Question 1

What is wall washing?

Accepted Answer

The term wall washing is used when luminaires are installed in a row, parallel to the wall that is to be "washed" with light.

Question 2

Electric baseboard heaters may not be permitted to be installed ____________________ a receptacle outlet.

Accepted Answer

below
beneath
under
underneath

Question 3

Explain why the required minimum clearances for fluorescent fixtures installed in closets are smaller than those for incandescent fixtures.

Accepted Answer

Incandescent fixtures develop higher surface temperatures than fluorescent fixtures and therefore represent a greater fire danger in closets filled with flammable goods.

Question 4

A(n) ____________________ is used only to ground the metal box and must never be used as a current-carrying conductor.

Accepted Answer

equipment

Question 5

Calculate the volt-amperes and watts of a 120-volt, 10-ampere motor at 50 percent power factor.

Accepted Answer

V × A = 120 × 10 = 1

Question 6

An outside weatherproof outlet is required to have ____________________ protection.

Accepted Answer

ground-fau

Question 7

The NEC allows what maximum number of receptacle outlets to be connected on a 120-volt residential lighting or small-appliance branch circuit?

Accepted Answer

A)  eight 
B)  ten 
C)  thirteen 
D)  unlimited 
A)  eight 
B)  ten 
C)  thirteen 
D)  unlimited

Question 8

Explain why pigtails used to connect receptacles to branch-circuit wiring need not be counted when determining the correct outlet box size.

Accepted Answer

NEC 314.16(B)(1) states that a

Question 9

NEC 210.11(B) requires that load be evenly proportioned among the different circuits in a panelboard. This is normally performed at the load center panelboard by connecting branch-circuit wiring so that the connected load on the two ____________________ is as equal as possible.

Accepted Answer

The answer of NEC 210.11(B) requires that load be evenly...

Question 10

Which switch type is rarely used in residential wiring?

Accepted Answer

A)  single-pole 
B)  double-pole 
C)  three-way 
D)  four-way 
A)  single-pole 
B)  double-pole 
C)  three-way 
D)  four-way

Question 11

How many lighting outlets are permitted on one branch circuit?

Accepted Answer

A)  10 
B)  12 
C)  15 
D)  no limit 
A)  10 
B)  12 
C)  15 
D)  no limit

Question 12

Residential wiring plans generally show lighting and receptacle outlet locations but not circuits. The electrician should design the installation with which of the following in mind?

Accepted Answer

A)  economy - minimizing the number and length of circuits 
B)  convenience for the homeowner or other user 
C)  National Electrical Code requirements 
D)  all of these 
A)  economy - minimizing the number and length of circuits 
B)  convenience for the homeowner or other user 
C)  National Electrical Code requirements 
D)  all of these

Question 13

What kind of receptacle outlet has a top portion that is "hot" at all times and a bottom portion that is controlled by the wall switch?

Accepted Answer

This is a split-wire

Question 14

To be effective, accent lighting should be at least ____ times that of the surrounding general lighting.

Accepted Answer

A)  two 
B)  three 
C)  four 
D)  five 
A)  two 
B)  three 
C)  four 
D)  five

Question 15

What is the NEC definition of a clothes closet?

Accepted Answer

A clothes closet is defined by

Question 16

What Code section provides very specific rules for the location and types of luminaires permitted to be installed in clothes closets?

Accepted Answer

NEC 410.16

Question 17

Which rule of thumb can be followed when planning branch circuits for dwelling units?

Accepted Answer

A)  one 20-ampere lighting circuit for every 200 square feet 
B)  one 15-ampere lighting circuit for every 1000 square feet 
C)  load circuits to no more than 50% of their rating 
D)  load circuits to no more than 80% of their rating 
A)  one 20-ampere lighting circuit for every 200 square feet 
B)  one 15-ampere lighting circuit for every 1000 square feet 
C)  load circuits to no more than 50% of their rating 
D)  load circuits to no more than 80% of their rating

Question 18

When using nonmetallic boxes, the equipment grounding conductor in nonmetallic-sheathed cable is connected to the ____-shaped equipment grounding screw found on all switches and receptacles.

Accepted Answer

A)  white square 
B)  orange hexagon 
C)  yellow rectangle 
D)  green hexagon 
A)  white square 
B)  orange hexagon 
C)  yellow rectangle 
D)  green hexagon

Question 19

Many electricians wire the lights and receptacles in a room on different circuits because this ____.

Accepted Answer

A)  is required by the NEC 
B)  is required by building codes 
C)  offers the advantage that all power in a room will not go out if the overcurrent protective device trips 
D)  simplifies grounding 
A)  is required by the NEC 
B)  is required by building codes 
C)  offers the advantage that all power in a room will not go out if the overcurrent protective device trips 
D)  simplifies grounding

Question 20

Receptacles installed on 15- and 20-ampere branch circuits must be of the ____ type.

Accepted Answer

A)  duplex 
B)  grounding 
C)  ground-fault protected 
D)  arc-fault protected 
A)  duplex 
B)  grounding 
C)  ground-fault protected 
D)  arc-fault protected

Exam 8: Lighting Branch Circuit for the Front Bedroom

What is wall washing?

Electric baseboard heaters may not be permitted to be installed ____________________ a receptacle outlet.

Explain why the required minimum clearances for fluorescent fixtures installed in closets are smaller than those for incandescent fixtures.

A(n) ____________________ is used only to ground the metal box and must never be used as a current-carrying conductor.

Calculate the volt-amperes and watts of a 120-volt, 10-ampere motor at 50 percent power factor.

An outside weatherproof outlet is required to have ____________________ protection.

The NEC allows what maximum number of receptacle outlets to be connected on a 120-volt residential lighting or small-appliance branch circuit?

Explain why pigtails used to connect receptacles to branch-circuit wiring need not be counted when determining the correct outlet box size.

NEC 210.11(B) requires that load be evenly proportioned among the different circuits in a panelboard. This is normally performed at the load center panelboard by connecting branch-circuit wiring so that the connected load on the two ____________________ is as equal as possible.

Which switch type is rarely used in residential wiring?

How many lighting outlets are permitted on one branch circuit?

Residential wiring plans generally show lighting and receptacle outlet locations but not circuits. The electrician should design the installation with which of the following in mind?

What kind of receptacle outlet has a top portion that is "hot" at all times and a bottom portion that is controlled by the wall switch?

To be effective, accent lighting should be at least ____ times that of the surrounding general lighting.

What is the NEC definition of a clothes closet?

What Code section provides very specific rules for the location and types of luminaires permitted to be installed in clothes closets?

Which rule of thumb can be followed when planning branch circuits for dwelling units?

When using nonmetallic boxes, the equipment grounding conductor in nonmetallic-sheathed cable is connected to the ____-shaped equipment grounding screw found on all switches and receptacles.

Many electricians wire the lights and receptacles in a room on different circuits because this ____.

Receptacles installed on 15- and 20-ampere branch circuits must be of the ____ type.

General Information for Electrical Installations

Electrical Symbols and Outlets

Determining the Required Number of Branch Circuits, Lighting Outlets, Receptacle Outlets

Conductor Sizes and Types, Wiring Methods, Wire Connections, Voltage Drop, Neutral Conductor Sizing for Services

Conductor Identification, Switch Control of Lighting Circuits, Bondinggrounding of Wiring Devices, Induction Heating

Ground-Fault Circuit Interrupters, Arc-Fault Circuit Interrupters, Surge Protective Devices, Immersion Detection Circuit Interrupters, and Appliance Leakage Current Interrupters

Luminaires, Ballasts, and Lamps

Lighting Branch Circuit for the Master Bedroom

Lighting Branch Circuitbathrooms, Hallway

Lighting Branch Circuit-Front Entry, Porch, Post-Light, Underground Wiring

Lighting Branch Circuit and Small-Appliance Circuits for the Kitchen

Lighting Branch Circuit for the Living Room

Lighting Branch Circuit for the Studybedroom

Dryer Outlet, Lighting and Receptacle Circuits for the Laundry, Powder Room, Rear Entry Hall, and Attic

Branch Circuits for the Garage and Outdoors

Recreation Room

Lighting Branch Circuit, Receptacle Circuits for Workshop

Special-Purpose Outletswater Pump, Water Heater

Special-Purpose Outlets for Ranges, Counter-Mounted Cooking Unit G, and Wall-Mounted Oven F

Special-Purpose Outletsfood Waste Disposer, Dishwasher

Special-Purpose Outlets for the Bathroom Ceiling Heatventlights K J, the Attic Fan L, and the Hydromassage Tub a

Special-Purpose Outletselectric Heating, Air Conditioning

Gas and Oil Central Heating Systems

Television, Telephone, and Low-Voltage Signal Systems

Smoke, Heat, and Carbon Monoxide Alarms, and Security Systems

Service-Entrance Equipment

Overcurrent Protectionfuses and Circuit Breakers

Service-Entrance Calculations

Swimming Pools, Spas, Hot Tubs, and Hydromassage Baths

Wiring for the Future: Home Automation Systems

Standby Power Systems

Residential Utility-Interactive Photovoltaic Systems

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