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d. multiwire branch circuits

The continuity of a grounded conductor shall not be dependent upon the device in ___. Select one: a. individual branch circuits b. multioutlet assemblies c. any branch circuit d. multiwire branch circuits e. branch circuits not having a grounded conductor

c. the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s)

The definition of a branch circuit is ___. Select one: a. the circuit conductors on the line side of the final overcurrent device protecting the circuit b. the circuit conductors between the service and the sub-panel c. the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s) d. the circuit conductors between the final overload device protecting the circuit and the outlets(s)

d. white

The identification of terminals to which a grounded conductor is to be connected shall be substantially ___ in color. Select one: a. copper b. green c. brass d. white

b. 50

The total rating of a plug-connected room air conditioner where lighting units or other appliances are also supplied shall not exceed ___ percent. Select one: a. 40 b. 50 c. 70 d. 80

c. both I and II

Unless identified for use in the operating environment, no conductors or equipment shall be located in ___ having a deteriorating effect on the conductors or equipment. I. damp or wet locations II. where exposed to gases, fumes, vapors, liquids, or other agents Select one: a. I only b. II only c. both I and II d. neither I nor II

b. be closed to afford protection

Unused openings in metal boxes, panels, and other enclosures shall ___. Select one: a. be open b. be closed to afford protection c. not be required to be closed if on the bottom of the enclosure d. not be required to be closed if the enclosure is in a dry location

c. overhead conductor spans

Vegetation such as trees shall not be used for support of ___. Select one: a. luminaires b. brackets or clamps c. overhead conductor spans d. any of these

a. 120 volts

What is the maximum allowable voltage between conductors on a branch circuit supplying lighting fixtures (luminaires) in a residence? Select one: a. 120 volts b. 250 volts c. 150 volts d. 240 volts

a. made with a pigtail to the silver terminal

When connections are made in the white wire to receptacles in a multiwire branch circuit, they are required to be ___. Select one: a. made with a pigtail to the silver terminal b. connected to the brass colored terminals c. connected to the silver terminals on the duplex d. none of these

b. II only

When determining the spacing of general-use receptacles in a dwelling, ___ on exterior walls are not considered wall space. I. fixed panels II. sliding panels Select one: a. I only b. II only c. both I & II d. neither I nor II

a. 24

Where connected to a 30-amp branch circuit supplying one receptacle, the receptacle shall have an ampere rating equal to 30 amps and a maximum load of ___ amps. Select one: a. 24 b. 12 c. 20 d. 16

c. 25 amperes

Which of the following is not a standard rating for a branch circuit supplying several loads? Select one: a. 20 amperes b. 50 amperes c. 25 amperes d. 15 amperes e. 30 amperes

c. 75

Which of the following is not a standard size fuse or inverse-time circuit-breaker? Select one: a. 110 b. 80 c. 75 d. 70 e. 45

c. Branch circuits

___ in a dwelling unit shall supply only loads within or associated with that dwelling unit. Select one: a. Ground-fault protection b. Service-entrance conductors c. Branch circuits d. none of these

d. Wooden

___ plugs driven into holes in masonry, concrete, plaster, or similar materials shall not be used. Select one: a. Metal b. Plastic c. Leather d. Wooden

c. 40 or 50

A 50-ampere rated single receptacle may be installed on a ___-ampere individual branch circuit. Select one: a. 60 b. 50 or 60 c. 40 or 50 d. 40 e. 50

d. 15-amp

A branch circuit served by 12 AWG THWN conductors is a ___ rated branch circuit when protected by a 15-amp breaker. Select one: a. 30-amp b. 25-amp c. 20-amp d. 15-amp

a. receptacle

A cord connector that is supported by a permanently installed cord pendant shall be considered a(n) ___ outlet. Select one: a. receptacle b. pendant c. plug d. lighting e. appliance

b. II or III only

A duplex receptacle with two circuits on the same yoke is permitted to have ___ as a means of disconnect. I. two single-pole circuit breakers without tie handles II. one double-pole circuit breaker III. two single-pole circuit breakers with tie handles Select one: a. I or II only b. II or III only c. I or II or III d. III only e. II only

d. 50

A luminaire shall be supported independently of the outlet box when it weighs more than ___ pounds unless the outlet box is listed and marked for the maximum weight to be supported. Select one: a. 35 b. 25 c. 6 d. 50

a. II & III only

A nongrounding-type receptacle has been replaced with a new grounding-type duplex receptacle. The 15-ampere circuit breaker feeding the circuit has been replaced with a 15-ampere GFCI breaker. The new receptacle must be marked "___." I. Two-Wire Circuit II. No Equipment Ground III. GFCI Protected Select one: a. II & III only b. I & II only c. III only d. II only e. I & III only

b. one outdoor receptacle at front and one at the back

A one-family dwelling unit that is at grade level shall have ___. Select one: a. one outdoor receptacle at the front b. one outdoor receptacle at front and one at the back c. one outdoor receptacle at the back d. two outdoor receptacles at the back

a. weatherproof

A receptacle installed outdoors in a location protected from the weather or in other damp locations shall have an enclosure for the receptacle that is ___ when the receptacle is covered. Select one: a. weatherproof b. rainproof c. weathertight d. raintight

b. The equipment shall be installed in accordance with the instructions.

According to the NEC®, which of the following statements is true about installing listed or labeled equipment? Select one: a. The equipment may be installed in whatever manner the contractor determines best. b. The equipment shall be installed in accordance with the instructions. c. The equipment only needs to be listed or labeled if it is installed in an industrial environment. d. The equipment may be subject to listed or labeled equipment if it is determined to be acceptable by the contractor.

b. equivalent to

All splices, joints, and free ends of conductors are required to be covered with an insulation ___ the conductor. Select one: a. as thick as b. equivalent to c. thicker than d. larger than

e. receptacle

An outlet where one or more receptacles are installed is called a(n) ___ outlet. Select one: a. dedicated b. isolated c. appliance d. lighting e. receptacle

b. 6

At least ___ inch(es) of free conductor, measured from the point in the box where it emerges from its raceway or cable sheath, shall be left at each outlet, junction, and switch point for splices or the connection of luminaires or devices. Select one: a. 8 b. 6 c. 3 1/ 2 d. 12 e. 3

c. 35

Ceiling fans that weigh ___ pounds or less are allowed to be directly mounted to a ceiling box without a marking indicating the maximum weight to be supported, provided the box is identified for the use of supporting ceiling-suspended fans. Select one: a. 6 b. 50 c. 35 d. 70

c. circular mils

Conductor sizes are given in AWG or ___. Select one: a. length b. numbers c. circular mils d. insulation

c. copper

Conductors shall be ___ unless otherwise provided in the Code. Select one: a. lead b. stranded c. copper d. aluminum

a. 10

Connection by means of wire-binding screws or studs and nuts having upturned lugs or equivalent shall be permitted for ___ AWG or smaller conductors. Select one: a. 10 b. 8 c. 6 d. none of these

a. at the line terminals of the equipment

Equipment intended to break current at fault levels shall have an interrupting rating at nominal circuit voltage sufficient for the current that is available ___. Select one: a. at the line terminals of the equipment b. at the output terminals of the power source c. both a and b d. neither a nor b

d. 18"

Floor boxes shall be considered to meet the requirements of the spacing of receptacles on walls if they are within ___ of the wall. Select one: a. 30" b. 20" c. 24" d. 18"

c. 10

For dwelling hallways of ___ feet or more in length, at least one receptacle outlet shall be required. Select one: a. 15 b. 12 c. 10 d. 8 e. 6

c. either I or II

Improper wiring or mishandling of multiwire branch circuits can cause ___. I. overloaded grounded conductors II. overvoltage of loads connected to the circuit Select one: a. I only b. II only c. either I or II d. neither I nor II

c. 2

In a dwelling unit, each wall space of ___ feet or wider requires a receptacle. Select one: a. 5 b. 3 c. 2 d. 4

d. 20

In a dwelling, a living room branch circuit with a 20-ampere rating can be loaded to a maximum of ___ amperes. Select one: a. 15 b. 16 c. 10 d. 20

c. both a and b

In existing buildings where the nonmetallic sheathed cable is concealed, listed interconnector devices of insulating material shall be permitted to be used without boxes ___. Select one: a. in exposed cable wiring b. for repair wiring c. both a and b d. neither a nor b

a. ungrounded

In general, switches shall be so wired that all switching is done in the ___ conductor. Select one: a. ungrounded b. grounded c. either a or b d. neither a nor b

b. 0.0

In inches, what is the maximum distance that a receptacle wall box can be set back from the finished surface of a 1/4-inch wood-paneled wall? Select one: a. .0625 b. 0.0 c. 0.25 d. 0.125 e. 0.1875

d. I & III only

In judging equipment, considerations such as the following shall be evaluated. I. mechanical strength II. cost III. arcing effects IV. guarantee Select one: a. I only b. I & II only c. II & IV only d. I & III only

c. American Wire Gage or circular mils

In the National Electrical Code, conductor sizes are expressed in ___. Select one: a. American Wire Gage and Brown and Sharpe b. Brown and Sharpe Gauge c. American Wire Gage or circular mils d. circular mils only

e. insulation

Luminaires shall be wired with conductors having ___ suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. Select one: a. shielding b. fittings c. protection d. covering e. insulation

c. 1/ 4"

Metal plugs or plates used with nonmetallic boxes shall be recessed ___. Select one: a. 3/ 8" b. 1/ 2" c. 1/ 4" d. 1/ 8"

b. 6

No point along the floor line in any useable wall space in a dwelling may be more than ___ feet from an outlet. Select one: a. 6 1/ 2 b. 6 c. 10 d. 12 e. 8

c. non-grounding

Non-grounding-type receptacles shall be permitted to be replaced with another ___ type receptacle. Select one: a. grounding b. weatherproof c. non-grounding

a. I only

One 15-ampere rated single receptacle may be installed on a ___-ampere individual branch circuit. I. 15 II. 20 Select one: a. I only b. II only c. either I or II d. neither I nor II

b. 1 1/ 2

Receptacle outlets in floors shall not be counted as part of the required number of receptacle outlets unless located within ___ feet of the wall. Select one: a. 4 b. 1 1/ 2 c. 6 d. 5 e. 2

d. I only

Receptacles installed for the attachment of portable cords shall be rated at not less than 15 amperes, 125 volts, or ___-amperes, 250 volts, and shall be of a type not suitable for use as lampholders. I. 15 II. 20 III. 30 Select one: a. II or III only b. II only c. I or III only d. I only e. I or II only

d. all of these

Small appliance circuits may supply receptacle outlets located in the ___ as well as the kitchen. Select one: a. breakfast room b. pantry c. dining room d. all of these

c. 20

Snap switches rated ___ amps or less directly connected to aluminum conductors shall be listed and marked for CO/ALR. Select one: a. 30 b. 10 c. 20 d. any ampere rating

b. joined mechanically

Soldered splices must be ___ so as to be electrically secure before soldering. Select one: a. tinned b. joined mechanically c. taped d. insulated

e. bathroom

Switch-controlled receptacles (in lieu of a lighting outlet) are permitted in all except which of the following? Select one: a. library b. dining room c. bedroom d. hallway e. bathroom

a. grounded conductor

A ___ is a system or circuit conductor that is intentionally grounded. Select one: a. grounded conductor b. grounding electrode conductor c. grounding conductor d. bonding jumper e. main bonding jumper

b. II only

One single receptacle with a 20-ampere rating may be installed on a ___-ampere individual branch circuit. I. 15 II. 20 Select one: a. I only b. II only c. either I or II d. neither I or II

a. for electric snow-melting or de-icing equipment

Outdoor receptacles at a dwelling unit are not required to be GFCI-protected if they are supplied from a dedicated branch circuit installed ___. Select one: a. for electric snow-melting or de-icing equipment b. at a second-floor level c. in a weatherproof box d. at least 61/2 ft. above grade level

c. both a and b

The NEC® requires GFCI ___ to be readily accessible. Select one: a. circuit breakers b. receptacles c. both a and b d. neither a nor b

d. A green-colored, hexagonal-headed or -shaped terminal screw

Which of the following methods is an acceptable method to identify the grounding pole on a grounding-type receptacle? Select one: a. An orange-colored, hexagonal-headed screw b. An orange dot c. A white-colored, round-headed screw d. A green-colored, hexagonal-headed or -shaped terminal screw

e. 5'-6"

Receptacles located higher than ___ above the floor are not counted in the required number of receptacles along the wall. Select one: a. 6'-6" b. 6'-0" c. 2'-0" d. 6'-7" e. 5'-6"