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Residential Wiring > Test 1 Review > Flashcards

Test 1 Review Flashcards

1
Q

What is overcurrent?

A

Too much current

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2
Q

3 types of overcurrent

A

Short circuit, overload, and ground fault

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3
Q

What does overload mean?

A

Too much current in a circuit

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4
Q

What does short circuit mean?

A

A shorter unintended pathway for current

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5
Q

What does ground fault mean?

A

When electricity strays to an unintended pathway in the ground

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6
Q

What is a red/black wire?

A

Hot/Ungrounded

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7
Q

What is a white wire?

A

Neutral/Gorunded

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8
Q

What is a bare/green wire?

A

Grounding/Ground

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9
Q

What does the ungrounding (red/black) conductor do?

A

Supply voltage and carry current

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10
Q

What does the grounded (white) conductor do?

A

Allows current to return to its source

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11
Q

What does the grounding (green/bare) conductor do?

A

Grounds and bonds the system

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12
Q

What does the term grounding mean?

A

Connects electricity back to earth

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13
Q

What does the term bonding mean?

A

Connects the non-current-carrying parts of electrical equipment to the service equipment

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14
Q

What are fish tapes used for?

A

Pulling a conductor through a raceway

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15
Q

Most common type of ladder?

A

Stepladder

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16
Q

What is the point of extension ladders?

A

Allows you to get higher up

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17
Q

Do you have to tie extension ladders down?

A

Yes

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18
Q

What is the ratio that you’re supposed to have extension ladders at?

A

4:1

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19
Q

What are ladders typically made of?

A

Fiberglass

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20
Q

What are hydraulic knock out sets used for?

A

knock out big holes in boxes

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21
Q

What is a steel stud punch used for?

A

Punching holes in steel studs

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22
Q

What do we use a pie knife for?

A

Cutting large cables

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23
Q

What is an SDS hammer drill used for?

A

Drilling holes in tile/concrete

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24
Q

1/2” drill vs hammer drill

A

Reg. hammer drill is longer than reg. drill

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25
Q

Masonary bits

A

Dull tip, don’t have indents

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26
Q

Core drill

A

Cuts clean and large holes in concrete

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27
Q

Angle drill

A

Allows you to get into small spots/angles

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28
Q

Hole hog

A

Puts holes in wood (lots of torque)

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29
Q

Long tom

A

Allows you to drill holes in wood without having to use ladder

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30
Q

Keyed chuck

A

Used on high torque drills

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31
Q

Keyless chuck

A

Used on less torque drills

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32
Q

Auger bits

A

Put holes in wood (most common)

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33
Q

Spade bit

A

Cut wood

34
Q

Chipper bits

A

Put larger holes in wood

35
Q

Hole Saw

A

Puts holes in materials (wood, plastic, steel)

36
Q

High speed drill bits

A

Sharp tip. Used on wood, metal, plastic

37
Q

Unibit

A

Enlarges holes

38
Q

Magnetic bit holders

A

Allows the screw to stay in place with no one holding it

39
Q

what does a portaband do?

A

Cuts steel

40
Q

What is sawsall?

A

used to cut wood studs

41
Q
A
42
Q

arc flash/blast?

A

caused by short circuits/ground faults

43
Q

how hot do arc blasts get?

A

hotter than sun

44
Q

ppe on jobsites

A

hardhat, boots, vest, safety glasses, gloves

45
Q

what is overcurrent protection device?

A

breaker and a fuse

46
Q

mark metalic boxes?

A

to the center

47
Q

mark nonmetalic boxes?

A

to the top

48
Q

nm code artice?

A

334

49
Q

hole to cut if you want a 1/2” hole?

A

7/8” hole

50
Q

hole to cut if you want a 3/4” hole?

A

1 1/8” hole

51
Q

3 types of conductors

A

aluminum, copper, copper-clad aluminum

52
Q

whats a feeder cable?

A

starts on one overcurrent device and ends on another overcurrent device

53
Q

what is a branch circuit?

A

starts on an overcurrent device and goes out to the devices in our homes

54
Q

purpose of mudring?

A

when connecting metal box to wood stud

55
Q

vapor box use

A

use on exterior/attic walls to prevent condensation

56
Q

gfci protects?

A

shock and electrocutions

57
Q

afci protects?

A

fires

58
Q

how to strengthen concrete?

A

rebar

59
Q

lowest point of a house?

A

footing

60
Q

what beam dont you drill into

A

lvl beam

61
Q

sheet rock on wall thickness?

A

1/2”

62
Q

sheet rock on celing thickness?

A

5/8”

63
Q

size of device screws?

A

6 32

64
Q

size of light screws?

A

8 32

65
Q

point of lvl beams?

A

transfer weight onto load bearing beams

66
Q

in a recepticle, what screw does the white (neutral) wire go to?

A

silver

67
Q

in a recepticle, what screw does the black (hot) wire go to?

A

brass

68
Q

in a recepticle, what screw does the bare (ground) wire go to?

A

green

69
Q

in a recepticle, what is the connecting tab?

A

connects top and bottom recepticle

70
Q

backwiring outlets?

A

stab into back of outlet

71
Q

side wire outlets?

A

connect to screws

72
Q

stab-in outlets?

A

stab into side

73
Q

only way stranded wire is approved in an outlet?

A

backwiring

74
Q

2 listing companies?

A

UL and CSA

75
Q

who enforces nec requirements?

A

electrical inspector

76
Q

what do testing labs do?

A

List products (DONT APPROVE)

77
Q

what federal organization dictates safety?

A

OSHA

78
Q

what to do when working on electrical circuits?

A

lock out, tag out

79
Q

NFPA standard that covers safety?

A

Document 70e

80
Q

2 responsibilities of osha

A

provide ppe and train employees

81
Q

2 responsibilities of employee

A

use ppe and follow safety rules

82
Q

what does aff stand for?

A

above finish floor

Residential Wiring (1 decks)

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