Electric wirings and Materials

Question 1

electrical conductors that are 8mm^2 - 18mm^2 or smaller

Answer 1

Wires

Question 2

Larger than wires. Used for small and big industries, distribution lines, transmission lines

Answer 2

Cables

Question 3

How many amperes can 3/0 gauge produce

Answer 3

200 amps

Question 4

1/0 gauge =

Answer 4

150 amps

Question 5

3 gauge =

Answer 5

100 amps

Question 6

6 gauge

Answer 6

55 amps

Question 7

8 gauge

Answer 7

40 amps

Question 8

10 gauge =

Answer 8

30 amps

Question 9

12 gauge

Answer 9

20 amps

Question 10

14 gauge

Answer 10

15 amps

Question 11

Wire color for positive (dc)

Answer 11

Red

Question 12

Wire color for negative (dc)

Answer 12

black

Question 13

Wire color for ground wire (dc)

Answer 13

white / grey

Question 14

black wires in ac indicates

Answer 14

hot wire

Question 15

red wires in ac indicates

Answer 15

220-volt installation

Question 16

blue and yellow wires in ac indicates

Answer 16

blue - travellers for three or four way switches

yellow - switch legs for outlets fans / lights

Question 17

white or grey wires in ac indicates

Answer 17

Neutral conductors which provides return path for current

Question 18

Green, green with a rellow strip or bare copper

Answer 18

used as ground wires that keeps appliances and home safe from electrical fires

Question 19

Most common types of wire

Answer 19

THHN, THWN, THW, XHHN

Question 20

T Means

Answer 20

Thermoplastic insulation, fire resistant

Question 21

H means

Answer 21

Heat resistant (167F)

Question 22

HH highly heat

Answer 22

(194F)

Question 23

W means

Answer 23

Wet” for damp and wet location

Question 24

X means

Answer 24

Insulation made of synthetic polymer

Question 25

N means

Answer 25

Nylon-coated

Question 26

Suplex stranded for temporary wire installation chords

Answer 26

Flat wire

Question 27

can be made of metal and non metal

Answer 27

Conduits or pipes

Question 28

Heavi - duty galvanized steel tubing that is installed with thread fittings

Answer 28

Rigid metal conduit

Question 29

A thinner, lighterweight version of rigid metal conduit. It is more common in construction

Answer 29

Intermediate metal conduit

Question 30

Mae of galvanized steel but can also be aluminum. It can also be called thin wall conduit. Can be bent with simple tool

Answer 30

Electrical metallic tubing

Question 31

A flexible corrugated plastic tubing that is moisture- resistant and flame retardant

Answer 31

Electrical non metallic tubing

Question 32

Sunlight resistant and are used Exposed, encased in concrete, concealed in walls and direct burial

Answer 32

Rigid pvc conduit

Question 33

A raceway that helps to porect wires and cables from heat, humidity, corrosion , water intrusion and general pysical threats

Answer 33

Surface raceways

Question 34

Most sections and fittings are completely open on one side so wires and cables can be laid in along an entire wireway

Answer 34

Wire raceway

Question 35

It is installed on or under the floor

Answer 35

Floor raceway

Question 36

connectors and fittings used to connect one piece of conduit to another

Answer 36

Conduit fittings

Question 37

Electrical materials used to hold and anchor electrical conduits in proper position

Answer 37

Clamps

Question 38

Used to attatched metallic or non-metallic conduit to the junction or utility boxes

Answer 38

Connector

Question 39

A circuit protective device with feasible element that blows and cut the current

Answer 39

Fuse

Question 40

Low cost electrical safety device that is used to protect electrical circuits and appliances.

Answer 40

Cartridge fuses

Question 41

An electromechanical device that performs the same protective function

Answer 41

Circuit Breaker

Question 42

howses all circuit breaker that connect with specific areas of house

Answer 42

Panel box

Question 43

A device that acts as a convenient source of electrical energy for current consuming appliances

Answer 43

Convenience outlet

Question 44

Type of convenience outlet that can be portable

Answer 44

Surface type

Question 45

Type of convenience outlet that is placed on the wall

Answer 45

Flush type

Question 46

Devices that open or close that circuitry in electric circuit

Answer 46

Switches

Question 47

Two gang switches

Answer 47

Surface type

Question 48

Three gang switches

Answer 48

Flush type

Question 49

Device used to hold the light bulb

Answer 49

Lamp Holders

Question 50

Octagonal shaped electrical material where the connections or joints of wires are being done.

Answer 50

Junction box

Question 51

A rectangular shaped metallic or plastic material in which flush type convenience outlet and switch are attached

Answer 51

Utility box

Question 52

A metal box that is installed in an accessible place in a run of conduit to facilitate the pulling in of wires

Answer 52

Pull box

Question 53

A device inserted into a convenience outlet to conduct electric current

Answer 53

Male plugs

Question 54

Used for wire protection and as electrical insulation to prevent people from getting electric shock

Answer 54

Mica Tube

Question 55

Connectors that terminate a single wire and connect it to a circuit or other system

Answer 55

Terminal Block

Question 56

Also known as wire nuts, wire connectors, cone connectors, or thimble connectors. It is a type of electrical connector that used to fasten 2 or more low voltage

Answer 56

Twist -on wire connector

Question 57

It is a shrinkable plastic tube used to insulate wires, providing abrasion resistance and environmental protection for stranded and solid wire connection, conductors an terminals

Answer 57

Heat Shrink Tubing