NEC Prep Quiz 9 Straight Order [645.5-690.42]
1. Which of the following are permitted under raised floors of information technology equipment rooms for the support of information technology equipment
645.5(E)(2)(1), (2), and (3) All of the above: Supply cords of listed information technology equipment in accordance with 6455 B, interconnecting cables enclosed in a Raceway. Equipment grounding conductors.
2. General purpose type cl2, CM, or CMG cables are permitted within the raised floor area of an information technology equipment room if installed in accordance with 725 154 a
645.5(E)(2)(4) TRUE
3. Interconnecting cables under raised floors that support information technology equipment shall be listed type _____________cable having adequate fire resistant characteristics suitable for use under raised floor of an information technology equipment room
645.5(E)(2)(5) DP
4. In addition to optical fiber cables installed in accordance with 770. 113c, types of & R, o s c r, o s n, and ofc shall be permitted under raised floors of an information technology equipment room.
645.5(E)(3) TRUE
5. Power cables, communication cables, connecting cables, interconnecting cables, and Associated boxes, connectors, plugs, and receptacles that are listed as part of, or 4, information technology equipment shall not be required to be secured in place where installed _____________
645.5(F) under raised floors
11. Underground wiring for swimming pools, fountains, and similar installations shall be permitted where installed in _____________, suitable for the conditions subject to that location.
680.11 Any of these: rigid metal conduit or intermediate metal conduit, rigid polyvinyl chloride conduit or reinforced thermosetting resin conduit, type MC cable
12. Underground wiring shall not be permitted under a pool unless this wiring is necessary to supply pool equipment permitted by article 680, and the _____________cover deaths shall be as given in table 300.5.
680.11 minimum
14. Adequate ventilation of indoor spaces such as _____________rooms is addressed by ANSI/ asp - 11, standard for water quality in public pools and spas, and can reduce the likelihood of the accumulation of corrosive Vapors on electrical pool equipment.
680.12 Note equipment and storage
13. Electric swimming pool equipment shall not be installed in pits that do not have drainage that prevents water accumulation during normal operation and Equipment shall be suitable for the environment in accordance with 300.6.
680.12 TRUE
15. Areas where pool sanitation chemicals are stored, as well as areas with circulation pumps, automatic chlorinators, filters, open areas under decks adjacent to or abutting the pool structure, and similar locations shall be considered to be a _____________ environment.
680.14(A) corrosive
17. _____________ conduit shall be considered to be resistant to the corrosive environment specified in 680.14a.
680.14(B) All of these: rigid metal conduit and intermediate metal, rigid polyvinyl chloride, reinforced thermosetting resin
16. Wiring methods in the area described in 681 for a shall be _____________ for use in such areas.
680.14(B) listed and identified
6. An electrically an electrically powered lift that provides accessibility to and from a pool or spa for people with disabilities is known as an "electrically powered _____________ lift"
680.2 Electrically Powered Pool Lift pool
7. Storable swimming, waiting, immersion pools; or storable/ portable spas and hot tubs are swimming, waiting, or immersion pools that are intended to be stored when not in use, Constructed on or above the ground and are capable of holding water to a maximum depth of _____________inches, or a pool, spa, or hot tub constructed on or above the ground, with non-metallic, polymeric walls or inflatable fabric walls regardless of dimension.
680.2 Storable Swimming, Wading, or Immersion Pools; or Storable/Portable Spas and Hot Tubs 42
18. Branch circuit and stalls and corrosive environments for pool Associated Motors shall be installed and wiring methods including _____________ conduit when installed in a corrosive environment. Any wiring method employed she'll include an insulated copper equipment grounding conductor size in accordance with table 250. 122, but not smaller than 12 AWG.
680.21(A)(1) PVC or rigid metal
19. Grounding - type GFCI protected receptacles that provide Power for water siphon pump motors related to the circulation and sanitation system of a pool shall be located not less than _____________ feet from the inside walls of the pool
680.22(A)(2) 6
20. Listed low-voltage gas-fired luminaires, decorative fireplaces, fire pits, and similar equipment using low-voltage ignitors that do not require grounding, and are supplied by listed transformers or power supplies that comply with 680.23(A)(2) with outputs that do not exceed the low-voltage contact limit shall be permitted to be located less than ______ ft from the inside walls of the pool.
680.22(B)(7) 5
23. Metallic gas piping used to supply low-voltage gas-fired luminaires, decorative fireplaces, fire pits, and similar equipment shall be _____ in accordance with the requirements in 250.104(B) and 680.26(B)(7)
680.22(B)(7) PVC or rigid metal
21. Metallic low-voltage gas-fired luminaires, decorative fireplaces, fire pits, and similar equipment shall be bonded in accordance with the requirements in 680.26(B).
680.22(B)(7) TRUE
22. Transformers or power supplies supplying low-voltage gas-fired luminaires, decorative fireplaces, fire pits, and similar equipment shall be _____ in accordance with the requirements in 680.24.
680.22(B)(7) installed
24. A pool transformer used for the supply of underwater luminaires, together with the transformer enclosure, shall be listed, labeled, and identified for swimming pool and spa use and _______ between the primary and secondary windings.
680.23(A)(2) be of the isolated-winding type with an ungrounded secondary and a grounded metal barrier, incorporate an approved system of double insulation
25. For permanently installed pools, a GFCI shall be installed in the branch circuit supplying luminaires operating at more than the low-voltage _____.
680.23(A)(3) contact limit
28. Where connecting to transformers or power supplies for pool lights in accordance with 680.23(F)(1), liquid tight flexible metal conduit shall be permitted but the length shall not exceed _____ ft for any one length or exceed _____ ft in total length used.
680.23(F)(1) Ex 6, 10
26. Where branch-circuit wiring on the supply side of enclosures and junction boxes connected to conduits run to underwater luminaires are installed in corrosive environments as described in 680.14, the wiring method of that portion of the branch circuit shall be _____.
680.23(F)(1) RMC or IMC or LFNC and PVC conduit
27. Wiring methods installed in c corrosive environments as described in 680.14 shall contain an insulated copper equipment grounding conductor sized in accordance with Table 250.122, but not smaller than 12 AWG
680.23(F)(1) TRUE
29. Wet-niche luminaires shall be connected to an equipment grounding conductor not smaller than _____ AWG.
680.23(F)(2) 12
30. The feeder to a swimming pool panelboard at a separate building or structure where installed in a corrosive environment can be supplied with any Chapter 3 wiring method provided the feeder has a separate insulated copper equipment grounding conductor.
680.25(A) FALSE
31. For equipotential bonding, the perimeter surface to be bonded shall be considered to extend for ________ ft horizontally beyond the inside walls of the pool and shall include unpaved surfaces and other types of paving.
680.26(B)(2) 3
32. Perimeter surfaces separated from the pool by a permanent wall or building _______ ft in height or more shall require equipotential bonding only o the pool side of the permanent wall or building.
680.26(B)(2) 5 ft
33. Circuits serving gas-fired swimming pool and spa water heaters operating at voltages above the low-voltage contact limit shall be provided with _______ protection for personnel.
680.28 GFCI
8. All electrical equipment installed in the water, walls, or decks of pools, fountains, and similar installations shall comply with the provisions of article 680, and equipment and products shall be _____________.
680.4 listed
34. In interior of a dwelling unit or in the interior of another building or structure associated with a dwelling unit, any of the wiring methods recognized or permitted in Chapter 3 of this Code shall be permitted to be used for the connection to the motor disconnecting means and the motor, heating, and control loads that are part of a self-contained _______ or a packaged spa or hot tub equipment assembly.
680.42(C) spa or hot tub
9. When installed for swimming pools, grounding and bonding terminals shall be _____________ for use and wet and corrosive environments.
680.7 identified
10. When installed for swimming pools, grounding and bonding terminals shall be _____________for direct burial use.
680.7 listed
36. For hydromassage bathtubs, small conductive surfaces not likely to become energized, such as air and water jets, supply valve assemblies, and drain fittings not connected to metallic piping, and towel bars, mirror frames, and similar nonelectrical equipment not connected to ______ shall not be required to be bonded.
680.74(A) Ex 1 metal framing
37. Where installed for hydromassage bathtubs, double-insulated _____ shall not be bonded.
680.74(A) Ex 2 motors and blowers
35. Where installed for hydromassage bathtubs, ______ shall be bonded together.
680.74(A)(4) and (5) all exposed metal surfaces that are within 5 ft of the inside walls of the tub and not separated from the tub area by a permanent barrier and electrical devices and controls that are not associated with the hydromassage tubs and that are located within 5ft form such units.
38. The 8 AWG solid bonding jumper required for equipotential bonding in the area of hydromassage bathtubs shall not be required to be extended to any ___________.
680.74(B) any of these: remote panelboard, service equipment, electrode
44. For PV systems, means shall be provided to disconnect equipment such as batteries, inverters, charge controllers, and the like, from all ungrounded conductors of all sources.
690.13 TRUE
45. Where PV source and output circuits operating at greater than ____ are installed in a(n) _______ location, the circuit conductors shall be guarded or installed in Type MC cable or in a raceway.
690.31(A) 30V, readily accessible
46. The conductors of PV output circuits and inverter input and output circuits shall be identified at all points of termination, connection and splices.
690.31(B) TRUE
47. Single-conductor Type USE-2and single-conductor cable ______ as PV wire can be run exposed at outdoor locations for PV source circuits within the PV array.
690.31(C)(1) listed and identified
48. Which of the following wiring methods and enclosures that contain photovoltaic power source conductors shall be marked "WARNING PHOTOVOLTAIC POWER SOURCE" by means of permanently affixed labels or other approved permanent marking?
690.31(G)(3)(1), (2), and (3) all of these Exposed raceways, cable trays, and other wiring methods. The covers or enclosures of pull boxes and junction boxes. Conduit bodies in which any of the available conduit openings are unused.
49. Listed fittings and connectors that are intended to be concealed at the time of on-site assembly are permitted for on-site interconnection of PV modules or other array components.
690.32 TRUE
50. The direct-current system grounding connection shall be made at any _______ point(s) on the PV output circuit.
690.42 single
39. Article 690 requirements pertaining to dc PV source circuits do not apply to ac PV modules. The PV source circuit, conductors and inverters are considered as internal wiring of an ac module.
690.6(A) TRUE
40. For one- and two-family dwellings, the maximum voltage for PV source or PV circuits is ________.
690.7 600V
41. Currents of PV systems are to be considered _________
690.8(B) continuous
42. In grounded PV source circuits, one overcurrent protection device is not permitted to protect the PV modules and the interconnecting conductors.
690.9(C) TRUE
43. For stand-alone PV systems, circuit breakers that are marked "Line" and "Load" can be back -fed
710.15(E) FALSE
