1) Circuit breakers used as switches in high-intensity discharge lighting circuits shall be listed and shall be marked as? (240.83(D))
2) For overcurrent protection greater than 1,000 V, the rating of Overcurrent Protection devices for a continuous Amp rating of a fuse shall not exceed? (240.101(A))
3) When installed at services, Type 1 Surge Protective Device (SPD)s shall be connected to? (242.12(B)(1))
4) Type 4 SPD shall only be installed by? (242.18)
5) What type of SPD is required to be installed by manufacturer? (242.18)
6) For connecting grounding and bonding equipment, what is not permitted? (250.8(A))
7) Alternating Current systems of under 50 V shall be grounded if supplied by transformers, if the transformer supply system exceeds? (250.20(A)(1))
8) The grounding electrode conductor for service supplied alternating current systems shall have a connection made at any accessible point from the? (250.24(A)(1))
9) A grounding conductor for a system grounding connection shall not be connected to? (250.24(A)(5))
10) For grounded alternating current premises wiring systems using a single-phase 3 wire configuration, which wire shall be specified as the grounded conductor? (250.26)
11) For buildings supplied by feeders, any installed grounded conductor shall not be connected to the equipment? (250.32 (B)(1))
12) Metal underground water pipe in direct contact with the earth for what distance is considered an electrode for grounding? (250.52(A)(1))
13) Concrete encased electrode shall consist of at least 20 feet of galvanized reinforcing bars of not less than 13 mm in diameter installed in length of what distance, or bare copper conductor not smaller than 4 AWG? (250.52 (A)(3), (2))
14) If multiple concrete-encased electrodes are present, it shall be permissible to bond only how many into the grounding electrode system? (250.52 (A)(3))
15) A metal rod not under 8 feet in length used as an electrode permitted for grounding shall not be smaller than 3/4 inch with an outer? (250.52 (A)(5)(a))
16) Grounding electrodes that are not under 8 feet and made of stainless or copper or zinc coated steel shall be at least? (250.52 (A)(5)(b))
17) Metal plates used as grounding electrodes shall expose not less than what area of surface to the soil? (250.52 (A)(7))
18) A grounding electrode electrode shall be supplemented by an additional electrode if a single rod has a resistance to earth of over what resistance? (250.53(2) Exception)
19) If rock is encountered while placing a grounding electrode that is required to be at least 8 feet in length, it can be placed at up to 45 degrees. If that is not possible, the electrode shall be permitted to be? (250.53 (A)(4))
20) Metal underground water pipe used as a grounding electrode system must be supplemented by? (250.53 (D)(1), (D)(2))
21) One or more grounding electrodes shall be permitted to be connected to the? (250.54)
22) Conductors and driven pipes, rods or plate electrodes used for grounding strike termination devices shall not be used in lieu of the? (250.60)
23) Aluminum or copper-clad aluminum conductors external to a building or equipment enclosures shall not be terminated within? (250.64(A)(3))
24) A 6 AWG or larger Copper or Aluminum grounding electrode conductor not exposed to physical damage shall be permitted to run along the surface of the building construction without? (250.64(B)(1))
25) Smallest permissible size of AC grounding electrode conductor is 8 AWG. Smallest aluminum grounding electrode conductor is 6 AWG. Larger than 3/0 ungrounded conductor requires a minimum of? (250.66, Table 250.66)
26) If the grounding electrical conductor does not extend to other types of electrodes that require a larger size conductor, the grounding electrode conductor shall not be required to be larger than? (250.66(A))
27) A phone system 25 feet from grounding rod requires what kind of grounding? (250.66(A))
28) All mechanical elements used to terminate a grounding electrode conductor to a grounding electrode shall be? (250.68(A))
29) Interior metal water piping that is electrically continuous with a metal underground water pipe electrode and is located not more than how far from the point of entrance to the building shall be permitted to extend the connection to an electrode? (250.68(C)(1))
30) An electrically isolated metal elbow with at least how deep of minimum cover to all parts of the metal components shall not be required to be connected to the grounded system conductor? (250.80 Exception)
31) What is required to be used around impaired connections such as eccentric knockouts? (250.92(B))
32) What can be used to bond impaired connections in box? (250.92(B)(4))
33) For systems over 250 V, two locknuts on Rigid Metal Conduit or Intermediate Metal Conduit, one inside and one outside of box, can perform bonding if? (250.97 Exception and (2))
34) For bonding in hazardous locations, the supply side bonding jumper shall not be smaller than specified in Table 250.102. If over 3/0, the required bonding wire is? (250.100(C)(1))
35) If the bonding jumper is installed outside a raceway, the length of the jumper shall not exceed? (250.100(E)(2))
36) For bonding of pipe systems, a grounded conductor of each separately derived system shall be bonded to the _______of the metal water piping system in the area served? (250.104(D)(1))
37) Equipment fastened in place that are likely to become energized shall be connected to an equipment grounding conductor where within how high vertically or 5 feet horizontally of ground or grounded metal objects and subject to contact by persons? (250.110(1))
38) Of the following types of equipment grounding conductors, which is not allowed? (250.118(7)(b))
39) Insulated Equipment grounding conductors may have a continuous outer finish that is? (250.119)
40) An insulated conductor 4 AWG and larger shall be permitted at time of installation to be permanently identified as an Equipment Grounding Conductor at each end and every point where conductor is? (250.119(A)(1))
41) Overcurrent device at 60 Amp requires Equipment Grounding Conductor (EGC) for grounding raceway at? (250.122(A), Table 250.122)
42) Single EGC size for multiple circuits in same raceway for 200 A is? (250.122(C), Table 250.122)
43) EGC can be run with power supply or a _______ that is properly terminated in grounding -type attachment plug? (250.138(A))
44) The smallest aluminum grounded conductor for the frame of an electric clothes dryer is? (250.140(2))
45) A(n) ________ shall be used to connect the grounding terminal of a grounding-type receptacle to a metal box that is connected to an EGC? (250.146)
46) The neutral conductor of all 3-wire DC systems supplying premises wiring shall be? (250.162(B))
47) DC systems to be grounded and supplied from oA-premises sources shall have the grounding connection made at? (250.164(A))
48) Where the DC system consists of a 3-wire balancer set with overcurrent protection, the grounding electrode conductor shall not be smaller than the neutral conductor and not smaller than? (250.166(A))
49) Where the DC system is not a 3-wire balancer set, the grounding electrode conductor shall not be smaller than the conductor supplied by the system and not smaller than? (250.166(B))
50) Secondary circuits of current and potential instrument transformers shall be grounded where the primary windings are connected to circuits of? (250.170)
51) The Equipment Grounding Conductor (EGC) for secondary circuits of instrument transformers and instrument cases shall not be smaller than? (250.178)
52) Where installed through bored holes in joists, holes shall be bored so that the edge of the hole is not less than how far from nearest edge of the wood member? (300.1(A)(1))
53) Cables parallel to framing members such as joists or studs shall be installed and supported so that the nearest outside surface of the cable is not less than how far from the nearest edge of the framing member? (300.1(D))
54) Where raceways contain 4 AWG or larger where these conductors enter a box, the conductors shall be protected by all the following except? (300.1 (G)(1), (2), (3))
55) Conduit bushings constructed wholly of insulating material shall not be used to secure a fitting or raceway. The insulating fitting or insulating material shall have a temperature rating not less than the? (300.1(G))
56) Direct buried conductor cables emerging from grade shall be protected by enclosures or raceways extending from the minimum cover distance below grade to a point at least 8 feet above finished grade. in no case shall the protection be required to exceed how far below finished grade? (300.5(D)(1))
57) Conductors entering building shall be protected to the point of? (300.5(D)(2))
58) Conductors not encased in concrete and buried greater than or equip to 18 inches below grade shall have a location warning ribbon placed at least how far above the underground installation? (300.5(D)(3))
59) How much ground cover is required for conductors that are less than or equal to 1,000 V that are encased in at least two inches of concrete? (Table 300.5)
60) How far does a conductor less than or equal to 120 V with GFCI protection with 20 Amps of overcurrent protection need to be under a driveway for a one family dwelling? (Table 300.5)
61) In portions of daily processing facilities in wet locations where walls are frequently washed, the entire wiring system including boxes shall be mounted so that there is at least a? (300.6(D))
62) What kind of raceways/boxes shall be permitted to be installed without the airspace on a concrete surface in wet locations that involved frequent washing, such as processing facility? (300.6(D) Exception)
63) Where passing from interior to the exterior of the building, the raceway shall be sealed to prevent circulation of warm air to? (300.7(A))
64) How much length of free conductor needs to emerge from raceway to be left at each outlet for connection? (300.14)
65) Each conductor shall be long enough to extend at least how far outside the box opening? (300.14)
66) A bushing shall be permitted in lieu of a box or terminal. The bushing shall be of the insulating type for other than? (300.16(B))
67) Supporting conductors in vertical raceways are required if conductors are 6 AWG through 1/0 AWG Cu and raceway is more than? (Table 300.19(A))
68) Wires are grouped together in parallel when installed in metal enclosures to avoid heating the surrounding ferrous metal by? (300.20(A))
69) Openings around electrical penetrations into or through fire resistant rated walls shall be? (300.21)
70) No wiring system of any type shall be installed in any duct used for ventilation of commercial type? (300.22(A))
71) What type of conductor used for moisture, heat- and oil-resistant thermoplastic? (Table 310.4(A))
72) Which of the following wire types can be used for wet locations? (Table 310.4(A))
73) What type of cable can be used for 90° C dry locations that has heat resistance? (Table 310.4(A), 410.68)
74) Ungrounded conductors shall be __________ from grounded conductors and equipment grounding conductors and such distinguishing markings shall not conflict in any manner with other surface marking requirements? (310.6(C))
75) What color is permissible for ungrounded conductor from the options below? (310.6(C))
76) Dry locations can use any types specified for other? (310.10(A))
77) Conductors installed in parallel shall have? (310.10(G)(4))
78) Single-phase dwelling services and feeders of 100 Amps requires conductor of? (310.12, Table 310.12)
79) Ampacity of each conductor shall be reduced where the number of current carrying conductors in a raceway exceeds? (310.15(C)(1))
80) For ambient temperature of 46-50° C with wire insulation having a rating of 75°C, the correction factor is? (Table 310.15(B)(1))
81) Overcurrent protection for 75° C 12 AWG THW shall be? (Table 310.16 and note *)
82) Seven conductors sized 6 AWG Copper and rated at 75° C with THW type insulation shall have what adjustment factor? (Table 310.15(C)(1), Table 310.16)
83) Type MV cable is allowed for up to? (311.2 Definition for medium voltage cable)
84) Nonmetallic closures in damp and wet locations shall be permitted to be installed with what airspace on concrete or similar surface? (312.2 Exception)
85) In noncombustible material, cabinets shall be installed so that the front edge of the cabinet is not set back from the finished surface by more than? (312.3)
86) Conductors at terminals or leaving boxes 4 AWG and larger shall be? (312.6(c))
87) There shall be an airspace of at least 0.5 inch between box walls and exposed current carrying parts where the voltage does not exceed? (312.11(A)(3))
88) Nonmetallic boxes shall be permitted with? (314.3)
89) What size electrical box is necessary for 13 size 12 AWG conductors? (314.16(B), (B)(2), Table 314.16(A)(B))
90) How much volume is required per 12 AWG conductor within a junction box? (Table 314.16(B))
91) Conductors entering through cable clamps into box must extend not less than? (314.17(B)(2))
92) Securing cable to box is not required if the cable is fastened within what distance of the junction of box? (314.17(B)(2) Exception)
93) Flush type cover or faceplate shall be made so the front edge of the box will not be set back more than what distance in gypsum or concrete? (314.20)
94) For installations within wood or other combustible surface materials, boxes shall extend to the? (314.20)
95) Nails and screws where used as a fastening means shall secure boxes or they shall pass through the interior within what distance of the back or ends of the enclosure? (314.23(B)(1))
96) Wood braces shall have a cross section of not less than what nominal size for installing enclosure box? (314.23(B)(2))
97) Each Raceway conduit shall be secured within what distance of the enclosure? (314.23(E))
98) Raceway supported luminaires are permitted if their weight does not exceed? (314.23(F)(5))
99) Boxes that enclose devices or utilization equipment that projects more than 1-7/8 inches rearward from the mounting plate of the box shall have a depth that is not less than the depth of the equipment plus? (314.24(B)(1))
100) Boxes enclosing devices supplied by 14 AWG or smaller shall have a depth not less than? (314.24(B)(5))