Electrical

The minimum approved electrical trade size for EMT is ____ inches.

.5

A ____ rated receptacle outlet shall be installed at an accessible location for the servicing of equipment within a crawl space.

112-volt, dual-phase, 15- or 20-ampere

GFCI protection for personnel is required for every ____ receptacle located in the bathroom area.

125-volt, single-phase 15- and 20-ampere

A ____ receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning, and refrigeration equipment.

125-volt, single-phase, 15- or 20-ampere-rated

If the overprotection rating for an appliance is not marked and the appliance is rated over 13.3 amperes, the overcurrent protection shall not exceed ____% of the rated current.

150

Branch circuits in kitchens should be ____-ampere circuits.

20

Tap conductors from a 50-ampere branch circuit must have an ampacity of at least ____ and not less than the ampacity of the individual unit served.

20

____ in exterior walls are not counted as wall space.

Sliding panels

____ should not be connected with flexible cords.

Water Heaters

Cables entering or exiting conduit used for support or protection against physical damage require fittings on the conduit ends to prevent ____.

cable abrasion

Underfloor raceway dead ends must be ____.

closed

NEC® identifies ____ types of rigid PVC conduit.

five

A header is a transverse raceway ____.

for electric conductors, providing access to predetermined cells of a cellular metal floor

Cables running horizontally (or diagonally) are considered supported and secured when passing through a(n) ____.

framing member

The arrangement of grounding connections shall be such that the disconnection or removal of a device fed from the box will not interfere with the ____.

grounding continuity

Raceways installed within drop ceilings must ____.

have secure support provided by the support wires and associated fittings

Receptacles, unless listed as receptacle assemblies for countertop applications, shall not be installed ____ in countertops or similar work surfaces.

in a face-up position

The bathtub zone refers to an area in which ____.

no parts of cord-connected luminaires, and ceiling-suspended (paddle) fans are permitted

At least ____ inches of free conductor shall be left at each outlet, junction, and switch point.

6

A receptacle outlet installed for a specific appliance, such as laundry equipment, shall be installed within ____ of the intended location of the appliance.

6 ft

Outlet boxes or outlet box systems used as the sole support of a ceiling-suspended fan shall not support ceiling-suspended (paddle) fans that weigh more than ____ pounds.

70

If supplied by an individual branch circuit, the rating of a cord- and attachment plug-connected room air conditioner can be no more than ____ of the circuit's ampere rating.

80%

____ luminaire types are not permitted in a clothes closet.

Pendant luminaires or lampholders

____ receptacles are identified by the letters "TR."

Tamper-resistant

A detached garage with electrical power must have ____.

at least one wall switch-controlled lighting outlet

Bends must be made so that the conduit or tubing remains undamaged with its internal diameter ____.

basically undiminished

A widely accepted practice is to identify 3-phase ungrounded (hot) conductors as ____ in 208/120 volt, 4-wire, wye-connected systems.

black, red, and blue

Rigid metal conduit (RMC) is a threadable raceway of ____ designed for the physical protection and routing of conductors and cables.

circular cross section

Cover measurement commences at the top surface of any direct burial wiring method and ends at the ____ of the finished grade's top surface.

closest point

To find the minimum circuit ampacity, ____.

divide the wattage by the voltage to find amperage and multiply the amperage by 125%

Type AC cable shall have a(n) ____.

flexible metal tape armor

Liquidtight flexible metal conduit (LFMC) is a raceway of circular cross section having a(n) ____ over an inner flexible metal core.

outer liquidtight, nonmetallic, sunlight-resistant jacket

All cut ends of IMC and RMC must be ____.

reamed

Laundry receptacle outlet(s) must be fed from a ____ branch circuit.

20-ampere

All receptacles installed to serve kitchen countertop surfaces shall have _____.

GFCI protection

Required branch circuits include ____ circuits.

HVAC, appliance, and alarm system

____ in the ends of larger conduits (2 to 6 in.) can prevent conduit collapses or other deformities.

Installing PVC plugs

A multiconductor cable, optical fiber cable, or flexible cords of two or more conductors is treated as ____ for percentage conduit fill area calculations.

a single conductor

Surface nonmetallic raceways and their fittings must be designed so that sections can be mechanically coupled together and installed without subjecting the wires to ____.

abrasion

A(n) ____ or an accessible plug and receptacle can serve as the disconnecting means.

accessible separable connector

An outdoor receptacle, in a location protected from the weather or in other damp locations, requires ____ when the receptacle is covered.

an enclosure for the receptacle that is weatherproof

A clothes dryer outlet must have ____ and an equipment grounding conductor.

an insulated grounded (neutral) conductor

A branch circuit providing power to bathroom receptacles shall not provide power to ____.

any receptacle or lighting outside of bathrooms

A(n) ____ is permitted on a small-appliance branch circuit.

dedicated clock outlet

Raceway fill calculations are a prerequisite in ____ needed for particular circuits.

determining the size of raceway

A group of conductors that fit into one conduit may not fit into another type because the ____ of different types of conduit vary.

internal diameters

GFCI protection is required for receptacles installed to serve ____.

kitchen countertops

A single receptacle installed on a branch circuit with no other device or outlet shall have an ampere rating ____ of that circuit.

not less than the rating

One-family dwellings require at least _____ installed at the front and back of the dwelling.

one receptacle outlet

Splices and taps are permitted within surface metal raceway having a removable cover that ____.

remains accessible after installation

Laundry equipment receptacles ____.

shall not be counted as required garage receptacles

A disconnecting means is not required for appliances installed in a basement if ____.

the branch-circuit switch or circuit breaker is within 50 ft and can be seen while working on the appliance

____ determines the minimum number of receptacles in a given dwelling.

wall space

A ____ in a cable can be used as an ungrounded conductor when supplying power to a switch, but not as a return conductor from the switch to the outlet.

white conductor

A cable assembly's ____ conductor can be used as a switch loop (leg) in single-pole, three-way, and four-way switch installations, even though it is an ungrounded (hot) conductor.

white or gray

Generally, ungrounded (hot) conductors can be any color except ____.

white, gray, green, or, green with yellow stripe(s)

Ducts used to transport dust, loose stock, or flammable vapors shall not contain ____ of any type.

wiring systems

Outdoor luminaires and associated equipment ____.

can be supported by trees

To calculate the minimum number of 15-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

divide by 15 and round up to obtain the number of circuits

To calculate the minimum number of 20-ampere branch circuits required in a dwelling, you should multiply the dwelling square footage by 3 volt-amperes to obtain total volt-amperes, divide by 120 volts to obtain the total amperes, and finally, ____.

divide by 20 and round up to obtain the number of circuits

Article 100 defines raceway as a(n) ____designed expressly for holding wires, cables, or busbars.

enclosed channel of metallic (or nonmetallic) materials

Exposed runs of Type AC cable installed on the underside of joists must be supported at ____.

every joist

At least one wall switch-controlled lighting outlet is required to provide illumination on the ____.

exterior side of an outside entrance or exit with grade-level access

A general-purpose branch circuit may feed ____.

lights, receptacles, or both

Nonmetallic-sheathed cable passing through holes in metal framing must be protected by ____ covering all metal edges

listed bushings (or grommets)

Electrical blueprints (floor plans) ____ on a one-family dwelling.

may be optional