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C-10 > rough wiring > Flashcards

rough wiring Flashcards

1
Q

What is the minimum clearance required around electrical panelboards for safety?

A

36 inches (3 feet) of clear space in front of the panel.

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2
Q

Which type of wiring method is typically used in residential construction for rough wiring?

A

Non-metallic sheathed cable (Type NM or Romex).

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3
Q

What is the purpose of a junction box in rough wiring?

A

To enclose and protect wire connections and splices.

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4
Q

What is the maximum number of 12 AWG wires that can be placed in a standard 4-inch square electrical box without a device?

A

Nine wires.

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5
Q

What is the standard height for electrical outlets above the finished floor in residential rough wiring?

A

12 to 18 inches.

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6
Q

What tool is commonly used to strip insulation from electrical wires during rough wiring?

A

Wire stripper.

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7
Q

What does NEC stand for and why is it important in rough wiring?

A

National Electrical Code; it sets the standards for safe electrical installations.

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8
Q

How should electrical cables be secured within a wall cavity during rough wiring?

A

Cables should be stapled or secured within 12 inches of a box and at intervals not exceeding 4.5 feet.

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9
Q

What is the purpose of using a fish tape in rough wiring?

A

To pull wires through conduits or wall cavities.

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10
Q

When rough wiring an attic, how should cables be run to ensure they are protected from physical damage?

A

Cables should be run along the side of rafters or secured to avoid walking paths.

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11
Q

What is the minimum size grounding electrode conductor required for a 200-amp service?

A

4 AWG copper.

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12
Q

What is the purpose of a pigtail in rough wiring?

A

To connect multiple wires to a single terminal screw or wire nut.

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13
Q

How are wires grouped together in a main service panel to ensure neatness and organization?

A

By using wire ties or clamps to bundle similar circuits together.

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14
Q

What is a staple’s role in rough wiring?

A

To secure cables to framing members.

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15
Q

How far should electrical cables be kept from the edge of framing members to prevent damage from nails or screws?

A

At least 1.25 inches.

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16
Q

What is the purpose of a rough-in inspection by an electrical inspector?

A

To ensure that all wiring is installed correctly and meets code requirements before walls are closed up.

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17
Q

What color is typically used for hot wires in rough wiring?

A

Black or red.

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18
Q

What is the purpose of using electrical tape during rough wiring?

A

To insulate wire connections and provide additional protection.

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19
Q

How should cables be routed through studs in a wall to maintain proper spacing and avoid potential hazards?

A

Cables should be run through drilled holes in the center of studs.

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20
Q

What is the recommended method for connecting a new electrical circuit to an existing breaker panel?

A

Turn off the main power, install the new circuit breaker, and connect the wires following proper safety protocols.

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21
Q

What is the minimum wire size required for a 15-amp circuit?

A

14 AWG

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22
Q

How far should electrical outlets be spaced apart in a residential setting?

A

No more than 12 feet apart

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23
Q

What is the purpose of a grounding rod in an electrical system?

A

To provide a path to ground for electrical currents in the event of a fault

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24
Q

What is the NEC’s requirement for tamper-resistant receptacles in new residential construction?

A

All 125-volt, 15- and 20-ampere receptacles must be tamper-resistant

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25
Q

When drilling holes for wiring through wooden studs, what is the recommended diameter for the holes?

A

Typically, holes should not exceed 40% of the stud’s width

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26
Q

What is the standard color for neutral wires in rough wiring?

A

White or gray

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27
Q

How should unused openings in electrical boxes be sealed?

A

With knockout seals or plugs

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28
Q

What type of conduit is commonly used for outdoor rough wiring?

A

PVC conduit or rigid metal conduit (RMC)

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29
Q

What is the purpose of a circuit breaker in an electrical system?

A

To protect the circuit from overcurrent and prevent electrical fires

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30
Q

How should cables be protected when running through metal framing members?

A

Using bushings, grommets, or conduit

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31
Q

What is the minimum depth for burying direct-burial cable in a residential yard?

A

24 inches

32
Q

What is the primary purpose of a load center in an electrical system?

A

To distribute electrical power to various circuits within the building

33
Q

What is the typical height for mounting wall switches in a residential home?

A

48 inches from the floor

34
Q

What type of wire is typically used for grounding purposes?

A

Bare copper wire or green-insulated wire

35
Q

How should splices be made in a rough wiring setup?

A

Using wire nuts or other approved connectors

36
Q

What is the NEC requirement for securing cables within an electrical box?

A

Cables must be secured within 12 inches of the box

37
Q

What is a common method for routing cables through wall studs?

A

Drilling holes through the center of the studs

38
Q

What is the function of a wire nut in electrical wiring?

A

To securely connect and insulate two or more electrical wires

39
Q

What type of cable is often used for running power to outbuildings or detached garages?

A

Underground feeder (UF) cable

40
Q

What is the purpose of a voltage tester in rough wiring?

A

To check for the presence of voltage in electrical circuits

41
Q

How should cables be secured when running vertically in a wall cavity?

A

Using cable staples or clips at intervals not exceeding 4.5 feet

42
Q

What is the standard wire gauge for residential lighting circuits?

A

14 AWG

43
Q

What is the purpose of a grounding bus bar in an electrical panel?

A

To provide a common point for grounding connections

44
Q

How should cables be protected when running through brick or concrete walls?

A

By using conduit or other protective measures

45
Q

What is the NEC requirement for the separation of low-voltage and high-voltage cables?

A

They must be separated by at least 2 inches or run in separate conduits

46
Q

What tool is commonly used to cut metal conduit?

A

A hacksaw or a conduit cutter

47
Q

How should cables be identified in a multi-wire branch circuit?

A

By using colored or labeled tape to mark the neutral conductor

48
Q

What is the purpose of an electrical subpanel?

A

To distribute power to a specific area or set of circuits within a building

49
Q

How are cables protected when running under a concrete slab?

A

By placing them in conduit

50
Q

What is the minimum required bending radius for NM cable?

A

Five times the cable diameter

51
Q

How should cables be routed through a floor opening?

A

Protected with a conduit sleeve or bushing

52
Q

What type of outlet is required in bathrooms according to the NEC?

A

Ground Fault Circuit Interrupter (GFCI) outlet

53
Q

How are cable sheaths stripped for connection?

A

Using a cable stripper or utility knife, careful not to damage the conductors inside

54
Q

What is the function of a breaker panel’s main breaker?

A

To shut off power to the entire panel

55
Q

What is the NEC’s requirement for outdoor receptacles?

A

They must be weatherproof and equipped with a weather-resistant cover

56
Q

How are wires labeled in an electrical panel for identification?

A

Using wire labels, tags, or a marker to indicate circuit number and function

57
Q

What is the maximum distance that a cable can be unsupported in an attic?

A

4.5 feet

58
Q

What is the purpose of a ground-fault circuit interrupter (GFCI)?

A

To protect against electrical shock by quickly disconnecting power in the event of a ground fault

59
Q

How should cables be routed when passing through fire-rated walls?

A

Using fire-rated sleeves or sealing methods to maintain the wall’s fire resistance

60
Q

What is the standard color for wires used for travelers in a three-way switch configuration?

A

Usually red or black, but colors may vary

61
Q

How should unused conductors in a cable be handled?

A

They should be capped with wire nuts or insulated and secured

62
Q

What is the typical spacing for securing cables to framing members?

A

Every 4.5 feet and within 12 inches of every box or fitting

63
Q

What type of cable is used for telephone wiring in a residential setup?

A

Category 5e (Cat5e) or Category 6 (Cat6) cable

64
Q

How should cables be handled when running parallel to framing members?

A

They should be secured with staples or clips to prevent movement

65
Q

What is the primary function of a circuit breaker?

A

To protect electrical circuits by automatically opening in the event of an overload or short circuit

66
Q

How should cables be installed in a crawl space to avoid damage?

A

Supported on running boards or secured to the structure

67
Q

What is the purpose of using a conduit bender?

A

To make precise bends in conduit without damaging it

68
Q

How are cables labeled for identification in a large project?

A

Using wire markers, labels, or tags that correspond to a labeling scheme

69
Q

What is the standard height for mounting a ceiling light fixture box?

A

Typically, 7 to 8 feet from the floor, but may vary based on fixture design

70
Q

What type of wire is typically used for lighting fixtures in rough wiring?

A

14 AWG or 12 AWG depending on the circuit requirements

71
Q

How should cables be routed through existing walls?

A

Using fishing tools or rods to pull cables through wall cavities

72
Q

What is the recommended method for protecting cables when running through metal framing?

A

Using bushings, grommets, or conduit

73
Q

What is the primary purpose of an electrical service entrance?

A

To connect the utility company’s supply lines to the building’s electrical system

74
Q

How is a ground wire connected in an electrical box?

A

It is secured to a grounding screw or clip in the box

75
Q

What type of receptacle is required for outdoor locations?

A

Weather-resistant GFCI receptacles

C-10 (2 decks)

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