Special Occupancies and Equipment Flashcards
. A receptacle outlet installed on the outside of a gasoline service station building wall is not considered to be located within a Class I, Division 2 location as long as it is not less than 18 in. above grade level or located a distance from the edge of a dispensing device less than: A. 10 ft. B. 12 ft. C. 20 ft. D. 25 ft. E. 50 ft.
C 20 ft
Table 514.3(B)(1)
A difference between a mobile home and manufactured home is that a manufactured
home:
A. is only permitted to be mounted on a permanent foundation.
B. is required to have the service mounted separate from the manufactured home.
C. is required to be constructed with at least two separate sections.
D. does not bear the label required for a mobile home.
E. bears a label identifying it as a manufactured home and it is designed to be used
with or without a permanent foundation.
E A manufactured home will have a label and it is designed to be mounted on a foundation, but
not required to be mounted on a foundation. In 550.2 compare the definitions of a mobile home
and a manufactured home.
In a hospital, the exit sign circuit is a part of the:
A. equipment system.
B. critical branch of the emergency system.
C. normal power system.
D. alternate power branch of the normal power system.
E. life safety branch of the emergency system.
E Life Safety Branch
According to 517.42(B), Exit signs are to be supplied by the life safety branch of the
emergency electrical system.
The minimum number of circuits serving the patient bed location of a general care area of
a hospital is:
A. one. C. three. E. not specified.
B. two. D. four.
B two
Section 517.18(A) requires two separate circuits to supply power to each bed location of a
general care area.
The circuit conductors from an emergency panelboard to exit signs in a building are:
A. required to be run only as metal sheathed cable.
B. required to be run in rigid metal conduit.
C. permitted to be run in the same electrical metallic tubing with normal power
conductors provided all conductors have 600 volt insulation.
D. required to be run only in metallic raceway.
E. not permitted to be run in the same raceway with other power or lighting circuit
conductors.
E. Exit sign wiring and normal power circuits must be in separate raceways
Section 700.9(B) requires exit sign circuits to be completely independent of normal power
circuits which means they must be kept separated if run in cable and not run in the same
raceway.
A place of assembly is considered a building or portion of a building or structure designed
or intended for the assembly of:
A. 50 persons or more.
B. 100 persons or more.
C. 200 persons or more.
D. 500 persons or more.
E. more than 1000 persons.
B 100 persons or more
This is stated in 518.1 where some examples of places of assembly are given.
Connections of the common bonding grid for a permanent in ground swimming pool are
required to be made using pressure connectors or clamps listed for the purpose or by:
A. exothermic welding.
B. bolted connections.
C. soldering.
D. underground wire nuts.
E. steel clamp connectors.
A exothermic welding
Section 680.26(B)(2)(b)(3) is concerned with corrosion, and connections of the common bonding
grid are required to be made with listed connectors or they are to be made by exothermic
welding.
A lighting fixture approved for installation in a Class I, Division 1, hazardous location with
Group D vapors and a temperature range identification number of T3B has a maximum
operating temperature of:
A. 329EF. C. 425EF. E. 842EF.
B. 380EF. D. 500EF.
A 329 F
Table 500.8(C)(4) gives the various maximum operating temperatures that correspond with
identification numbers.
The disconnecting means for power to a recreational vehicle at an RV site is required to be located not less than 2 feet above ground and be located above the ground level not more
than:
A. 4 feet. C. 5 feet. E. 6½ feet.
B. 4½ feet. D. 6 feet.
E 6.5 feet
Section 551.77(D) specifies the minimum and maximum height for the electrical power
disconnect at a recreational vehicle camp site.
General purpose 125 volt, 15 or 20 ampere receptacles are not permitted to be located closer than 6 ft to the inside wall of a permanent swimming pool at a dwelling where space is not restricted. At least one receptacle served by a general purpose branch circuit is required to be installed such that it is not located from the inside wall of the pool more than:
A. 12 ft. B. 15 ft. C. 20 ft. D. 25 ft. E. 50 ft.
20 ft
680.22(A)(3) requires that a 15 or 20 ampere rated 125 volt receptacle be installed not closer than 10 ft but not more than 20 ft from the inside edge of a permanent swimming pool at a dwelling. When space is restricted, 680.22(A)(4) permits the receptacle to be closer than 10 ft, but not closer than 5 ft.
Type MC cable used for branch circuit wiring in a restaurant is required to have an insulated equipment grounding conductor in the cable if the restaurant is designed for the assembly of:
A. 75 or more people. B. 100 or more people. C. 150 or more people. D. 200 or more people. E. 500 or more people.
100 or more persons
518.1 states that the rules of this article apply in cases where the building will have 100 or more people. 518.2 specifically states that a restaurant is considered to be a plate of assembly, and 518.4(A) gives the requirements for cable construction when type MC cable is installed in a place of assembly.
Of the following cables, the type permitted to be run exposed through a commercial building ceiling used as an environmental air handling space for a class 2 power limited circuit is marked:
A. CL2. B. CL3. C. CL2R. D. CL2P. E. CL2X.
D CL2P
722.135(A) or Table 722.135 specifies the type of cable that is permitted to be installed as an exposed cable within an environmental air handling space. Other types not approved as exposed cable are permitted as long as they are installed in metal raceway. Another location where the answer can be found is 722.179(B) and Table 725.179.
