NEC Chapter 2: Planning the Installation
Exception No. 1, located after list item 4 in the first-level subdivision 210.8(B), does not apply to all four of the list items in this first-level subdivision. Which list items does this exception apply to?
(3) and (4)
The feeder load for each small-appliance branch circuit required in a dwelling unit is calculated at ?
1,500 VA, 220.52(A)
Overhead branch-circuit conductors, where the voltage does not exceed 150 volts to ground, nominal, shall have a minimum overhead clearance of ? when crossing over a sidewalk.
10', 225.18(1)
Service-entrance cables shall be supported within ? of the service head.
12", 230.51(A)
The maximum nominal voltage permitted for a luminaire installed in a motel room is ?
120V, 210.6(A)(1)
The minimum calculated feeder load for 12 feet of show window lighting is ?
2,400VA, 220.43(A)
How many first-level subdivisions exist in Section 250.122?
7
In general, overhead service drop conductors shall have a vertical clearance of not less than ? from all points of roofs above which they pass.
8', 230.24(A)
A rod-type grounding electrode shall not be less than ? in length.
8',250.52(A)(5)
The broad scope of Chapter 2, Wiring and Protection, is addressed by subdividing this chapter into ? articles.
9
An 8 AWG gray insulated neutral conductor is installed to supply a 120-volt electrical heater.
Acceptable, 200.6(A)
One common neutral conductor is installed with two sets of 120/208-volt, 3-phase, 4-wire feeders.
Acceptable, 215.4(A)
Match the article title with the appropriate NEC article.
Branch Circuits → Article 210 Branch-Circuit, Feeder, and Service Load Calculations → Article 220 Feeders → Article 215 Overvoltage Protection → Article 242 Outside Branch Circuits and Feeders → Article 225 Grounding and Bonding → Article 250 Use and Identification of Grounded Conductors → Article 200 Services → Article 230 Overcurrent Protection → Article 240
Surge-protective devices (SPDs) shall be permitted to be located indoors or outdoors and shall be made accessible to unqualified persons unless listed for installation in inaccessible locations.
F, 242.22
Circuit breakers used for switching fluorescent lighting circuits shall be marked ?
HID or SWD, 240.83(D)
The general provisions for the location of overcurrent protective devices are located in Article 240. This article also provides requirements for the application of feeder taps and transformer secondary conductors meeting the definition of tap conductors. The definition of tap conductors is located in ? .
Section 240.2
A conductor with continuous white or gray covering shall be used only for the grounded circuit conductor.
T, 200.7
The required branch-circuit overcurrent protection rating for a continuous load of 80 amperes is 100 amperes.
T, 210.20(A)
In general, the NEC requires a conductor to have overcurrent protection at the point where the conductor receives its supply.
T, 240.21
General-purpose branch circuits rated at 30 amperes are installed for lighting and receptacle circuits in dwelling unit(s).
Violation, 210.23(B)
In a strip mall shopping center, the service conductors for Building No. 2 pass through the interior ceiling space of Building No. 1.
Violation, 230.3
A supplementary grounding electrode is required when the only grounding electrode available is ?
a metal underground water pipe, 250.53
A ? is defined as an area including a sink (basin) with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures.
bathroom, 100
A(n) ? is defined as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).
branch circuit, 100
Type 2 SPDs shall be connected anywhere on the ? side of a service disconnect overcurrent device required in Section 230.91 unless installed in accordance with NEC 230.82(8).
load, 242.14(A)
