CSP4:3
Branch-circuit conductors supplying information technology equipment shall have an ampacity of not less than ? of the total connected load.
125% 645.5(A)
The minimum size conductor generally permitted for a lighting circuit in a traveling elevator cable is ? copper.
14 AWG 620.12(A)(1)
The main common-return conductor in the electromagnetic supply for a pipe organ shall not be less than ? .
14 AWG 650.6(A)
In general, the main contact conductors carried along runways for a crane shall be supported on insulating supports at intervals not exceeding ? .
20' 610.21(C)
A working space of at least three feet high by three feet deep by ? wide shall be provided at each ballast, transformer, electronic power supply, and Class 2 power source, or at its enclosure where not installed in an electric sign.
3' 600.21(D)
Irrigation cable for electrically-driven irrigation machines is required to be supported at intervals not exceeding ? .
4' 675.4(C)
The ampacity of the branch-circuit supply conductors for X-ray equipment shall not be less than ? of the momentary rating of the equipment or 100% of the long-time rating, whichever is greater.
50% 660.6(A)
What NEC location covers the scope of the article addressing integrated electrical systems, other than unit equipment, in which orderly shutdown is necessary to ensure safe operation?
685.1
Article ? contains the provisions for wind (turbine) electric systems that consist of one or more wind electric generators.
694
The total connected load of an electroplating equipment installation is 72 amperes. What is the minimum ampacity of the branch-circuit conductors?
90 A 669.5
Which of the following is/are permitted to be used for overcurrent protection for an electroplating DC circuit?
A current-sensing device that operates a disconnecting means, An approved means, Fuses or circuit breakers 669.9
Type AC cable is used as a branch circuit to supply receptacles for information technology equipment. The Type AC cable is installed under an accessible area, under a raised floor of approved construction. The cable is installed in accordance with 300.11.
Acceptable 645.5(E)
The allowable ampacities of insulated copper conductors used with short-time rated crane and hoist motors is determined from Table 310.16.
False 610.14(A)
Conductors for audio signal conductors are not permitted to be installed in a metallic auxiliary gutter.
False 640.24
Article 668 covers electrolytic cells used as a source of electric energy and for cells used for the production of hydrogen.
False 668.1
Which of the following cables would not be permitted as an output cable to an electric vehicle?
SJO 625.17(B)
? branch circuits shall supply elevator hoistway pit lighting and receptacles.
Separate 620.24(A)
? is defined as neon tubing that is itself the sign or outline lighting and is not attached to an enclosure or sign body.
Skeleton tubing 100
Identify the scope of Article 626.
The provisions of Article 626 covers the electrical conductors and equipment external to the truck or transport refrigerated unit that connects nonpropulsion electrical elements of trucks or transport refrigerated units to a supply of electricity, and the installation of equipment and devices related to electrical installations within an electrified truck parking space.
All definitions in the NEC are located in Article 100.
True
A hoistway is defined in the NEC as any shaftway, hatchway, well hole, or other vertical opening or space in which an elevator or dumbwaiter is designed to operate.
True 100
By definition, an electric sign can be fixed, stationary, or portable self-contained.
True 100
The NEC defines industrial machinery, in part, as a power-driven machine not being portable by hand while working.
True 100
The provisions of Article 604 apply to field-installed wiring using off-site manufactured subassemblies for branch circuits in accessible areas.
True 604.1
Electrical vehicle charging systems are covered by the NEC.
True 625.1
All electric vehicle supply equipment and wireless power transfer equipment covered by the scope of Article 625 must be listed.
True 625.6
When an arc welder does not have a built-in disconnecting means, a circuit breaker is permitted to be used as the disconnecting means.
True 630.13
A 2-wire, DC, integrated electrical circuit is permitted to be ungrounded.
True 685.12
A fire pump shall be permitted to be supplied by an on-site power production facility where conditions for its use are met.
True 695.3(A)(2)
Which of the following wiring methods is not permitted for wiring from a fire pump controller to a fire pump motor?
Type AC cable 695.6(D)
A remote ballast for a lighting fixture associated with an electric sign or outline lighting covered by Article 600 is installed above a suspended ceiling. The enclosure for the ballast is securely fastened, and it is dependent on the ceiling grid system for support.
Violation 600.21(F)
The scope of an article in the NEC is located in the ? section of an article.
XXX.1
Portable or mobile signs in wet or damp locations shall be provided with a manufacturer-supplied ? .
ground-fault circuit interrupter 600.10(C)(2)
Equipment for use in electroplating processes shall be ? .
identified for such service 669.3
The equipment and systems covered in 690.4(A) through (D) and all associated wiring and interconnections must be installed by ? only.
qualified persons
In general, power circuits for fire pumps ? have automatic protection against overloads.
shall not 695.6(C)
The basic photovoltaic (PV) device which generates electricity when exposed to light is called a(n) ? .
solar cell 100
Machinery used as part of or in connection with an electrical installation would be considered equipment by definition.
true 100
Special permission means the authority having jurisdiction has given ? .
written consent 100
