Chapter 9-14 Study Guide

A single receptacle on a 20-ampere individual branch circuit must be rated _________.

20 amps

A(n) ____ receptacle can be hidden behind a painting or photograph that you want to light up. A.) sunken B.) adjusted C.) hidden D.) clock hanger

Clock hanger

For hallways of _________ ft or more in length, it is required to have at least one receptacle outlet.

10

The NEC permits all bathroom receptacles to be on a single _____ branch circuit so long as it doesn't supply other loads. A.) 15-ampere B.) 20-ampere

20-ampere

Receptacle outlets must be installed in any wall space ____ or move in width. A.) 12 in B.) 18 in C.) 24 in D.) 36 in

24 in

The code section that prohibits running track lighting through walls or partitions is NEC _________.

410

According to NEC 406.9, receptacles ____ permitted to be installed in bathtub and shower spaces. A.) are B.) are not

Are not

Kitchen lighting ____ permitted to be supplied by the two 20-ampere small-appliance circuits required for the kitchen and dining room area. A.) is B.) is not

Is not

In addition to being fastened to the outlet box, the track lighting is generally fastened to the ceiling with ____. A.) toggle bolts only B.) screws only C.) nails only D.) toggle bolts and screws

Toggle bolts and screws

In a home office, the current draw is ______. A.) very low B.) average C.) very high

Very low

Hanging light fixtures must be kept at least _____feet horizontally and _______ feet vertically from the edge of the tub rim.

3,8

Some portable appliances use double insulation in place of grounding to provide shock protection to users. Double insulated appliances normally have ____ power cords and attachment plug caps. A.) three-wire B.) 16 AWG or larger C.) type SJT D.) 2-wire

2-wire

Ceiling-suspended paddle fans must not be located within a zone measured _____ horizontally and _____ vertically from the top of the bathtub or top of a shower stall threshold. A.) 2 ft; 6 ft B.) 2 ft; 8 ft C.) 3 ft; 6 ft D.) 3 ft; 8 ft

3 ft; 8 ft

Lighting track in residential installations are required to be supported twice if the track is not more than _____ ft, and shall have one additional support for each additional _____ ft of track.

4,4

Some inspectors consider the are within a _____ angle from a foot line or overhang to be a damp location. A.) 30 degrees B.) 45 degrees C.) 75 degrees D.) 90 degrees

45 degrees

Lighting track in residential installations are not permitted to be installed less than ____ above a finished floor unless it is protected against physical damage, or if the track is of the low-voltage type operating at less than 30 volts rms open-circuit voltage. A.) 5 ft B.) 6 ft C.) 6 ft 7 in D.) 7.5 ft

5 ft

The most common type of dimmer used in residential applications is rated ____ watts, 125VAC, 60 hertz. A.) 100 B.) 250 C.) 600 D.) 800

600

The outlet box or outlet box system of a ceiling-suspended fans must not support more than ____ pounds. A.) 25 B.) 35 C.) 50 D.) 70

70

Cord-and-plug-connected appliances are not permitted to exceed _____% of the branch-circuit rating. A.) 50 B.) 60 C.) 70 D.) 80

80

Some types of panels and similar building elements are considered wall space when figuring receptacle spacing, and others are not. Match the following. a. Receptacles required b. Receptacles not required Fixed glass panel Sliding glass panel fixed room divider

A, B, A

In a room that may be used as a home office, you could consider _____. A.) using 12 AWG for the home run or even for the entire branch circuit(s) B.) wiring in quadplex receptacles instead of duplex receptacles C.) using only plug-in strips that are listed by a qualified testing laboratory D.) all of the above

All of the above

Ceiling fan speed can be controlled by a ____. A.) pull chain on the fan B.) speed control mounted in a wall box C.) remote control similar to TV/VCR type D.) any of the above

Any of the above

Lighting track in residential installations ____ permitted to be installed in the zone 3 ft horizontally and 8 ft vertically from the top of a bathtub rim. A.) are B.) are not

Are not

Sliding glass panels ______ considered to be wall space, the same as any other interior or exterior door. A.) are B.) are not

Are not

As defined in Article 100, a bathroom is required to have a ____. A.) toilet B.) basin C.) shower D.) tub

Basin

A 125-volt, 15- and 20-ampere receptacle installed to serve a kitchen countertop is required to _____. A.) be supplied by at least two 20-ampere small appliance circuit B.) have GFCI protection for personnel C.) be installed within 24 inches of the sink D.) be supplied by at least two 20-ampere small appliance circuits and have GFCI protection for personnel

Be supplied by at least two 20-ampere small appliance circuits and have GFCI protection for personnel

When an individual branch circuit is run for the refrigerator, some inspectors require that a single receptacle be installed to "meet code". A single receptacle ensures that the receptacle will not supply other appliances, although this is highly unlikely because the receptacle is located _____ the refrigerator.

Behind

Most duplex receptacles can be changed into "split-wired" receptacles by ____. A.) adding an additional wire B.) splitting the wires C.) diverting a circuit D.) breaking off the small metal tab on the terminals

Breaking off the small metal tab on the terminals

What piece of kitchen equipment is permitted to be connected to the two 20-ampere small-appliances circuits required for the kitchen and dining room area? A.) lighting B.) exhaust fan C.) clock outlet D.) none of the above

Clock outlet

A partially protected area, such as an open porch, or under a roof or canopy, is a(n) _________ location.

Damp

NEC 410.10(D) _____ lighting track to be located within a zone measured 3 ft horizontally and 8 ft vertically from the top of a bathtub rim or top of a shower stall threshold. A.) permits B.) does not permits

Does not permits

Some ceiling fan/light units have one lamp socket, whereas others have ____ lamp sockets. A.) four or five B.) six C.) seven D.) eight to ten

Four or five

Because of the dangers associated with the open(grounded conductor), NEC 300.13(B) does not permit the continuity of the _____ conductor to depend on a receptacle. A.) ungrounded B.) grounded (neutral) C.) both a and b D.) none of the above

Grounded (neutral)

When using nonmetallic-sheathed cable or armored cable, never use the bare equipment grounding conductor as a(n) ________ conductor, and never use the grounded circuit conductor as an equipment grounding conductor.

Grounded circuit

A raised plaster cover (often called a plater ring or mud ring) is permitted to increase the maximum number of conductors permitted in an outlet box when it is ____. A.) listed as a box extension B.) by the same manufacturer as the box C.) marked with its cubic-inch volume D.) metallic and capable of being grounded

Marked with its cubic-inch volume

Although it adds cost, consider a(n) ___________ on both sides of the front door for easy plugging in of outdoor decorations.

Outdoor weatherproof receptacle

Which of the following is NOT a reason that ceiling fans must be specially supported? A.) weight B.) torque C.) safe grounding D.) vibration

Safe grounding

A popular use of __________ is to control one receptacle with a switch and leave one receptacle "hot" at all times.

Split wired receptacles

Countertop receptacles must be supplied by at least ____ -ampere small appliance branch circuits. A.) one 20 B.) two 20 C.) one 15 D.) two 15

Two 20

Transient voltage surge suppressors minimize the possibility of __________ damaging sensitive electronic equipment.

Voltage surges

Electronica dimmers for use only to control incandescent lamps are marked with a(n) _______ rating.

Wattage

The load for each small-appliance, branch circuit load is required to be calculated at ____. A.) 1,440 watts B.) 1,500 volt-amperes C.) 1,920 watts D.) 2,400 volt-amperes

1,500 volt-amperes

When installing a multiwire branch circuit, a means must be provided to simultaneously disconnect all of the hot conductors at the panel board where the circuit originates. This means it is normally a(n) ______ with fuses, a 2-pole circuit breaker, or two single pole circuit breakers with a listed ________.

2-pole switch, handle tie

A receptacle below a 4-way switch in the corner of a living room is required because the Code requires that a receptacle be installed in any wall space ____ in. or more in width. A.) 12 B.) 24 C.) 36 D.) 72

24

The suggested fan size for rooms up to 144 ft.² is ________ inches, and the suggested fan size for rooms up to 500 square feet is _________ inches.

42, 56

A doorjamb switch is usually mounted about _____ feet above the floor, on the inside of the 2x4 framing on the hinge side of the closet door. A.) 3 ft B.) 4 ft C.) 5 ft D.) 6 ft

6 ft

Match the following locations for mounting lighting fixtures with their code classification. a. Wet location b. Damp location House side wall Open front porch Receptacle on the bottom side of a foot overhang Pole-mounted light in a yard

A, B, B, A

GFCI protection can be provided for convenience receptacles serving kitchen countertop areas by ____. A.) GFCI circuit breakers B.) installing a GFCI-protected receptacle at each location C.) installing a single feed-through type GFCI receptacle to protect downstream receptacles D.) all of the above

All of the above

Portable lighting tracks must _____. A.) be longer than 8 ft B.) have a cord not less than 5 ft permanently attached to the track C.) have overcurrent protection (fuse or circuit breaker) built into the plug gap D.) all of the above

All of the above

When using nonmetallic boxes, the volume allowance is based on ______. A.) wiring devices B.) cable clamps C.) equipment grounding conductors D.) all of the above

All of the above

A bathroom is defined as "an area including a basin, with one or more of which items?" A.) toilet B.) tub C.) bidet D.) any of the above

Any of the above

The selection of outlet boxes and switch boxes is made by the electrician. These decisions are based on Code requirements, space allowances, good wiring practices, and _____. A.) homeowner's preferences B.) common sense C.) city building codes D.) cost

Common sense

With _____ products, it takes two failures to create a shock hazard to the user. A.) warranted B.) double insulated C.) American-made D.) insulated

Double insulated

During the winter, it is suggested that a paddle fan should _____. A.) push air down B.) draw air up C.) not be used D.) only be used on low

Draw air up

Which of the following is required in order to dim fluorescent fixtures? A.) fluorescent dimmer only B.) dimming ballasts only C.) oversized neutral in the branch-circuit D.) fluorescent dimmer and dimming ballasts

Fluorescent dimmer and dimming ballasts

Electronic dimmers use triacs to chop the AC sine wave, so some incandescent lamps might ______ because the lamp filament vibrates. A.) buzz B.) hum C.) pulsate D.) whine

Hum

Lighting track in residential installations are not permitted to be installed ___. A.) in damp or wet locations B.) concealed locations C.) through walls or partitions D.) in any of these locations

In any of these locations

Fan speed controllers have internal circuitry that is engineered specifically for use on inductive circuits. Do not use a standard _________ to control fan motors.

Incandescent lamp dimmer

The receptacle for a kitchen refrigerator is permitted to be supplied by a(n) _________ branch circuit.

Individual 15-ampere 20 ampere

NEC 422.16(B)(4) permits a range hood to be cord-and-plug connected. The receptacle would be installed _____ the range. A.) behind B.) inside the cabinetry above C.) no more than 6 inches from D.) to the left of

Inside the cabinetry above

When a luminaire is connected to the conductors, the outlet is referred to as a ______ outlet. A.) luminaire B.) receptacle C.) simple D.) lighting

Lighting

When installing a ceiling paddle fan, the outlet box must be _____. A.) listed and marked as acceptable for fan support B.) metallic C.) secured by four screws D.) all of the above

Listed and marked as acceptable for fan support

For track lighting installed in homes, it is not necessary to supply additional ______ for the purpose of branch circuit, feeder, or service-entrance calculations.

Loads

Lighting track in residential installations are not permitted to be cut to length in the field unless permitted by the ____. A.) builder B.) local building codes C.) homeowner D.) manufacturer

Manufacturer

Lighting fixtures intended for installation in wet locations must be _____. A.) double insulated B.) marked "Class W" C.) marked "Suitable for Wet Locations" D.) no more than 120W

Marked "Suitable for Wet Locations"

Recessed or surface-mounted luminaries and recessed exhaust fans _____ be located within the restricted zone near the bathtub. A.) may B.) may not

May

When designing a home office, you could consider roughing in more wall receptacles than the NEC _____. A.) maximum B.) recommends C.) minimum D.) builder recommend

Minimum

The NEC defines a kitchen as an area with a sink and ____ provisions for food preparation and cooking. A.) at least temporary B.) permanent C.) normal D.) stationary

Permanent

When someone decides to use a study/bedroom as a home office, _____. A.) several pieces of electronic equipment will need to be plugged in B.) the NEC requirements for lighting changes drastically C.) a special dimming ballast would be required D.) receptacle requirements will not change

Several pieces of electronic equipment will need to be plugged in

A light dimmer ______ be used as a speed control for a ceiling fan or other motor. A.) should B.) should not

Should not

Two popular types of electronic dimmers are ____. A.) slide and rotate B.) slide and push C.) push and cord D.) rotate and cord

Slide and rotate

The sound level rating used to define fan noise is expressed in ____. A.) sones B.) decibels C.) tenor D.) range

Sones

When replacing an existing luminaire (fixture) with a ceiling-suspended paddle fan, make sure that the existing outlet box is listed in marked as _______.

Suitable for fan support

And a home office, you will never have enough wall receptacles. Plug in strips of the ________ type are almost always needed.

Surge protection

The 125-volt, 20-ampere receptacles installed to serve kitchen countertops are required to have GFCI protection _____. A.) when they are within 6 ft of the sink B.) under all circumstances C.) unless provided with assured grounding conductor protection

Under all circumstances

A location exposed to the weather is a _____ location. A.) damp B.) wet C.) dry D.) none of the above

Wet

Install luminaires listed for _____ locations if they will be subject to shower spray. A.) damp B.) humid C.) dry D.) wet

Wet