Electrical (01) Special Locations (26412-20)
In regard to outside branch circuits of overhead spans of open individual conductors for 1000 volts or less up to 50 feet in length, the NEC Superscript ® mandates the conductors to be NOT less than _____ copper in size.
10 AWG
In order to qualify as an assembly occupancy, a structure must be designed to hold at least _____.
100 people
On a floating pier, electrical connections within boxes that are not rated for submersion must be located at least _____ inches above the deck.
12
Conductors that supply footlights must have a minimum insulation rating of _____°C.
125
Individual partitions or grouped partitions cannot contain more than _____ receptacle outlets rated 15A, 125V.
13
For portable structures such as tents at circuses and similar areas, what is the clearance required in any direction from overhead conductors operating at 600V or less?
15 feet (4.5 m)
Underwater luminaires can be supplied with power not to exceed _____ volts between circuit conductors.
150
If a flexible cord or cable supplies a wet-niche luminaire, the cord or cable must contain an insulated copper equipment-grounding conductor no smaller than No. _____.
16 AWG
When installing border lighting for stages in theaters, the luminaires shall be arranged so that branch circuits will carry a load to NOT exceed _____.
20 amperes
The required overhead clearance to the water's edge of a swimming pool for insulated cables supported by a solidly grounded, bare messenger wire or a grounded neutral conductor in the voltage range of 0-750V to ground is _____.
22.5 feet (6.9 m)
Electrical distribution systems within boatyards and piers cannot exceed _____.
250V phase-to-phase
In a marina, the disconnecting means for a boat receptacle outlet must be readily accessible and NOT more than _____ from the receptacle.
30 inches
In most cases, wiring may not be installed within _____ feet horizontally from the inside wall of a pool.
5
For spas and hot tubs, wall switches must be located away from the inside walls of the tub by at least _____.
5 feet (1.5 m)
An amusement ride at a fair must have a disconnect switch within _____ feet of the ride operator.
6
The size of the bonding conductor for portable buildings at carnivals, circuses, or fairs must be accordance with NEC Table 250.122, based on the largest overcurrent device supplying the portable structures, but never smaller than No. _____.
6 AWG
When outlet boxes or other device boxes are installed outdoors at circuses, fairs, and similar locations, the boxes must be weather-proof and mounted so the bottom of the box is at least _____.
6 inches (150 mm) off the ground
All swimming pool electric water heaters shall have the heating elements subdivided into loads NOT exceeding 48 amperes and protected at NOT over _____.
60 amperes
In an area where temporary wiring supplies a voltage greater than _____ volts, a barrier must be erected to keep unauthorized persons from entering the area.
600
Holiday lighting, considered temporary wiring, must be removed within _____.
90 days of the date of installation
Which of the following places would not be considered an assembly occupancy?
A doctor's office
Which of the following conduit types is not acceptable to carry branch circuit conductors for a swimming pool pump installed outdoors?
EMT
All cables and cords used to supply power at a circus, fair, or similar venue must be rated for extra-hard usage.
False
A 125-volt general-purpose receptacle installed in a dirt confinement area for livestock does not need ground-fault protection.
False
Switches installed near a pool must always be kept at least 5' from the pool's edge.
False
Use an insulated, stranded copper conductor when bonding equipotential planes.
False
Which of the following is not a requirement for flexible cables used as permanent wiring on a floating pier?
Must be rated for hard usage
Is it acceptable to hang bare light bulbs as part of a temporary lighting scheme?
No
Which statement about theater lighting and wiring is correct?
Portable switchboards must be installed within an enclosure.
Wiring for portable switchboards may be in the form of flexible cords and cables.
True
The use of electrical nonmetallic tubing and rigid nonmetallic conduit in spaces of assembly is restricted to certain areas such as club rooms if the building contains _____.
combustible supports
The hazard classification of a fueling area in a marina is determined by the _____.
construction of the fueling dock or pier
It is not necessary to install a box for splices or connections on construction sites in nonmetallic multiwire cord or cable assemblies as long as the equipment grounding conductor's _____.
continuity is maintained
When buried raceways pass under streets, roads or driveways, the MINIMUM cover requirements _____.
do not change in regard to wiring methods used
Any electrical connection on a fixed pier must be at least 12 inches (305 mm) above the deck of the fixed pier, but never below the _____.
electrical datum plane
Bare bulbs used with backstage lighting must be _____.
equipped with lamp guards
Building materials used in assembly occupancies are required to have a(n) _____.
fire rating
Where land areas are affected by tidal fluctuations, the electrical datum plane is 2 feet (600 mm) above the highest _____.
high tide for the area
Temporary wiring on a construction site must be removed _____ when the job is done.
immediately
A cord used to supply a landscape fountain must be _____.
listed for wet usage
In a manually controlled stage switchboard, all dimmers and switches are operated by handles that are_____.
mechanically linked to the control devices
Luminaires used in agricultural buildings must be designed to minimize the entry of _____.
moisture, corrosive particles, dust
A(n) _____ is often used to connect portable stage switchboards to fixed lighting outlets.
patch panel
In areas subject to flooding, the electrical datum plane is _____.
2' above the prevailing high water mark
Storable pool filter pumps that are cord-connected must be _____.
double-insulated
Cords and cables used for border lights must be listed for _____.
extra-hard usage
If two or more agricultural buildings are supplied overhead from a distribution point, a ____.
site-isolating device must be installed
Outlet boxes installed on the outside of a concession stand at a circus must be _____.
weather-proof