are: A: Installed under 1 1/2" of concrete B: Installed in Rigid 12" below the building C: Installed under 2" of concrete D: Installed under 1" of concrete in a RGC raceway Ans: c, 230.6, page Service conductors shall not be smaller than AWG, unless part of a multiconductor cabling system. A: #6 AWG B: #8 AWG C: #3 AWG D: #1 AWG Ans: a, (A), page Direct buried cables and conductors that emerge from grade shall be protected by at least feet above grade, and in no case shall be required to extend further than feet below grade: A: 10' and 2' B: 8' and 2' C: 10' and 18" D: 8' and 18" Ans:, d, 300.5(D)(1), page 128

7 P a g e A straight pull junction box for a system rated at 1,000V shall be based on not less than times the diameter of the shielded or lead-covered conductor entering the box: A: 8; Sum of all B: 48; Largest C: 8; Largest D: 6; Sum of all Ans: b, (A), page All cut ends of RMC shall be reamed and finished, using a standard cutting die with a taper: A: 1 in 10 B: 1 in 12 C: 2 in 15 D: 1 in 16 Ans: d, , page What is the minimum sized conductor for a Temporary Service overhead conductor? A. #8 AWG Cu B. #6 AWG Cu C. #4 AWG Al D. There is no minimum size requirement per the NEC, check local AHJ Ans: a; (B), page Where calculating the proper fill percentages for conduit/wire fill, at what fraction of your calculation would you consider as the next higher whole wire size (round up)? A. 0.4 B. 0.5 C. 0.8 D. 0.1 Ans: c, Chapter 9, note A feeder disconnecting means shall have a rating of not less than the load of the building. A: Demand B: Required circuits C: Calculated load to be supplied D: Individual branch circuits (c , page 71-72) 17. All conductors, located in a manhole, shall be which of the following: A. Grouped together B. Bundled into one group C. Marked as "DANGER - High Voltage" D. Cabled, racked up, or arranged in an approved manner (d "Bending Space for Conductors, page 42)

8 18. Show windows shall be calculated on the basis of which of the following? A. 200 watts per square foot of window glass B. 200 VA per linear foot of window C. 180 VA per intended (planned) receptacle installation D. 3 VA per square foot (b (G)(2), Show Windows, page 59) P a g e A plug based fuse of the Edison-base type shall be classified at a maximum voltage rating of which of the following? A. 120V and 20A B. 125V and 30A C. 240V and 40A D. 240V and 20A (b , "Edison-Base Fuses, Classification" page 90) 20. Circuit breakers shall have a minimum interrupting rating of what amperage? A. 15 A B. 5,000 A C. 10,000 A D. 20 A (b (C) Marking, Interrupting Rating, page 91) 21. The blue colored lead wire in a heating cable shall be considered at which of the following voltage classifications? A. 120V B. 208 V C. 240 V D. 277 V ans: b; , page Incandescent lamps for general use shall not be equipped with a medium base if rated over watts, or with a mogul base if rated over watts. A. 120W - 208W B. 300W - 1,500W C. 600W - 1,200W D. 300W - 1,200W ans: b; , page Threading for a rigid conduit shall be used with a die of 1 in 16 taper and no less than nor greater than inches per foot of threading. A. 1/2" B. 1" C. 3/4" D. 2" (c "Reaming and Threading, page 193)

9 P a g e Multispeed motors shall have which of the following be permitted for two or more windings of the motor, provided that the rating of the protective device does not exceed the applicable percentage for the nameplate rating of the smallest winding protected? A: Controllers B: A Single Ground Fault Protective Device C: In-Line Fuses D: None of the above (b (C)(4), page 311) 25. What is the specific UL listing that gives information on AFCI devices? A: UL B: UL C: UL D: (5) (a., (B) FPN, #1, page 49)

10 P a g e 10 Journeyman and Master Final Exam 2 1. A disconnect installed in an Information Technology equipment room shall be located and be readily accessible near which of the following? a: Near the Service Panel b: Near the Principle Exit Doors c: Not above 48" in Height d: Near the Computer IT Equipment Rack ans: b, , page Where an internal combustion engine is the prime mover for a Generator Set in use as an emergency system, the fuel supply capable of supplying the full demand of the unit, shall be located outside and be able to provide a fuel supply that is sufficient for a minimum of what period of time? a: 1 Hour b: 1 1/2 Hours c: 2 Hours d: 2 1/2 Hours ans: c, (B)(2), page 599. (you will also find a similar notation in (B)(2), page 603.) 3. A time delay feature shall be provided for emergency back up generators that avoids retransfer in case of a shorttime reestablishment of the normal source for a minimum of: a: 5 Minutes b: 10 Minutes c: 12 Minutes d: 15 Minutes ans: d, (B), page A UPS battery backup, shall have a minimum rating and capacity where used in an emergency system and shall be able to maintain a minimum of which of the following: a: 87 1/2% of the System Voltage Rating for at least 1 1/2 hours b: 90 % of the System Voltage Rating for at least 1 hour c: 80 % of the System Voltage Rating for at least 1 hour d: 87 1/2% of the System Amperage Rating for at least 1 1/2 hours 5. Conductors in parallel shall have all of the following characteristics that should be equal: Length, Material, Voltage, and : a. Frequency, b. Harmonics c. Load Limits d. Color

11 P a g e Given the following motors all installed on the same circuit feeder, calculate the correct sized inverse time circuit breaker for this group: (1) 50 HP 3 _ 240V, (1) 20 HP 3 _ 240V, (2) 10 HP 3 _ 240V a: 500A b: 900A c: 1100A d: 1200A ans: a., Articles (C)(4), page 312, T430.52, page 310, and T , page 325. First find all FLC values for the group from T HP = 130A, 20 HP = 54A, and the two 10 HP's together are 56A (28A each). Next take the largest motor's FLC (130A) from T and multiply it times the 250% value found in T for an Inverse Time Circuit Breaker (Maximum Rating of Overcurrent Protection -Ground Fault or Short Circuit). Then add in the sums of all other motors. Finally, according to 240.4(B) we will round UP to the next standard size circuit breaker shown on page 85, under 240.6(A). Thus: 130A X 2.50 = 325A + 54A + 56A = 435A, rounded up to a 500A OCPD. 7. Given a 3_, 20kva transformer with a primary voltage of 480 at 2% impedance what would be the maximum size breaker or fuse for protection on the secondary side? A. 200 amps B. 125 amps C. 150 amps D. 140 amps ans: b., T450.3(B), Note 3, page 337. Find amperage on primary first: 20,000VA / 480 * 1.73 = A. Then Note 3 allows for 6 times this value, * 6 = Amps. This is a maximum not to exceed value, thus you would round down to the next standard size (according to 240.6(A), page 85) would be a 125A OCPD. 8. When installing 6 dryers, each with a name plate rating of 4500W, in a residential application, using the minimum sized requirements from the NEC, what would be the amperage value used for the sizing on the grounded conductor (neutral), using any allowable reduction? A A B A C A D A ans: c., Art requires a minimum of 5kW per household dryer, and T allows for a 75% derating. Thus: 6 X 5,000W = 30,000W X 75% = 22,500W / 240V = Amps. Multiply that value times 70% (permitted reduction from (B)(1) = Amps. 9. What would the smallest allowable service conductor rated for a voltage under 600V and the smallest size allowable for rated above 600V??? A. #8/#8 AWG Cu B. #8/#6 AWG Cu C. #6/#4 AWG Cu D. #12/#10 AWG Cu ans: a., (B), page 74, and (B), page 75.

12 10. What is the maximum of length of cord that would be allowed to be used for a disconnecting means for an appliance? A. 6 ft. B. 12 ft. C. 8 ft D. 18" ans: D What is the minimum sized allowed per the NEC for a SJO type extension cord conductor? A. 18 AWG B. 14 AWG C. 16 AWG D. 12 AWG ans: a., T400.4, page 243. See Sizes under "AWG or kcmil" heading of this table for "Junior Hard Service Cord." P a g e According to the NEC, what is the maximum sized over protection device, circuit breaker allowed for a range or oven in a dwelling? A. 60 amps B. 75 amps C. 50 amps D. 100 amps ans: c., Art (C) and (D), page Given the following ranges installed in a residential occupancy size the demand load on the service for these appliances. (2) 10KW (3) 12 KW (3) 14KW (1) 10 KW? A. 51kw B. 35kw C. 24kw D. 108 kw ans: c., T220.55, Note #2: Average all values first, then use correct column to rate demand load. Thus 2 X 10KW = 20KW, + 3 X 12KW = 36KW, + 3 X 14KW = 42KW, + 10KW = 108,000 Watts. 108KW / 9 (total number of ranges) averages the value to 12KW for each range. Then under Column "C" the demand load for 9 ranges of a 12KW type would be 24KW. 15. Given the following motor what size inverse timed circuit breaker would be required to protect a 30 hp 480V motor at a service factor at 1.15? A. 220A B. 250A C. 90A D. 110A ans: b., Table give us a FLC value of 88 Amps for this motor. Then T shows an inverse time CB rating of 250% would be used to multiply this value out. Thus 88 X 2.50 = 220A which Exception #1 would allow for the upsizing to a 250A ITCB. Note that the Service Factor of 1.15 would only apply to OVERLOAD (heater) protection under (A)(1) and would have no bearing on this answer.

13 16. In installing a 75KVA transformer rated at 480V at the primary and 208V on the secondary what would be the minimum wire rating for the secondary side in amperage at a wire temperature at 75 degrees Celsius? A. 4/0 AWG B. 500 KCMIL C. 2/0 AWG D. 250 KCMIL ans: a., Take the PIE chart, 75,000 VA / 208V * 1.73 = 209 Amps. T shows a 4/0 is good for 230 Amps under the 75º column. P a g e When installing a pool in a residential setting what is the minimum distance in ft that a receptacle provided? A. 6ft B. 5 ft C. 10 ft D. No receptacle required given these circumstances. ans: a., (A)(3), page What is the minimum height a ceiling suspended paddle fan may be installed above a pool? A. 10 ft B. 6 ft. C. 8 ft. D. 7' 6" ans: d., (C)(2), page What is the resistance of 4/0 copper conductors (uncoated) in ohms per 1000ft? A _ B _ C _ D _ 20. What is the minimum number of accessible general purpose receptacle outlets required in a hotel and guest room suite? A. 0 B. 2 C. 1 D. 1 per occupied room ans: b., (B), page Given a 3,500W countertop range, a 4,500W wall mounted oven, and a dryer; calculate the demand load on the service. A. 13,000 Watts B. 9,100 Watts C. 11,400 Watts D. 11,425 Watts ans: c., Use Note 4 from Table to consolidate the two ranges and treat as one single appliance. Also remember that a dryer must be rated at a minimum of 5,000 watts (per ) and 1-4 dryers per T are calculated at 100% of the nameplate rating. Take the two ranges and combine them, for a total of 8,000 watts. One range at 8KW is 80% from column "B" which equates to 6,400, then add 5,000 watts for the dryer load. You would then have a total of 11,400 watts.

14 P a g e Given a 5 minute short time rated 30 hp 3 phase motor, a 10 hp 3 phase motor, a 25 hp 3 phase motor, calculate the demand load on the feeder. 23. Where a generator with a completely enclosed transfer switch is installed on a pad over 50 ft away from a building, what is required at the building? A. Disconnecting means B. A placard directory C. Nothing required D. Grounding 24. What is the minimum permitted size for a flexible cord where intended for use with a heater? A: #12 AWG B: #18 AWG C: #14 AWG D: #16 AWG (b , page 241) 25. What is the minimum/maximum length of cord for use with a specific appliance such as a waste disposal or range hoods? A: 24" - 36" B: 18" - 48" C: 18" - 36" D: 24" - 60" (c., (B)(1)(2)) 26. What is the minimum sized conductor for a Temporary Service overhead conductor? A. #4 AWG Cu B. #6 AWG Cu C. 1/0 AWG Al D. There is no minimum size requirement per the NEC, check local AHJ 27. Where calculating the proper fill percentages for conduit/wire fill, at what fraction of your calculation would you consider as the next higher whole wire size (round up)? A. 0.4 B. 0.5 C. 0.8 D. 0.1

15 P a g e Calculate the minimum demand load for 20 single dwellings with 10 ranges(ovens) placed on the feeders of the service by the ranges where each range is individually rated at 12 KW, and such service is a 4 wire, 3 phase system. A. 17 KW B. 23 KW C. 34,500 W D. 25 KW 29. All conductors, located in a manhole, shall be which of the following: A. Grouped together B. Bundled into one group C. Marked as "DANGER - High Voltage" D. Cabled, racked up, or arranged in an approved manner (d "Bending Space for Conductors, page 42) 30. Show windows shall be calculated on the basis of which of the following? A. 200 watts per square foot of window glass B. 200 VA per linear foot of window C. 180 VA per intended (planned) receptacle installation D. 3 VA per square foot (b (G)(2), Show Windows, page 59) 31. A plug based fuse of the Edison-base type shall be classified at a maximum voltage rating of which of the following? A. 120V and 20A B. 125V and 30A C. 240V and 40A D. 240V and 20A (b , "Edison-Base Fuses, Classification" page 90) 32. Circuit breakers shall have a minimum interrupting rating of what amperage? A. 15 A B. 5,000 A C. 10,000 A D. 20 A (b (C) Marking, Interrupting Rating, page 91) 33. The blue colored lead wire in a heating cable shall be considered at which of the following voltage classifications? A. 120V B. 208 V C. 240 V D. 277 V

16 P a g e Incandescent lamps for general use shall not be equipped with a medium base if rated over watts, or with a mogul base if rated over watts. A. 120W - 208W B. 300W - 1,500W C. 600W - 1,200W D. 300W - 1,200W 35. Threading for a rigid conduit shall be used with a die of 1 in 16 taper and no less than nor greater than inches per foot of threading. A. 1/2" B. 1" C. 3/4" D. 2" (c "Reaming and Threading, page 193) 36. Multispeed motors shall have which of the following be permitted for two or more windings of the motor, provided that the rating of the protective device does not exceed the applicable percentage for the nameplate rating of the smallest winding protected? A: Controllers B: A Single Ground Fault Protective Device C: In-Line Fuses D: None of the above (b (C)(4), page 311) 37. What is the specific UL listing that gives information on AFCI devices? A: UL B: UL C: UL D: (5) (a., (B) FPN, #1, page 49) 38. A feeder disconnecting means shall have a rating of not less than the load of the building. A: Demand B: Required circuits C: Calculated load to be supplied D: Individual branch circuits (c , page 71-72)

17 Mike Holt s FINAL EXAMS Understanding the 2014 National Electrical Code Volume 1 Articles Based on the 2014 NEC Date: March 19, 2014

18 FINAL EXAM A FINAL EXAM A FOR UNDERSTANDING THE NEC CHAPTERS 1 4 Please use the 2014 Code book to answer the following questions. 1. The NEC is. (a) intended to be a design manual (b) meant to be used as an instruction guide for untrained persons (c) for the practical safeguarding of persons and property (d) published by the Bureau of Standards. 2. A is an area that includes a basin with a toilet, urinal, tub, shower, bidet, or similar plumbing fixtures. (a) bath area (b) bathroom (c) rest area (d) none of these 3. Connected to ground or to a conductive body that extends the ground connection is called. (a) equipment grounding (b) bonded (c) grounded (d) all of these 5. Many terminations and equipment are either marked with, or have that information included in the product s installation instructions. (a) an etching tool (b) a removable label (c) a tightening torque (d) the manufacturer s initials 6. The continuity of a grounded conductor shall not depend on a connection to a. (a) metallic enclosure (b) raceway (c) cable armor (d) all of these 7. An individual 20A branch circuit can supply a single dwelling unit bathroom for receptacle outlet(s) and other equipment within the same bathroom. 4. NFPA 70E Standard for Electrical Safety in the Workplace, provides information to help determine the electrical safety training requirements expected of a qualified person. Mike Holt Enterprises, Inc NEC.CODE ( ) 1

19 Final Exam A Final Exam for Understanding the NEC Chapters At least one 125V, 15A or 20A receptacle outlet shall be installed within 18 in. of the top of a show window for each linear ft, or major fraction thereof, of show-window area measured horizontally at its maximum width. (a) 10 (b) 12 (c) 18 (d) Overhead feeder conductors installed over roofs shall have a vertical clearance of above the roof surface, unless permitted by an exception. (a) 3 ft (b) 8 ft (c) 12 ft (d) 15 ft 10. Overhead service conductors shall have a horizontal clearance of not less than ft from a pool. (a) 8 (b) 10 (c) 12 (d) For installations consisting of not more than two 2-wire branch circuits, the service disconnecting means shall have a rating of not less than. (a) 15A (b) 20A (c) 25A (d) 30A 12. An 800A fuse rated at 1,000V on a 250V system. (a) shall not be used (b) shall be used (c) can be used (d) none of these 13. The grounding electrode conductor shall be connected to the grounded service conductor at the. (a) load end of the service drop (b) load end of the service lateral (c) service disconnecting means (d) any of these 14. A ground ring encircling the building or structure can be used as a grounding electrode when. (a) the ring is in direct contact with the earth (b) the ring consists of at least 20 ft of bare copper conductor (c) the bare copper conductor is not smaller than 2 AWG (d) all of these 15. The normally noncurrent-carrying metal parts of service equipment, such as, shall be bonded together. (a) service raceways or service cable armor (b) service equipment enclosures containing service conductors, including meter fittings, boxes, or the like, interposed in the service raceway or armor (c) service cable trays (d) all of these 16. Where used, the surge protective device shall be connected to the grounded conductor of the circuit. 17. The ampacities listed in do not take into consideration. (a) continuous loads (b) voltage drop (c) insulation (d) wet locations 18. Type AC cable installed through, or parallel to, framing members shall be protected against physical damage from penetration by screws or nails. 19. Bends in FMC shall be made so that the conduit is not damaged and the internal diameter of the conduit is. (a) larger than 3 8 in. (b) not effectively reduced (c) increased (d) larger than 1 in. 2 Final Exams Understanding the 2014 National Electrical Code, Volume 1

20 Final Exam for Understanding the NEC Chapters 1 4 Final Exam A 20. Cable trays shall be supported at intervals in accordance with the installation instructions. 21. A switchboard or panelboard containing a 4-wire, system where the midpoint of one phase winding is grounded, shall be legibly and permanently field-marked to caution that one phase has a higher voltage-to-ground. (a) wye-connected (b) delta-connected (c) solidly grounded (d) ungrounded 22. Individual circuits for nonmotor-operated appliances that are continuously loaded shall have the branch-circuit rating sized not less than percent of the appliance marked ampere rating, unless otherwise listed. (a) 80 (b) 100 (c) 125 (d) For transformers, other than Class 2 and Class 3, a means is required to disconnect all transformer ungrounded primary conductors. The disconnecting means must be located within sight of the transformer unless the disconnect. (a) location is field marked on the transformer (b) is lockable in accordance with (c) is nonfusible (d) a and b 24. This Code covers the installation of for public and private premises, including buildings, structures, mobile homes, recreational vehicles, and floating buildings. (a) optical fiber cables (b) electrical equipment (c) raceways (d) all of these 25. For a circuit to be considered a multiwire branch circuit, it shall have. (a) two or more ungrounded conductors with a voltage potential between them (b) a grounded conductor having equal voltage potential between it and each ungrounded conductor of the circuit (c) a grounded conductor connected to the neutral or grounded terminal of the system (d) all of these 26. A conductor used to connect the system grounded conductor or the equipment to a grounding electrode or to a point on the grounding electrode system is called the conductor. (a) main grounding (b) common main (c) equipment grounding (d) grounding electrode 27. When one electrical circuit controls another circuit through a relay, the first circuit is called a. (a) primary circuit (b) remote-control circuit (c) signal circuit (d) controller 28. Connection of conductors to terminal parts shall ensure a thoroughly good connection without damaging the conductors and shall be made by means of. (a) solder lugs (b) pressure connectors (c) splices to flexible leads (d) any of these 29. Receptacles shall have the terminal intended for connection to the grounded conductor identified by a metal or metal coating that is substantially in color. (a) green (b) white (c) gray (d) b or c Mike Holt Enterprises, Inc NEC.CODE ( ) 3

21 Final Exam A Final Exam for Understanding the NEC Chapters The total rating of utilization equipment fastened in place shall not exceed percent of the branch-circuit ampere rating where lighting units and cord-and-plug-connected utilization equipment are supplied. (a) 50 (b) 75 (c) 100 (d) In a dwelling unit, illumination for outdoor entrances that have grade-level access can be controlled by. (a) remote (b) central (c) automatic control (d) any of these 32. If a set of 120/240V overhead feeder conductors terminates at a through-the-roof raceway or approved support, with less than 6 ft of these conductors passing over the roof overhang, the minimum clearance above the roof for these conductors is. (a) 12 in. (b) 18 in. (c) 2 ft (d) 5 ft 33. Where communications cables and electric service drop conductors are supported by the same pole, communications cables must have a minimum separation of in. at any point in the span, including the point of attachment to the building. (a) 2 (b) 6 (c) 12 (d) The service conductors shall be connected to the service disconnecting means by or other approved means. (a) pressure connectors (b) clamps (c) solder (d) a or b 35. Cartridge fuses and fuse holders shall be classified according to their ranges. (a) voltage (b) amperage (c) a or b (d) a and b 36. Where the main bonding jumper is installed from the grounded conductor terminal bar to the equipment grounding terminal bar in service equipment, the conductor is permitted to be connected to the equipment grounding terminal bar. (a) grounding (b) grounded (c) grounding electrode (d) none of these 37. Grounding electrodes of the rod type less than in. in diameter shall be listed. (a) ½ in. (b) 5 8 in. (c) ¾ in. (d) none of these 38. Bonding jumpers for service raceways shall be used around impaired connections such as. (a) oversized concentric knockouts (b) oversized eccentric knockouts (c) reducing washers (d) any of these 39. Wiring methods installed behind panels that allow access shall be according to their applicable articles. (a) supported (b) painted (c) in a metal raceway (d) all of these 40. On a three-phase, 4-wire, wye circuit, where the major portion of the load consists of nonlinear loads, the neutral conductor shall be counted when applying (B)(3)(a) adjustment factors. 4 Final Exams Understanding the 2014 National Electrical Code, Volume 1

22 Final Exam for Understanding the NEC Chapters 1 4 Final Exam A 41. At Type AC cable terminations, a(n) shall be provided. (a) fitting (or box design) that protects the conductors from abrasion (b) insulating bushing between the conductors and the cable armor (c) a and b (d) none of these 42. When FMC is used where flexibility is necessary to minimize the transmission of vibration from equipment or to provide flexibility for equipment that requires movement after installation, shall be installed. (a) an equipment grounding conductor (b) an expansion fitting (c) flexible nonmetallic connectors (d) none of these 43. TPT and TST cords shall be permitted in lengths not exceeding ft when attached directly to a portable appliance rated 50W or less. (a) 8 (b) 10 (c) 15 (d) When separate equipment grounding conductors are provided in panelboards, a shall be secured inside the cabinet. (a) grounded conductor (b) terminal lug (c) terminal bar (d) none of these 45. Wall-mounted ovens and counter-mounted cooking units shall be permitted to be. (a) permanently connected (b) cord-and-plug-connected (c) a or b (d) none of these 46. A vented alkaline-type battery, as it relates to storage batteries, operating at not over 250V shall be installed with not more than cells in the series circuit of any one tray. (a) 10 (b) 12 (c) 18 (d) The NEC does not cover electrical installations in ships, watercraft, railway rolling stock, aircraft, or automotive vehicles. 48. The NEC defines a(n) as a structure that stands alone or that is cut off from adjoining structures by fire walls or fire barriers, with all openings therein protected by approved fire doors. (a) unit (b) apartment (c) building (d) utility 49. A is an accommodation that combines living, sleeping, sanitary, and storage facilities within a compartment. (a) guest room (b) guest suite (c) dwelling unit (d) single-family dwelling 50. Equipment enclosed in a case or cabinet with a means of sealing or locking so that live parts cannot be made accessible without opening the enclosure is said to be. (a) guarded (b) protected (c) sealable (d) lockable 51. Each disconnecting means shall be legibly marked to indicate its purpose unless located and arranged so. (a) that it can be locked out and tagged (b) it is not readily accessible (c) the purpose is evident (d) that it operates at less than 300 volts-to-ground Mike Holt Enterprises, Inc NEC.CODE ( ) 5

23 Final Exam A Final Exam for Understanding the NEC Chapters The screw shell of a luminaire or lampholder shall be connected to the. (a) grounded conductor (b) ungrounded conductor (c) equipment grounding conductor (d) forming shell terminal 53. in dwelling units shall supply only loads within that dwelling unit or loads associated only with that dwelling unit. (a) Service-entrance conductors (b) Ground-fault protection (c) Branch circuits (d) none of these 54. In a dwelling unit, at least one lighting outlet shall be located at the point of entry to the attic, underfloor space, utility room, or basement where these spaces are used for storage or contain equipment requiring servicing. (a) that is unswitched (b) containing a switch (c) controlled by a wall switch (d) b or c 55. A building or structure shall be supplied by a maximum of feeder(s) or branch circuit(s), unless specifically permitted otherwise. (a) one (b) two (c) three (d) four 56. The general requirement for each service drop, set of overhead service conductors, set of underground service conductors, or service lateral is that it shall supply set(s) of service-entrance conductors. (a) only one (b) only two (c) up to six (d) an unlimited number of 57. The next higher standard rating overcurrent device above the ampacity of the ungrounded conductors being protected shall be permitted to be used, provided the. (a) conductors are not part of a branch circuit supplying more than one receptacle for cord-and-plug-connected portable loads (b) ampacity of the conductors doesn t correspond with the standard ampere rating of a fuse or circuit breaker (c) next higher standard rating selected doesn t exceed 800A (d) all of these 58. Circuit breakers used to switch high-intensity discharge lighting circuits shall be listed and marked as. (a) SWD (b) HID (c) a or b (d) a and b 59. A grounding electrode conductor, sized in accordance with , shall be used to connect the equipment grounding conductors, the service-equipment enclosures, and, where the system is grounded, the grounded service conductor to the grounding electrode(s). 60. Where the supplemental electrode is a rod, that portion of the bonding jumper that is the sole connection to the supplemental grounding electrode shall not be required to be larger than AWG copper. (a) 8 (b) 6 (c) 4 (d) At existing buildings or structures, an intersystem bonding termination is not required if other acceptable means of bonding exits. An external accessible means for bonding communications systems together can be by the use of a(n). (a) nonflexible metallic raceway (b) exposed grounding electrode conductor (c) connection to a grounded raceway or equipment approved by the authority having jurisdiction (d) any of these 6 Final Exams Understanding the 2014 National Electrical Code, Volume 1

24 Final Exam for Understanding the NEC Chapters 1 4 Final Exam A 62. Rigid metal conduit that is directly buried outdoors shall have at least in. of cover. (a) 6 (b) 12 (c) 18 (d) Surface-type cabinets, cutout boxes, and meter socket enclosures in damp or wet locations shall be mounted so there is at least in. airspace between the enclosure and the wall or supporting surface. (a) 1 16 (b) ¼ (c) 1¼ (d) Type MC cable containing four or fewer conductors, sized no larger than 10 AWG, shall be secured within in. of every box, cabinet, fitting, or other cable termination. (a) 8 (b) 12 (c) 18 (d) connectors shall not be concealed when used in installations of LFMC. (a) Straight (b) Angle (c) Grounding-type (d) none of these 66. Flexible cords and cables shall be protected by where passing through holes in covers, outlet boxes, or similar enclosures. (a) bushings (b) fittings (c) a or b (d) none of these 67. No parts of cord-connected luminaires, chain-, cable-, or cord-suspended luminaires, lighting track, pendants, or paddle fans shall be located within a zone measured 3 ft horizontally and ft vertically from the top of the bathtub rim or shower stall threshold. (a) 4 (b) 6 (c) 8 (d) Cord-and-plug-connected vending machines manufactured or remanufactured on or after January 1, 2005 shall include a ground-fault circuit interrupter identified for portable use as an integral part of the attachment plug or in the power-supply cord within 12 in. of the attachment plug. Older vending machines not incorporating integral GFCI protection shall be. (a) remanufactured (b) disabled (c) connected to a GFCI-protected outlet (d) connected to an AFCI-protected circuit 69. Communications wiring such as telephone, antenna, and CATV wiring within a building shall not be required to comply with the installation requirements of Chapters 1 through 7, except where specifically referenced in Chapter A communications raceway is an enclosed channel of nonmetallic materials designed for holding communications wires and cables in applications. (a) plenum (b) riser (c) general-purpose (d) all of these 71. Within sight means visible and not more than ft distant from the equipment. (a) 10 (b) 20 (c) 25 (d) 50 Mike Holt Enterprises, Inc NEC.CODE ( ) 7

25 Final Exam A Final Exam for Understanding the NEC Chapters The overhead system service-entrance conductors are the service conductors between the terminals of and a point where they are joined by a tap or splice to the service drop or overhead service conductors. (a) service equipment (b) service point (c) grounding electrode (d) equipment grounding conductor 73. The NEC requires tested series-rated installations of circuit breakers or fuses to be legibly marked in the field to indicate the equipment has been applied with a series combination rating. 74. The ungrounded and grounded conductors of each shall be grouped by wire ties or similar means at the panelboard or other point of origination. (a) branch circuit (b) multiwire branch circuit (c) feeder circuit (d) service-entrance conductor 75. Receptacle outlets in or on floors shall not be counted as part of the required number of receptacle outlets for dwelling unit wall spaces, unless they are located within in. of the wall. (a) 6 (b) 12 (c) 18 (d) Ground-fault protection of equipment shall not be required at a feeder disconnect if ground-fault protection of equipment is provided on the side of the feeder and on the load side of any transformer supplying the feeder. (a) load (b) supply (c) service (d) none of these 77. The disconnecting means for a building supplied by a feeder shall be installed at a(n) location. (a) accessible (b) readily accessible (c) outdoor (d) indoor 78. A single-family dwelling unit and its accessory structure(s) shall be permitted to have one set of service conductors run to each structure from a single service drop, set of overhead service conductors, set of underground service conductors, or service lateral. 79. If the circuit s overcurrent device exceeds, the conductor ampacity must have a rating not less than the rating of the overcurrent device. (a) 800A (b) 1,000A (c) 1,200A (d) 2,000A 80. A circuit breaker with a voltage rating, such as 240V or 480V, can be used where the nominal voltage between any two conductors does not exceed the circuit breaker s voltage rating. (a) straight (b) slash (c) high (d) low 81. A main bonding jumper shall be a or similar suitable conductor. (a) wire (b) bus (c) screw (d) any of these 8 Final Exams Understanding the 2014 National Electrical Code, Volume 1

26 Final Exam for Understanding the NEC Chapters 1 4 Final Exam A 82. When a ground ring is used as a grounding electrode, it shall be buried at a depth below the earth s surface of not less than. (a) 18 in. (b) 24 in. (c) 30 in. (d) 8 ft 83. When bonding enclosures, metal raceways, frames, and fittings, any nonconductive paint, enamel, or similar coating shall be removed at. (a) contact surfaces (b) threads (c) contact points (d) all of these 84. Direct-buried service conductors that are not encased in concrete and that are buried 18 in. or more below grade shall have their location identified by a warning ribbon placed in the trench at least in. above the underground installation. (a) 6 (b) 10 (c) 12 (d) Enclosures for switches or overcurrent devices are allowed to have conductors feeding through where the wiring space at any cross section is not filled to more than percent of the cross-sectional area of the space. (a) 20 (b) 30 (c) 40 (d) Type NM cables shall not be used in one- and two-family dwellings exceeding three floors above grade. 87. PVC conduit shall not be used, unless specifically permitted. (a) in hazardous (classified) locations (b) for the support of luminaires or other equipment (c) where subject to physical damage unless identified for such use (d) all of these 88. Single-throw knife switches shall be installed so that gravity will tend to close the switch. 89. The NEC allows a lighting outlet on the wall in a clothes closet when it is at least 6 in. away from storage space. 90. Electric space-heating cables shall not extend beyond the room or area in which they. (a) provide heat (b) originate (c) terminate (d) are connected 91. Chapters 1 through 4 of the NEC apply. (a) generally to all electrical installations (b) only to special occupancies and conditions (c) only to special equipment and material (d) all of these 92. A separate portion of a raceway system that provides access through a removable cover(s) to the interior of the system, defines the term. (a) junction box (b) accessible raceway (c) conduit body (d) cutout box Mike Holt Enterprises, Inc NEC.CODE ( ) 9

27 Final Exam A Final Exam for Understanding the NEC Chapters The highest current at rated voltage that a device is identified to interrupt under standard test conditions is the. (a) interrupting rating (b) manufacturer s rating (c) interrupting capacity (d) withstand rating 94. The underground system service-entrance conductors are the service conductors between the terminals of and the point of connection to the service lateral or underground service conductors. (a) service equipment (b) service point (c) grounding electrode (d) equipment grounding conductor 95. Concrete, brick, or tile walls are considered, as applied to working space requirements. (a) inconsequential (b) in the way (c) grounded (d) none of these 96. Where more than one nominal voltage system supplies branch circuits in a building, each conductor of a branch circuit shall be identified by phase and system at all termination, connection, and splice points. (a) grounded (b) ungrounded (c) grounding (d) all of these 97. Receptacles installed for countertop surfaces as required by (c) shall not be used to meet the receptacle requirements for wall space as required by (A). 98. Where a premises wiring system contains feeders supplied from more than one nominal voltage system, each ungrounded conductor of a feeder shall be identified by phase or line and system by, or other approved means. (a) color coding (b) marking tape (c) tagging (d) any of these 99. A building disconnecting means that supplies only limited loads of a single branch circuit shall have a rating of not less than. (a) 15A (b) 20A (c) 25A (d) 30A 100. Service-entrance cables which are not installed underground, where subject to physical damage, shall be protected by. (a) rigid metal conduit (b) IMC (c) Schedule 80 PVC conduit (d) any of these 10 Final Exams Understanding the 2014 National Electrical Code, Volume 1

28 FINAL EXAM B FINAL EXAM B FOR UNDERSTANDING THE NEC CHAPTERS 1 4 Please use the 2014 Code book to answer the following questions. 1. Supplementary overcurrent devices used in luminaires or appliances are not required to be readily accessible. 2. For grounded systems, normally noncurrent-carrying conductive materials enclosing electrical conductors or equipment shall be connected to earth so as to limit the voltage-to-ground on these materials. 3. Where a supply-side bonding jumper of the wire type is run with the derived phase conductors from the source of a separately derived system to the first disconnecting means, it shall be sized in accordance with (C), based on. (a) the size of the primary conductors (b) the size of the secondary overcurrent protection (c) the size of the derived ungrounded conductors (d) one third the size of the primary grounded conductor 4. Grounding electrode conductors of the wire type shall be. (a) solid (b) stranded (c) insulated or bare (d) any of these 5. What is the minimum size copper equipment bonding jumper for a 40A rated circuit? (a) 14 AWG (b) 12 AWG (c) 10 AWG (d) 8 AWG 6. Cables or raceways installed using directional boring equipment shall be for this purpose. (a) marked (b) listed (c) labeled (d) approved 7. When counting the number of conductors in a box, a conductor running through the box with an unbroken loop or coil not less than twice the minimum length required for free conductors shall be counted as conductor(s). (a) one (b) two (c) three (d) four Mike Holt Enterprises, Inc NEC.CODE ( ) 11

29 Final Exam B Final Exam for Understanding the NEC Chapters Grommets or bushings for the protection of Type NM cable shall be for the purpose. (a) marked (b) approved (c) identified (d) listed 9. EMT, elbows, couplings, and fittings can be installed in concrete, in direct contact with the earth, or in areas subject to severe corrosive influences if. (a) protected by corrosion protection (b) approved as suitable for the condition (c) a and b (d) listed for wet locations 10. The metal mounting yoke of a replacement switch isn t required to be connected to an equipment grounding conductor if the wiring at the existing switch doesn t contain an equipment grounding conductor, and (a) the switch faceplate is nonmetallic with nonmetallic screws (b) the replacement switch is GFCI protected (c) a or b (d) the circuit is AFCI protected 11. Metal raceways shall be bonded to the metal pole with a(n). (a) grounding electrode (b) grounded conductor (c) equipment grounding conductor (d) any of these 12. Torque requirements for motor control circuit device terminals shall be a minimum of lb-in. (unless otherwise identified) for screw-type pressure terminals used for 14 AWG and smaller copper conductors. (a) 7 (b) 9 (c) 10 (d) In the NEC, the words indicate a mandatory requirement. (a) shall (b) shall not (c) shall be permitted (d) a or b 14. An enclosure or piece of equipment constructed so that dust will not enter the enclosure under specified test conditions is known as. (a) dusttight (b) dustproof (c) dust rated (d) all of these 15. Lighting track is a manufactured assembly designed to support and luminaires that are capable of being readily repositioned on the track. (a) connect (b) protect (c) energize (d) all of these 16. A structure is that which is built or constructed. 17. The required working space for access to live parts operating at 300 volts-to-ground, where there are exposed live parts on one side and grounded parts on the other side, is. (a) 3 ft (b) 3½ ft (c) 4 ft (d) 4½ ft 18. All 15A and 20A, 125V receptacles installed in crawl spaces at or below grade level of dwelling units shall have GFCI protection. 12 Final Exams Understanding the 2014 National Electrical Code, Volume 1

30 Final Exam for Understanding the NEC Chapters 1 4 Final Exam B 19. When breaks occur in dwelling unit kitchen countertop spaces for range tops, refrigerators or sinks, each countertop surface shall be considered a separate counter space for determining receptacle placement. 20. The 3 VA per-square-foot general lighting load for dwelling units includes general-use receptacles and lighting outlets. 21. For installations consisting of not more than two 2-wire branch circuits, the building disconnecting means shall have a rating of not less than. (a) 15A (b) 20A (c) 25A (d) 30A 22. Individual open conductors and cables, other than service-entrance cables, shall not be installed within ft of grade level or where exposed to physical damage. (a) 8 (b) 10 (c) 12 (d) Ground-fault protection of equipment shall be provided for solidly grounded wye electrical systems of more than 150 voltsto-ground, but not exceeding 1,000V phase-to-phase for each individual device used as a building or structure main disconnecting means rated or more, unless specifically exempted. (a) 1,000A (b) 1,500A (c) 2,000A (d) 2,500A 24. For grounded systems, normally noncurrent-carrying conductive materials enclosing electrical conductors or equipment, or forming part of such equipment, shall be connected together and to the to establish an effective ground-fault current path. (a) ground (b) earth (c) electrical supply source (d) none of these 25. The grounding electrode for a separately derived system shall be as near as practicable to, and preferably in the same area as, the grounding electrode conductor connection to the system. 26. Where used outside, aluminum or copper-clad aluminum grounding electrode conductors shall not be terminated within of the earth. (a) 6 in. (b) 12 in. (c) 15 in. (d) 18 in. 27. An equipment bonding jumper can be installed on the outside of a raceway, providing the length of the equipment bonding jumper is not more than and the equipment bonding jumper is routed with the raceway. (a) 12 in. (b) 24 in. (c) 36 in. (d) 72 in. 28. An exposed wiring system for indoor wet locations where walls are frequently washed shall be mounted so that there is at least a between the mounting surface and the electrical equipment. (a) ¼ in. airspace (b) separation by insulated bushings (c) separation by noncombustible tubing (d) none of these Mike Holt Enterprises, Inc NEC.CODE ( ) 13

31 Final Exam B Final Exam for Understanding the NEC Chapters Conduit bodies that are durably and legibly marked by the manufacturer with their volume can contain splices, taps, or devices 30. Type cable is an assembly primarily used for services. (a) NM (b) TC (c) SE (d) none of these 31. When a building is supplied with a fire sprinkler system, ENT can be installed above any suspended ceiling. 32. Snap switches rated or less directly connected to aluminum conductors shall be listed and marked CO/ALR. (a) 15A (b) 20A (c) 25A (d) 30A 33. Luminaires that require adjustment or aiming after installation can be cord-connected without an attachment plug, provided the exposed cord is of the hard-usage type and is not longer than that required for maximum adjustment. 34. The motor branch-circuit short-circuit and ground-fault protective device shall be capable of carrying the current of the motor. (a) varying (b) starting (c) running (d) continuous 35. When the Code uses, it means the identified actions are allowed but not required, and they may be options or alternative methods. (a) shall (b) shall not (c) shall be permitted (d) a or b 36. Continuous duty is defined as. (a) when the load is expected to continue for five hours or more (b) operation at a substantially constant load for an indefinitely long time (c) operation at loads and for intervals of time, both of which may be subject to wide variations (d) operation at which the load may be subject to maximum current for six hours or more 37. Equipment or materials included in a list published by a testing laboratory acceptable to the authority having jurisdiction is said to be. (a) book (b) digest (c) manifest (d) listed 38. A surge-protective device (SPD) intended for installation on the load side of the service disconnect overcurrent device, including SPDs located at the branch panel, is a SPD. (a) Type 1 (b) Type 2 (c) Type 3 (d) Type When normally enclosed live parts are exposed for inspection or servicing, the working space, if in a passageway or general open space, shall be suitably. (a) accessible (b) guarded (c) open (d) enclosed 14 Final Exams Understanding the 2014 National Electrical Code, Volume 1

32 Final Exam for Understanding the NEC Chapters 1 4 Final Exam B 40. All 15A and 20A, 125V receptacles installed in of dwelling units shall have GFCI protection. (a) unfinished attics (b) finished attics (c) unfinished basements and crawl spaces (d) finished basements 41. Kitchen and dining room countertop receptacle outlets in dwelling units shall be installed above the countertop surface, and not more than in. above the countertop. (a) 12 (b) 18 (c) 20 (d) Branch circuits that supply lighting units that have ballasts, autotransformers, or LED drivers shall have the calculated load based on of the units, not to the total wattage of the lamps. (a) 50 percent of the rating (b) 80 percent of the rating (c) the total ampere rating (d) 150 percent of the rating 43. Conductors are considered outside a building when they are installed. (a) Under not less than 2 in. of concrete beneath a building or structure (b) Within a building or structure in a raceway encased in not less than a 2 in. thickness of concrete or brick (c) Installed in a vault that meets the construction requirements of Article 450, Part III (d) all of these 44. Service-entrance and overhead service conductors shall be arranged so that will not enter the service raceway or equipment. (a) dust (b) vapor (c) water (d) none of these 45. Overcurrent devices shall be. (a) accessible (as applied to wiring methods) (b) accessible (as applied to equipment) (c) readily accessible (d) inaccessible to unauthorized personnel 46. Electrically conductive materials that are likely to in ungrounded systems shall be connected together and to the supply system grounded equipment in a manner that creates a low-impedance path for ground-fault current that is capable of carrying the maximum fault current likely to be imposed on it. (a) become energized (b) require service (c) be removed (d) be coated with paint or nonconductive materials 47. Tap connections to a common grounding electrode conductor for multiple separately derived systems may be made to a copper or aluminum busbar that is. (a) smaller than ¼ in. x 4 in. (b) not smaller than ¼ in. x 2 in. (c) not smaller than ½ in. x 2 in. (d) a and c 48. A grounding electrode conductor shall be permitted to be run to any convenient grounding electrode available in the grounding electrode system where the other electrode(s), if any, is connected by bonding jumpers in accordance with (C). 49. Lightning protection system ground terminals be bonded to the building or structure grounding electrode system. (a) shall (b) shall not (c) shall be permitted to (d) none of these 50. Electrical wiring within the cavity of a fire-rated floor-ceiling or roof-ceiling assembly shall not be supported by the ceiling assembly or ceiling support wires. Mike Holt Enterprises, Inc NEC.CODE ( ) 15

33 Final Exam B Final Exam for Understanding the NEC Chapters can be used to fasten boxes to a structural member using brackets on the outside of the enclosure. (a) Nails (b) Screws (c) Bolts (d) a and b 52. The ampacity of Type UF cable shall be that of conductors in accordance with (a) 60 C (b) 75 C (c) 90 C (d) 105 C 53. Bushings or adapters shall be provided at ENT terminations to protect the conductors from abrasion, unless the box, fitting, or enclosure design provides equivalent protection. 54. Where a grounding means exists in the receptacle enclosure a(n) -type receptacle shall be used. (a) isolated ground (b) grounding (c) GFCI (d) dedicated 55. Lampholders installed in damp locations shall be listed for use in locations. (a) damp (b) wet (c) dry (d) a or b 56. The motor controller shall have horsepower ratings at the application voltage not the horsepower rating of the motor. (a) lower than (b) higher than (c) equal to (d) none of these 57. Admitting close approach not guarded by locked doors, elevation, or other effective means, is referred to as. (a) accessible (as applied to equipment) (b) accessible (as applied to wiring methods) (c) accessible, readily (d) all of these 58. As used in the NEC, equipment includes. (a) fittings (b) appliances (c) machinery (d) all of these 59. Nonautomatic is defined as requiring to perform a function. (a) protection from damage (b) human intervention (c) mechanical linkage (d) all of these 60. A(n) enclosure is constructed or protected so that exposure to the weather will not interfere with successful operation. (a) weatherproof (b) weathertight (c) weather-resistant (d) all weather 61. For equipment rated 1,200A or more and over 6 ft wide that contains overcurrent devices, switching devices, or control devices, there shall be one entrance to and egress from the required working space not less than 24 in. wide and high at each end of the working space. (a) 5½ ft (b) 6 ft (c) 6½ ft (d) any of these 62. In other than dwelling locations, GFCI protection is required in. (a) indoor wet locations (b) locker rooms with associated showering facilities (c) garages, service bays, and similar areas other than vehicle exhibition halls and showrooms (d) all of these 16 Final Exams Understanding the 2014 National Electrical Code, Volume 1

34 Final Exam for Understanding the NEC Chapters 1 4 Final Exam B 63. At least one receptacle outlet not more than above a balcony, deck, or porch shall be installed at each balcony, deck, or porch that is attached to and accessible from a dwelling unit. (a) 3 ft (b) 6½ ft (c) 8 ft (d) 24 in. 64. The load for electric clothes dryers in a dwelling unit shall be watts or the nameplate rating, whichever is larger, per dryer. (a) 1,500 (b) 4,500 (c) 5,000 (d) 8, Service conductors installed in overhead masts on the outside surface of the building traveling through the eave, but not the wall, of that building are considered to be outside of the building. 66. On a three-phase, 4-wire, delta-connected service where the midpoint of one phase winding is grounded, the service conductor having the higher phase voltage-to-ground shall be durably and permanently marked by an outer finish that is in color, or by other effective means, at each termination or junction point. (a) orange (b) red (c) blue (d) any of these 67. Overcurrent devices shall be readily accessible and installed so the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than above the floor or working platform. (a) 2 ft (b) 4 ft 6 in. (c) 5 ft (d) 6 ft 7 in. 68. In ungrounded systems, electrical equipment, wiring, and other electrically conductive material likely to become energized shall be installed in a manner that creates a low-impedance circuit from any point on the wiring system to the electrical supply source to facilitate the operation of overcurrent devices should a(n) fault from a different phase occur on the wiring system. (a) isolated ground (b) second ground (c) arc (d) high impedance 69. In an area served by a separately derived system, the shall be connected to the grounded conductor of the separately derived system. (a) structural steel (b) metal piping (c) metal building skin (d) a and b 70. A service consisting of 12 AWG service-entrance conductors requires a grounding electrode conductor sized no less than. (a) 10 AWG (b) 8 AWG (c) 6 AWG (d) 4 AWG 71. Type MC cable provides an effective ground-fault current path and is recognized by the NEC as an equipment grounding conductor when. (a) it contains an insulated or uninsulated equipment grounding conductor in compliance with (1) (b) the combined metallic sheath and uninsulated equipment grounding/bonding conductor of interlocked metal tape type MC cable is listed and identified as an equipment grounding conductor (c) only when it is hospital grade Type MC cable (d) a or b Mike Holt Enterprises, Inc NEC.CODE ( ) 17

35 Final Exam B Final Exam for Understanding the NEC Chapters In multiwire branch circuits, the continuity of the conductor shall not be dependent upon the device connections. (a) ungrounded (b) grounded (c) grounding electrode (d) a and b 73. Boxes used at luminaire or lampholder outlets in a ceiling shall be designed so that a luminaire or lampholder can be attached and the boxes shall be required to support a luminaire weighing a minimum of lb. (a) 20 (b) 30 (c) 40 (d) Trade size 1 IMC shall be supported at intervals not exceeding ft. (a) 8 (b) 10 (c) 12 (d) The ampacity adjustment factors in (B)(3)(a) shall be applied to a metal wireway only where the number of current-carrying conductors in any cross section of the wireway exceeds. (a) 30 (b) 40 (c) 50 (d) Receptacles mounted to and supported by a cover shall be secured by more than one screw unless listed and identified for securing by a single screw. 77. The raceway or cable for tap conductors to recessed luminaires shall have a minimum length of in. (a) 6 (b) 12 (c) 18 (d) The disconnecting means for a motor controller shall be designed so that it cannot automatically. (a) open (b) close (c) restart (d) shut down 79. Capable of being removed or exposed without damaging the building structure or finish, or not permanently closed in by the structure or finish of the building is known as. (a) accessible (as applied to equipment) (b) accessible (as applied to wiring methods) (c) accessible, readily (d) all of these 80. Equipment enclosed in a case that is capable of withstanding an explosion of a specified gas or vapor that may occur within it, and of preventing the ignition of a specified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vapor within, and that operates at such an external temperature that a surrounding flammable atmosphere will not be ignited thereby defines the phrase. (a) overcurrent device (b) thermal apparatus (c) explosionproof equipment (d) bomb casing 81. A(n) is a point on the wiring system at which current is taken to supply utilization equipment. (a) box (b) receptacle (c) outlet (d) device 82. Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage sufficient for the current that is available at the line terminals of the equipment. 83. The dedicated space above a panelboard extends to a dropped or suspended ceiling, which is considered a structural ceiling. 18 Final Exams Understanding the 2014 National Electrical Code, Volume 1

36 Final Exam for Understanding the NEC Chapters 1 4 Final Exam B 84. All 15A and 20A, 125V receptacles installed within 6 ft of the outside edge of a sink in locations other than dwelling units must be. (a) AFCI protected (b) GFCI protected (c) tamperproof (d) a and b 85. A laundry receptacle outlet shall not be required in each dwelling unit of a multifamily building, if laundry facilities are provided on the premises for all building occupants. 86. Using the standard load calculation method, the feeder demand factor for five household clothes dryers is percent. (a) 50 (b) 70 (c) 85 (d) Service-drop conductors shall have. (a) sufficient ampacity to carry the load (b) adequate mechanical strength (c) a or b (d) a and b 88. There shall be no more than disconnects installed for each service or for each set of service-entrance conductors as permitted in and (a) two (b) four (c) six (d) eight 89. Plug fuses of the Edison-base type shall be used. (a) where overfusing is necessary (b) as a replacement in existing installations (c) as a replacement for Type S fuses (d) 50A and above 90. on equipment to be grounded shall be removed from contact surfaces to ensure good electrical continuity. (a) Paint (b) Lacquer (c) Enamel (d) any of these 91. High-impedance grounded neutral systems shall be permitted for three-phase ac systems of 480V to 1,000V where. (a) the conditions of maintenance ensure that only qualified persons service the installation (b) ground detectors are installed on the system (c) line-to-neutral loads are not served (d) all of these 92. Exothermic or irreversible compression connections, together with the mechanical means used to attach to fireproofed structural metal, shall not be required to be accessible. 93. Where conductors are run in parallel in multiple raceways or cables and include an EGC of the wire type, the equipment grounding conductor must be installed in parallel in each raceway or cable, sized in compliance with Raceways shall be between outlet, junction, or splicing points prior to the installation of conductors. (a) installed complete (b) tested for ground faults (c) a minimum of 80 percent complete (d) none of these 95. Power distribution blocks shall be permitted in pull and junction boxes over 100 cubic inches when they comply with the provisions of (E)(1) through (5). Mike Holt Enterprises, Inc NEC.CODE ( ) 19

37 Final Exam B Final Exam for Understanding the NEC Chapters Galvanized steel, stainless steel, and red brass RMC shall be permitted in or under cinder fill subject to permanent moisture, when protected on all sides by a layer of noncinder concrete not less than in. thick. (a) 2 (b) 4 (c) 6 (d) Surface metal raceways and associated fittings shall be supported. (a) in accordance with the manufacturer s installation instructions (b) at intervals appropriate for the building design (c) at intervals not exceeding 4 ft (d) at intervals not exceeding 8 ft 99. Lighting track fittings can be equipped with general-purpose receptacles Where the air conditioner disconnecting means is not within sight from the equipment, the disconnecting means must be. (a) guarded (b) exposed (c) lockable (d) elevated 98. Nonlocking 15A and 20A, 125V and 250V receptacles installed in damp locations shall be listed as. (a) raintight (b) watertight (c) weatherproof (d) weather resistant 20 Final Exams Understanding the 2014 National Electrical Code, Volume 1

38

40 Final Exams Answer Key Question # Answer NEC Section # Question # Answer NEC Section # Final Exam A 1. (c) 90.1(A) 2. (b) 100 Bathroom 3. (c) 100 Grounded 4. (a) 100 Note, Qualified Person 5. (c) Note 6. (d) 200.2(B) 7. (a) (C)(3) Ex 8. (b) (b) (A) 10. (b) (D), 680.8(A), and Table 680.8(A) 11. (d) (B) 12. (c) (d) (A)(1) 14. (d) (A)(4) 15. (d) (A)(1) and (2) 16. (b) (b) (A)(1) Note (a) (b) (a) (A) 21. (b) 408.3(F)(1) 22. (c) (A) 23. (d) (d) 90.2(A)(1) 25. (d) 100 Branch Circuit, Multiwire 26. (d) 100 Grounding Electrode Conductor 27. (b) 100 Remote-Control Circuit 28. (d) (A) 29. (b) (B)(1) 30. (a) (A)(2) 31. (d) (A)(2) Ex 32. (b) (A) Ex (c) (E) and (A)(4) 34. (d) (d) (c) (A)(4) 37. (b) (A)(5)(b) 38. (d) (B) 39. (a) 300.4(C) 40. (a) (B)(5)(c) 41. (c) (a) (a) 400.4, Table Note (c) (c) (B)(3) 46. (d) 480.7(B) 47. (a) 90.2(B)(1) 48. (c) 100 Building 49. (a) 100 Guest Room 50. (c) 100 Sealable Equipment 51. (c) (A) 52. (a) (C) 53. (c) (A) 54. (d) (A)(3) 55. (a) (a) (d) 240.4(B)(1), (2), and (3) 58. (b) (D) 59. (a) (D) 60. (b) (E) 61. (d) Ex 62. (a) 300.5(A) and Table Column (b) (b) (B) 65. (b) (c) (c) (D) 68. (c) (a) (d) 100 Communications Raceway 71. (d) 100 In Sight from (Within Sight) 72. (a) 100 Service-Entrance Conductors, Overhead System 73. (a) (C) 74. (b) 210.4(D) 75. (c) (A)(3) 76. (b) Ex (b) (a) Ex (a) 240.4(C) 80. (a) (d) (A) 82. (c) (F) 83. (d) (A) 84. (c) 300.5(D)(3) 85. (c) 312.8(1) 86. (b) (1) 87. (d) (A), (B), and (C) 88. (b) 404.6(A) Mike Holt Enterprises, Inc NEC.CODE ( ) 1

41 Answer Key Final Exams Question # Answer NEC Section # Question # Answer NEC Section # 89. (a) (C)(4) 90. (b) (A) 91. (a) (c) 100 Conduit Body 93. (a) 100 Interrupting Rating 94. (a) 100 Service-Entrance Conductors, Underground System 95. (c) (A)(1) and Table (A)(1), Condition (b) 210.5(C)(1) 97. (a) (A)(4) 98. (d) (C)(1)(a) 99. (a) (A) 100. (d) (B)(1)(1), (2), and (3) Final Exam B 1. (a) (a) 250.4(A)(2) 3. (c) (A)(2)(a) 4. (d) (c) (D) and Table (d) 300.5(K) 7. (b) (B)(1) 8. (d) (c) (B) 10. (c) 404.9(B) Ex 1 to (B) 11. (c) (B)(5) 12. (a) 430.9(C) 13. (d) 90.5(A) 14. (a) 100 Dusttight 15. (c) 100 Lighting Track (Track Lighting) 16. (a) 100 Structure 17. (b) (A)(1) and Table (A)(1), Condition (a) 210.8(A)(4) 19. (a) (C)(4) 20. (a) (J) 21. (d) (B) 22. (b) (B)(2) 23. (a) (c) 250.4(A)(3) 25. (a) (A)(4) 26. (d) (A) 27. (d) (E)(2) 28. (a) 300.6(D) 29. (a) (C)(2) 30. (c) Service-Entrance Cable 31. (a) (5) Ex 32. (b) (C) 33. (a) (B) 34. (b) (B) 35. (c) 90.5(B) 36. (b) 100 Duty, Continuous 37. (d) 100 Listed 38. (b) 100 Surge Protective Devices (SPDs) 39. (b) (B) 40. (c) 210.8(A)(4) and (5) 41. (c) (C)(5) 42. (c) (B) 43. (d) 230.6(1), (2), and (3) 44. (c) (G) 45. (c) (A) 46. (a) 250.4(B)(3) 47. (b) (A)(6)(c)(2) 48. (a) (F)(1) 49. (a) (a) (A)(1) 51. (d) (B)(1) 52. (a) (a) (b) 406.4(D)(1) 55. (d) (a) (A)(1) 57. (a) 100 Accessible (as applied to equipment) 58. (d) 100 Equipment 59. (b) 100 Nonautomatic 60. (a) 100 Weatherproof 61. (c) (C)(2) 62. (d) 210.8(B)(6), (7), and (8) 63. (b) (E)(3) 64. (c) (a) 230.6(5) 66. (a) (d) (A) 68. (b) 250.4(B)(4) 69. (d) (A)(8) 70. (b) and Table (d) (10) 72. (b) (B) 73. (d) (A)(2) 74. (b) (B)(1) 2 Final Exams Understanding the 2014 National Electrical Code, Volume 1

42 Final Exams Answer Key Question # Answer NEC Section # Question # Answer NEC Section # 75. (a) (B) 76. (a) 406.5(C) 77. (c) (C) 78. (b) (b) 100 Accessible (as applied to wiring methods) 80. (c) 100 Explosionproof Equipment 81. (c) 100 Outlet 82. (a) (b) (E)(1)(d) 84. (b) 210.8(B)(5) 85. (a) (F) Ex (c) and Table (d) (A) 88. (c) (A) 89. (b) (B) 90. (d) (d) (1), (2), and (3) 92. (a) (A) Ex (a) (F) 94. (a) (A) 95. (a) (E) 96. (a) (C) 97. (a) (d) 406.9(A) 99. (b) (A) 100. (c) Ex 1 Mike Holt Enterprises, Inc NEC.CODE ( ) 3

43 Voltage Drop 2012 Voltage Drop Single phase voltage drop; Vd = 2K x L x I / Cm Three phase voltage drop: Vd = 1.73K x Lxi / Cm Copper K = 12.9 Aluminum K = 21.2 The NEC allows a 5%-drop for feeders and a 3% drop for branch circuits. Electrician Testing

44 Voltage Drop 2012 FEEDER BRANCH CIRCUIT Service Sub Panel Load 3% 5% Power Loss= VD x I Voltage Drop... VD=2 x K x D x I (or) VD= I x R CM Wire Size... CM=2 x K x D x I VD per Distance... Load... D=CM x VD per 2 x K x D I= CM x VD per 2 x K x D The "2" in the formulas is for 1 For 3 change the "2" to 'k' is the resistance of a cm foot K=R x CM 1000' When using the formula to fine "WIRE SIZE" use the approximate of 12.9 for copper and 21.2 for alum. "D" is the distance ONE WAY is a circuit. "I" is the load in amperes. "CM" is the wire size in circular mils, found in Table 8. "VD per" is the percentage of the applied voltage. 3% VD per for a branch circuit and 5% total system. Example: A 120v branch circuit is permitted to drop 3% x 120v= 3.6 volts. A 240v branch circuit 3% x 240v= 7.2volts. A 208v branch circuit 3%x 208v= 6.24 VD permitted. Total System: 240v x 5%= 12volts permitted. K Electrician Testing

45 PSI Services LLC 3210 E Tropicana Las Vegas, NV TEXAS DEPARTMENT OF LICENSING AND REGULATION ELECTRICIAN CANDIDATE INFORMATION BULLETIN QUESTIONS ON THESE EXAMINATIONS ARE BASED ON THE 2014 NEC Examination Procedures... 1 Internet Scheduling... 1 Telephone Scheduling... 1 Canceling an Examination... 1 Missed Appointment or Late Cancellation... 1 Special Examination Arrangements... 1 Emergency Examination Site Closing... 1 Reporting to the Examination Site... 4 Required Identification... 4 Security Procedures... 4 Taking the Examination by Computer... 4 Examination Review... 5 Examination Site Location... 5 Score Reporting... 7 Examination Reference Materials... 7 Examination Content Outlines... 8 Examination Registration Form Special Arrangement Form... End of Bulletin Please refer to our website to check for the most updated information at Copyright 2014 by PSI Services LLC Revised 12/1/2014

47 Internet Registration: instructions for scheduling an examination online at 1. Go to and select Create an Account. If you have already registered and created an account, type in your address and password. 2. VERY IMPORTANT STEP. You must put in your address and the spelling of your name EXACTLY as it was submitted to TDLR. 3. Be sure to check the box Check here to attempt to locate existing records for you in the system and select Submit. 4. Select the organization, state, account, and classification (as seen below). Enter your TDLR ID # and select Submit. 5. The system will find your imported record. You are now ready to pay and schedule for the examination. Select Pay for a test. 2

48 6. Type in your credit card information and select Submit. 7. Enter your zip code or the city where you live and select Search. You will get a list of the testing sites closest to you. Select the desired Test center and select Continue. 8. You will now see the availability. Click on the date and time of your choice and select Schedule. 9. A confirmation will appear that you can print out, and you will receive an confirmation. 3

### CONTINUING EDUC ATION

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