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Question 1 of 100
A surge protective device (SPD) shall be marked with a short-circuit current rating and shall not be installed at a point on the system where the available fault current in excess of that rating. This marking requirement shall not apply to _____________________.
Question 2 of 100
Type S fuse-holders and adaptors shall be ________________ so that either the fuse-holder itself or the fuse-holder with a Type S adaptor inserted cannot be used for any fuse other than a Type S fuse.
Question 3 of 100
The demand load for (5) dryers in a single family dwelling unit, rated at 6,000VA each, is ________________.
Question 4 of 100
The total A/C and heating load for a single-family dwelling unit with a 240V, 18,000 VA heating load and a 240V 12,000VA A/C load is __________________________.
Question 5 of 100
Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage ______________ the current that is available at the line terminals of the equipment.
Question 6 of 100
A box containing pendant- or flush-mounted receptacles attached to a multiconductor cable via strain relief or a multipole connector is:
Question 7 of 100
Service conductors installed as open conductors or multiconductor cable without an overall outer jacket shall have a clearance of __________ from windows that are designed to be opened, doors, porches, balconies, ladders, stairs, fire escapes, or similar locations.
Question 8 of 100
Panelboard cabinets and panelboard frames, if of metal, shall be in physical contact with each other and shall be connected to a(n) ______________________.
Question 9 of 100
Audio system equipment supplied by branch-circuit power shall not be placed horizontally within ____________ of the inside wall of a pool.
Question 10 of 100
Electrical continuity at service equipment, service raceways, and service conductor enclosures shall be ensured by one of the following methods:
Question 11 of 100
In an outside branch circuit, open conductors shall be separated from open conductors of other circuits or systems by not less than _______________________________.
Question 12 of 100
In dormitories overcurrent devices, other than supplementary overcurrent protection, ___ be permitted to be located in bathrooms.
Question 13 of 100
What’s the ampacity of 4 current carrying 8AWG THHN conductors installed in an ambient temperature of 90°F?
Question 14 of 100
Snap switches are considered to be part of an effective ground-fault current path when _______________.
Question 15 of 100
Swimming pool electrical equipment shall be permitted to be installed in rooms or pits that do not have drainage that prevents water accumulation during normal operation or filter maintenance.
Question 16 of 100
How many 1/0 AWG XHHW-2 conductors shall be permitted to be installed in a run of 2″ EMT?
Question 17 of 100
A building or other structure that is served by a branch circuit or feeder on the load side of a service disconnecting means shall be supplied by only one feeder or branch circuit unless:
Question 18 of 100
What is the allowable ampacity for (6) 1/0 AWG THW copper conductors in a raceway inside of a 104°F room?
Question 19 of 100
The minimum sized TW copper branch-circuit conductors feeding a 35A continuous load shall be:
Question 20 of 100
The locked-rotor current of each single-phase hermetic refrigerant motor-compressor having a rated-load current of more than 9 amperes at 115 volts, or more than 4.5 amperes at 230 volts, and each polyphase motor-compressor shall __________.
Question 21 of 100
The output circuits of the power supply feeding low voltage lighting systems shall be rated for __________ maximum under all load conditions.
Question 22 of 100
Type AC cable shall be permitted to be __________.
Question 23 of 100
Double-throw knife switches shall be permitted to be mounted so that the throw is ____________________
Question 24 of 100
For permanently connected appliances rated over 300VA, the circuit breaker shall be permitted to serve as the disconnecting means where the switch or circuit breaker _____________ from the appliance or is lockable.
Question 25 of 100
A unit that is built on a single chassis mounted on wheels and has a gross trailer area not exceeding 400 ft^2 in the set-up mode is considered a(n):
Question 26 of 100
The total marked rating of a cord- and attachment-plug-connected room air conditioner shall not exceed ____________________ of the rating of a branch circuit where no other loads are supplied.
Question 27 of 100
A multioutlet assembly shall be permitted to be installed ______________________.
Question 28 of 100
In ferrous metal enclosures all phase conductors and, where used, the grounded conductor and all equipment grounding conductors shall be _________________________________.
Question 29 of 100
Receptacle outlets of park trailers shall be installed at wall spaces __________ wide or more so that no point along the floor line is more than 6 ft, measured horizontally, from an outlet in that space.
Question 30 of 100
Vegetation such as trees ______be used for support of overhead service conductors or service equipment.
Question 31 of 100
Select the ampacity for (3) 6 AWG THWN conductors installed in a 2″ EMT raceway inside a building with an ambient temperature of 57°F.
Question 32 of 100
The use of strut-type channel raceways shall not be permitted ____________.
Question 33 of 100
Luminaires shall be wired so that the screw shells of lampholders are connected to the same luminaire or circuit conductor or terminal. The ______________, where connected to a screw shell lampholder, shall be connected to the screw shell.
Question 34 of 100
Receptacles rated __________ and designed for the direct connection of aluminum conductors shall be marked CO/ALR.
Question 35 of 100
All electric pool water heaters shall have the heating elements subdivided into loads not exceeding _______________ and protected at not over 60A.
Question 36 of 100
Temporary holiday decorative lighting shall be permitted for a period not to exceed _______________ days.
Question 37 of 100
The ampacity of UF cable shall be that of _______________.
Question 38 of 100
The connection of a grounding electrode conductor or bonding jumper to a grounding electrode shall be made in a manner that will ensure _______________.
Question 39 of 100
Where not allowed through special conditions, a building or other structure that is served by a branch circuit or feeder on the load side of a service disconnecting means shall be supplied by _______________.
Question 40 of 100
A(n) _______________ is a conducting object through which a direct connection to earth is established.
Question 41 of 100
_______________ protection shall be provided for outlets that supply dishwashers installed in dwelling unit kitchens.
Question 42 of 100
Screws used for the purpose of attaching receptacles to a box shall be machine screws having _______________ threads per inch.
Question 43 of 100
The frames of ranges, wall-mounted ovens, counter-mounted cooking units, and _______________ shall be permitted for existing installations to be connected to the grounded circuit conductor.
Question 44 of 100
Nonmetallic-sheathed cable shall be supported and secured by staples; straps, hangers, or similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 4 1/2 ft and within _______________ inches of every cable entry into enclosures.
Question 45 of 100
All 15- and 20A, 125- and 250V non-locking type receptacles in dwelling units shall be listed_______________receptacles.
Question 46 of 100
Where PV source and output circuits operating at voltages greater than 30 volts are installed in readily accessible locations, circuit conductors shall be guarded or installed in _______ or in raceway.
Question 47 of 100
No parts of cord-connected luminaires shall be located within a zone measuring horizontally _______________ feet and 8 feet vertically from the top of the bathtub rim or shower stall threshold.
Question 48 of 100
In a dwelling unit, receptacles installed in _______________ must be protected by a GFCI receptacle.
Question 49 of 100
In dwellings, a receptacle outlet shall be installed at each wall countertop that is _______________ inches or wider.
Question 50 of 100
In a dwelling unit which of the following areas are not required to be AFCI protected?
Question 51 of 100
In which area shall all 120V, single-phase, 15-and-20A dwelling branch circuits supplying outlets or devices, be protected by an AFCI device?
Question 52 of 100
A pool panel requires (3) 6AWG THHN conductors to feed it, what is the minimum sized schedule 40 PVC conduit that can be used as a raceway for these conductors?
Question 53 of 100
A Single-Phase, 3-wire 240V service has 2/0 copper ungrounded service entrance conductors, what is the minimum size grounding electrode conductor that must be installed?
Question 54 of 100
Completed wiring installations shall be free from short circuits, ground faults, or __________ other than as required or permitted
Question 55 of 100
The overhead conductors between the service point and the first point of connection to the service-entrance conductors at the building or other structure are defined as:
Question 56 of 100
At least one receptacle(s) outlet shall be installed in bathrooms within _______________ feet of the outside edge of each basin.
Question 57 of 100
Equipment intended to interrupt current at fault levels shall have an interrupting rating at nominal circuit voltage _________ the current that is available at the line terminals of the equipment.
Question 58 of 100
Direct-burial cables installed under a two-family driveway shall be buried at a depth of __________.
Question 59 of 100
A _______________ is an enclosure designed for surface mounting that has swinging doors or covers secured directly to and telescoping with the walls of the enclosure.
Question 60 of 100
Where caution, warning, or danger signs or labels are required, the labels shall be __________.
Question 61 of 100
Exposed runs of insulated wires and cables that have a bare lead sheath or a braided outer covering shall be __________ to prevent physical damage to the braid or sheath.
Question 62 of 100
The minimum sized equipment grounding conductor (EGC) required to ground equipment served by a 40A rated branch-circuit is _______________AWG copper.
Question 63 of 100
When calculating a service load, a load of not less than_______________ volt-amperes shall be included for each 2-wire laundry branch circuit installed.
Question 64 of 100
Two single-pole switches capable of individual operation shall be permitted on multiwire circuits provided they are equipped with identified handle ties to disconnect all ungrounded conductors _______________.
Question 65 of 100
All pull boxes, junction boxes, and conduit bodies shall be provided with covers compatible with the box or conduit body construction and __________.
Question 66 of 100
A single-family dwelling has a single-phase 125A sub-panel in the garage with a 125A main breaker protecting it. What size equipment grounding conductor shall be used to feed the sub-panel?
Question 67 of 100
Snap switches rated 20A or less directly connected to aluminum conductors shall be listed and marked ______________.
Question 68 of 100
A single-phase 3-wire 200A service is constructed at a residence with 3/0 service-entrance conductors. What size copper grounding electrode conductor needs to be installed on this service?
Question 69 of 100
_______________ equipment utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes.
Question 70 of 100
The largest number of 4AWG THW conductors that can be installed in an 1 1/4″ Type A Liquidtight Flexible Nonmetallic Conduit (LFNC-A), who’s length is no more than 18″ shall be:
Question 71 of 100
When concealed knob-and-tube wiring is spliced, _______________ or strain splices shall not be used.
Question 72 of 100
The continuity of a __________ shall not depend on a connection to a metallic enclosure, raceway, or cable armor.
Question 73 of 100
Where grounded conductors of different systems are installed in the same raceway, cable, box, auxiliary gutter, or other type of enclosure, each grounded conductor shall be identified by _______.
Question 74 of 100
A 1000A service is being installed on a dwelling with a total calculated load of 1057A. Rather than installing (2) extremely large parallel conductors, it has been decided to run (4) smaller THWN conductors that, when combined, are equivilant to the total circular mil area of the larger conductors, for ease of install. What (4) conductors should be run for this service?
Question 75 of 100
Any equipment used in the dc circuits of a direct-current micro grid shall be listed and labeled for __________.
Question 76 of 100
Feeder and branch circuit conductors that are installed on docking facilities shall be provided with ground-fault protection set to open at currents exceeding _________.
Question 77 of 100
For battery chemistries with __________, the structure that supports the battery shall be resistant to deteriorating action by the electrolyte.
Question 78 of 100
Where mating dissimilar metals, antioxidant material suitable for the battery connection shall be:
Question 79 of 100
Type 1 surge protection devices (SPDs) installed at services shall be connected to which of the following?
Question 80 of 100
Circuits exceeding 120 volts, nominal, between conductors and not exceeding 277 volts, nominal, to ground shall be permitted to supply _________.
Question 81 of 100
In dwelling units and guest rooms or guest suites of hotels, motels, and similar occupancies, the voltage shall not exceed _________, nominal, between conductors that supply the terminals of luminaires
Question 82 of 100
For an Energy Storage System (ESS), the disconnecting means for all ungrounded conductors derived from the ESS shall be _________.
Question 83 of 100
Conductors shall be considered outside the building when installed in conduit and under not less than __________ of earth beneath a building or other structure.
Question 84 of 100
Up to three sets of 3-wire feeders or _______________sets of 4-wire or 5-wire feeders shall be permitted to utilize a common neutral.
Question 85 of 100
In no case shall a service point of attachment be less than _______________ above finished grade.
Question 86 of 100
Where used at a point on a circuit, the surge-protective device SPD shall be connected to ___________.
Question 87 of 100
Intermediate Metal Conduit (IMC) shall be permitted to be installed in or under cinder fill where subject to permanent moisture where protected on all sides by a layer of noncinder concrete not less than __________ thick
Question 88 of 100
The working clearance for a park trailer panelboard shall be not less than _______________ inches wide and 30 inches deep.
Question 89 of 100
Receptacles shall be mounted not less than _________ above the deck surface of the pier and not below the electrical datum plane on a fixed pier.
Question 90 of 100
The sum of cross-sectional areas of all contained conductors or cables at any cross section of a nonmetallic wireway shall not exceed _________ of the interior cross-sectional area of the nonmetallic wireway.
Question 91 of 100
For permanently connected appliances rated at not over _______________ or 1⁄8 hp, the branch-circuit overcurrent device shall be permitted to serve as the disconnecting means where the switch is within sight from the appliance.
Question 92 of 100
Where run across the top of floor joists, or within ________ of the floor or floor joists across the face of rafters or studding, the cable shall be protected by guard strips that are at least as high as the cable.
Question 93 of 100
The radius of the curve of the inner edge of any bend in smooth MC cable shall not be less than _________ the external diameter of the metallic sheath for cables less than 3/4″ in external diameter.
Question 94 of 100
Power to the utilization equipment shall not be supplied until _______________.
Question 95 of 100
All non-current-carrying metal parts of equipment and raceways that contain or support service conductors shall be _______________.
Question 96 of 100
Overhead spans of open conductors not over 1000V shall have a clearance of not less than _______________ over public streets.
Question 97 of 100
Where _______________ branch circuits supply devices on the same yoke, a means to simultaneously disconnect the ungrounded supply conductors shall be provided.
Question 98 of 100
All 15- and 20A, 125- and 250V nonlocking-type receptacles in corridors of dental offices shall be __________.
Question 99 of 100
Where cord and plug connection is provided to office lighting accessories, it shall comply with all of the following except:
Question 100 of 100
Where dimmers are installed in ungrounded conductors, each dimmer shall have overcurrent protection not greater than _______________of the dimmer rating and shall be disconnected from all ungrounded conductors when the master or individual switch or circuit breaker supplying such dimmer is in the open position.
