Lesson 8: Articles 511 Through 513 - Specific Locations Flashcards
A major repair garage is a building or portions of a building where major repairs, such as engine overhauls, painting, body and fender work, welding or grinding, and repairs that require draining or emptying of the motor vehicle fuel tank are performed on motor vehicles, including associated floor space used for offices, parking, or showrooms.
a. True
b. False
NEC REF:
a. True
100
A minor repair garage is a building or portions of a building used for lubrication, inspection, and minor automotive maintenance work, such as engine tune-ups, replacement of parts, fluid changes (e.g., oil, antifreeze, transmission fluid, brake fluid, air-conditioning refrigerants), brake system repairs, tire rotation, and similar routine maintenance work, including the associated floor space used for offices, parking, or showrooms.
a. True
b. False
NEC REF
a. True
100
Where major and minor repair garages dispense Class I liquids other than fuels, the area within ______ of any dispensing point, extending in all directions shall be a Class I, Division 2 location.
a. 2’
b. 3’
c. 4’
d. 6’
NEC REF:
b. 3’
511.3(B)
The entire space within any pit, below grade work area, or subfloor work area in a minor repair garage that is provided with ventilation of at least 1 ft3/min/ft2 of floor area, with suction taken from a point within ______ of floor level is considered unclassified.
a. 6”
b. 10”
c. 12”
d. 18”
NEC REF:
c. 12”
Table 511.3(C)
Where Class I liquids or gaseous fuels are transferred or dispensed in a major repair garage, the area up to ______ above floor level of the room is Class I, Division 2 for the entire floor area.
a. 12”
b. 18”
c. 24”
d. none of the above
NEC REF:
b. 18”
Table 511.3(C)
In major repair garages where vehicles using lighter-than-air gaseous fuels such as hydrogen and natural gas are repaired or stored the area within 18 inches of the ceiling is classified as ______.
a. Class I, Division 1
b. Class I, Division 2
c. Zone 2
d. b. or c.
NEC REF:
d. b. or c.
Table 511.3(D)
Where Class I liquids or gaseous fuels are not transferred or dispensed in a minor repair garage, the area up to 18 inches above floor level extending three feet horizontally in all directions from opening to any pit, below grade work area, or subfloor work area that is not ventilated is considered ______.
a. Class I, Division 1
b. Class I, Zone 1
c. Class I, Zone 2
d. unclassified
NEC REF:
c. Class I, Zone 2
Table 511.3(C)
Electrical equipment installed above hazardous (classified) locations in commercial repair and storage garages in a fixed position shall be located above the level of any defined Class I location or shall be ______ for the location.
a. approved
b. identified
c. labeled
d. listed
NEC REF:
b. identified
511.7(B)(1)
Where plug connections for electric vehicle charging equipment are made to vehicles and the cord is suspended from overhead, it shall be arranged so that the lowest point of sag is at least ______ above the floor.
a. 6”
b. 12”
c. 18”
d. 24”
NEC REF:
a. 6”
511.10(B)(3)
Portable equipment is equipment with electrical components suitable to be moved by a single person without mechanical aids. (CMP-14)
a. True
b. False
NEC REF:
a. True
100
All exterior surfaces of portable lighting equipment used in Class I locations that might come in contact with battery terminals, wiring terminals, or other objects shall be of nonconducting material or shall be effectively protected by the location.
a. True
b. False
NEC REF:
b. False
511.4(B)(2)
Where cannabis oil equipment and systems other than booths release flammable gases or vapors, the space within ______ in all directions from any such equipment or container and extending to the floor or grade level shall be classified as Class I, Division 1 or Zone 1, whichever is applicable.
a. 3’
b. 5’
c. 6’
d. 10’
NEC REF:
a. 3’
512.3(A)(1)(1)
Where flammable gases or vapors are not released from cannabis oil equipment and systems other than booths, except during disconnection or opening and listed equipment is marked to indicate that the level of release during disconnection or opening is maintained below ______ LFL without ventilation, flammable solvents shall not be released during the extraction process except during disconnecting or opening of vessels containing flammable solvents, or during off-gassing of spent material or extracted plant oil.
a. 20%
b. 25%
c. 30%
d. 35%
NEC REF:
b. 25%
512.3(A)(2)
The space within 3 feet of any opening in cannabis oil booths where flammable gases or vapors are released shall be classified as ______, whichever is applicable.
I. Class I, Division 1
II. Class I, Division 2
III. Unclassified
IV. Zone 1
V. Zone 2
a. I. or IV.
b. II. only
c. II. or V.
d. III. only
NEC REF:
c. II. or V.
512.3(B)(1)(2)
If cannabis oil equipment and systems that do not release flammable gases or vapors except during disconnection or opening have a sump, pit, or channel that extends beyond 10 feet horizontally from the vapor source, it shall be provided with a vapor stop or it shall be classified as Class I, Division 1 or Zone 1 for ______.
a. 20’ beyond the 10’
b. 30’ beyond the 10’
c. 40’ beyond the 10’
d. its entire length
NEC REF:
d. its entire length
512.3(A)(2)(5)
Other than above cannabis oil booths, all fixed wiring installed at an elevation above hazardous (classified) locations shall be in metal raceways, PVC conduit, RTRC conduit, or ENT conduit. Where used, cables shall be Type MI, Type TC, Type MC, or Type PLTC.
a. True
b. False
NEC REF:
b. False
512.13
Where all electrical equipment within cannabis oil booths is listed for Class I, Division 1 or Zone 1 locations, gas detection shall not be required to be provided within the booth.
a. True
b. False
NEC REF:
a. True
512.20
Cannabis oil extraction equipment that uses flammable materials (solvents) in the process of extracting the plant oil from the plant material shall be ______ for the location.
a. approved
b. identified
c. listed
d. suitable
NEC REF:
c. listed
512.20(B)
Any combination of cannabis oil equipment ______ for the overall extraction process (e.g., cannabis oil preparatory equipment, cannabis oil extraction equipment, cannabis oil booths, cannabis oil post-processing equipment) shall be listed for the location.
a. installed
b. needed
c. required
d. used
NEC REF:
b. needed
512.20(E)
Equipment that could produce arcs, sparks, or hot metal particles, such as lamps and lampholders for fixed lighting, cutouts, switches, receptacles, motors, or other equipment having make-and-break or sliding contacts, where installed above a classified location including cannabis oil booths, shall be of the totally enclosed type or be constructed to prevent the escape of sparks or hot metal particles.
a. True
b. False
NEC REF:
b. False
512.30
Cannabis oil preparatory equipment, extraction equipment, booths, and post-processing equipment shall be listed and marked to show the hazardous (classified) location for which it is ______ to be installed.
a. approved
b. identified
c. listed
d. permitted
NEC REF:
d. permitted
512.32
The area within ______ horizontally from aircraft power plants or aircraft fuel tanks in aircraft storage and maintenance hangars shall be classified as a Class I, Division 2 or Zone 2 location that shall extend upward from the floor to a level ______ above the upper surface of wings and of engine enclosures.
a. 5’ / 5’
b. 5’ / 10’
c. 10’ / 10’
d. none of the above
NEC REF:
a. 5’ / 5’
513.3(C)(1)
Attachment plugs and receptacles in the Class I locations of aircraft hangars shall be identified for the location or shall be designed so they ______ while the connections are being made or broken.
a. cannot be energized
b. will not arc
c. will not spark
d. none of the above
NEC REF:
a. cannot be energized
513.4(A)
All wiring installed in or under the hangar floor shall comply with the requirements for ______ locations.
a. Class I, Division 1
b. Class I, Division 2
c. unclassified
d. none of the above
NEC REF:
a. Class I, Division 1
513.8(A)
