ELECTRICAL SYSTEMS

Question 1

A continuous loop. It is the complete path traversed by an electric current which collectively defines an entire house wiring installation.

Answer 1

Electrical Circuit

Question 2

(metal conduit) and the weatherhead create the entry point for electricity into your home.

Answer 2

Service Mast

Question 3

measures the amount of electricity consumed.

Answer 3

Meter

Question 4

in the form of a fuse box or breaker box, distributes power to individual circuits.

Answer 4

Main Service Panel

Question 5

According to the National Electric Code, all wire splices and connections must be contained in a covered plastic or metal electrical box

Answer 5

Electrical Boxes enclose wire connections

Question 6

connects the electrical system to the earth through a metal grounding rod driven to the house.

Answer 6

Grounding Wire

Question 7

attach directly to a household electrical system. They are usually controlled with wall switches.

Answer 7

Light Fixtures

Question 8

controls electricity passing through hot circuit wires.

Answer 8

Switches

Question 9

provide plug-in access to electricity

Answer 9

Receptacle, sometimes called Outlets

Question 10

most typical receptacle in wiring systems installed after 1965

Answer 10

120-volt, 15 amp receptacle

Question 11

defined as that part of an electric circuit extending beyond the last circuit breaker or fuse.

Answer 11

Branch Circuit

Question 12

Current enters a circuit loop on ____

Answer 12

hot wires

Question 13

current returns along ____

Answer 13

neutral wires

Question 14

hot wires are color

Answer 14

black or red

Question 15

neutral wires are color

Answer 15

white or light gray

Question 16

conducts current in the event of a ground fault and helps reduce the chancec of sever electrical shock

Answer 16

grounding wire

Question 17

If a circuit carries too much current, it can

Answer 17

overload

Question 18

protects each circuit in case of overloads.

Answer 18

fuse or a circuit breaker

Question 19

connects the home’s electrical system to the earth.

Answer 19

grounding

Question 20

the most common grounding electrode is a buried

Answer 20

copper-coated steel rod

Question 21

other grounding electrodes includes reinforcing steel in the footing called

Answer 21

ufer ground

Question 22

the portion of the supply conductors which entends from the street main duct to the switchboard of the building supply which comprises the conductor and equipment for delivering energy from the electricity supply system to the wiring system of the premises served.

Answer 22

Service Entrance

Question 23

measures the amount of the electtrical consumption in a building

Answer 23

Electric Meter

Question 24

this refers to all circuit conductors between the service equipment/entrance and the final branch circuit overcurrent device.

Answer 24

Feeder

Question 25

useful for installing cables in finished wall cavities and for pulling wires through conduit

Answer 25

Fish Tape

Question 26

to keep frequently used tools within easy reach.

Answer 26

Tool belt

Question 27

in a variety of colors are used for marking wires and for attaching cables to a fish tape

Answer 27

Electrical tape

Question 28

should be the primary concern of anyone working with electricity.

Answer 28

Safety

Question 29

Underwriters Laboratories

Answer 29

UL