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ELX > R2 LT2 > Flashcards

R2 LT2 Flashcards

1
Q

Why do many electricians prefer not to use the push-in connection ports?

A

Less reliable and secure connection

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2
Q

What is the required distance between kitchen counter receptacles according to Figure 3?

A

Maximum 900 mm

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3
Q

How are non-current-carrying metal parts of a switch frame bonded if no bonding terminal is provided?

A

By means of attachment screws.

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4
Q

What may cause the terms of approval for electrical equipment to be broken?

A

Not installed according to manufacturer’s instructions

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5
Q

Where are rules for installing receptacles on rooftops covered?

A

Rule 26-710

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6
Q

Are there often changes made to locations of devices during construction?

A

Yes

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7
Q

What requirement does 26-724(f) set for hallway receptacles in dwelling units?

A

No point in the hallway more than 4.5m from a receptacle

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8
Q

What specific requirements does the CEC give for replacing old two-prong non-grounding receptacles with new three-prong grounding-type receptacles?

A

Very specific requirements.

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9
Q

What type of device boxes and cable may be used in a wood-frame structure for receptacles and switches?

A

Plastic boxes, non-metal sheathed cable

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10
Q

What does the CEC prohibit in the work surfaces of kitchen counters?

A

Receptacles facing upwards

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11
Q

Which rule in the CEC dictates the installation of three-way switches for stairwell lighting?

A

Rule 30-504

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12
Q

What type of protection must receptacles within 1.5m of sinks, bathtubs, and shower stalls have?

A

Class A GFCI

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13
Q

What type of device boxes and cable may be used in a concrete and steel-stud structure for receptacles and switches?

A

Metallic boxes, armored cable

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14
Q

Where does the CEC specify the location of the switch for lights in an unfinished basement?

A

Rule 30-506

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15
Q

Where can you find guidelines for locating receptacles required for clothes dryers and electric ranges in dwelling units?

A

CEC rule 26-744

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16
Q

What type of conductors are most receptacles and switches rated for use on?

A

Copper or copper-clad solid conductors

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17
Q

How should the hot or switch-leg be terminated on a four-way switch?

A

Darker-coloured terminal

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18
Q

Where should switches generally be located?

A

Close to the door and on the inside of the room

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19
Q

Which rules should be consulted for governing the branch circuitry in residential occupancies?

A

26-650 through 26-656

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20
Q

What should be ensured about the size of conductors terminated on the device?

A

Within the range specified by the manufacturer

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21
Q

Where should switches be placed when it is impractical to place them inside the room?

A

Directly outside the room, beside the door

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22
Q

What wire sizes are most devices limited to?

A

14 to #12AWG

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23
Q

What do CEC rules 26-720, 26-722, 26-724 and 26-726 specify about receptacles?

A

Locations, loads provided, and prohibited locations

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24
Q

What are some possible ways to terminate general-use receptacles and switches?

A

push-in ports, side-mounted screws, screw-down compression terminals

25
Q

What color terminal is used for ungrounded conductors?

A

Brass

26
Q

What is the preferred method of termination for many electricians?

A

Wrapping the conductor under the screw terminal or using the screw-down compression terminal

27
Q

What color terminal is used for the identified/neutral conductor?

A

Silver

28
Q

What can happen if you install or use equipment in ways contrary to the manufacturer’s instructions?

A

Void warranty

29
Q

What letters indicate hot terminals?

A

X, Y, Z

30
Q

What considerations must be addressed when installing switches and receptacles?

A

Wiring Methods

31
Q

Who predetermines the locations of receptacles and switches in installations?

A

Architects and electrical engineering firm

32
Q

Who is often responsible for determining layout when there are no electrical plans for an installation?

A

Electrical contractor

33
Q

In what type of construction is it common for the electrical contractor to determine layout without electrical plans?

A

Single-family detached residential

34
Q

What is the requirement for receptacles in child care facilities according to 26-706(1)?

A

Must be tamper-resistant

35
Q

What requirement does 26-710 set for rooftop receptacles?

A

GFCI Class A protected, CSA configuration 5-20R

36
Q

What protection is required for outdoor receptacles installed within 2.5m of finished grade in residential occupancies?

A

GFCI Class A protected

37
Q

What must the wiring method used to supply receptacles and switches abide by?

A

Bonding requirements of Section 10 of the CEC

38
Q

What does CEC rule 10-612(6) require electricians to do when installing devices?

A

Bond the devices to prevent disruption of bond system

39
Q

What considerations should be taken when terminating devices like general-use receptacles or switches?

A

Check compatibility with wiring, especially if aluminum or stranded conductors

40
Q

How can the top of general-use switches be identified?

A

Stamp on the mounting frame

41
Q

What should be used to terminate the device if aluminum or stranded wiring has been run to the device box?

A

Solid copper conductor pig-tails

42
Q

In most installations, how are other non-locking receptacles installed?

A

Ground slot oriented downward

43
Q

What does CEC rule 30-320 pertain to?

A

Installing light switches in bathrooms or damp locations

44
Q

Why is it important to use appropriately installed pig-tails of solid copper conductor?

A

To terminate the device

45
Q

Where are receptacles in hospitals often required to be oriented differently than usual?

A

Ground slot upward

46
Q

Where in the CEC can you find the requirements for the location and spacing of receptacles when not specified in an electrical plan?

A

CEC rules 26-720, 26-722, 26-724 and 26-726

47
Q

Why would it be necessary to pigtail appropriately sized jumpers to terminate on the device?

A

larger wire size for voltage drop

48
Q

When are twistlock receptacles required according to CEC?

A

Facing downward, rated 30A or more

49
Q

What does 26-720(m) require in public corridors and stairways of multi-unit residential occupancies?

A

Duplex receptacle every 10m

50
Q

What should be ensured when terminating conductors using any method?

A

Conductors are not stripped too long

51
Q

How do homeowners sometimes incorrectly terminate traveller sets on a switch?

A

One on black and one on brass-terminal

52
Q

What convention do receptacles use to ensure correct polarity?

A

Terminal colour-coding

53
Q

What does rule 30-500 require for each entrance?

A

Light fixture with a switch inside

54
Q

What is the maximum spacing between receptacles in dwelling units according to 26-724(a)?

A

3.6m

55
Q

How can electricians achieve preventing a disruption of the bond system when installing devices?

A

Pigtail the bonding conductor for each device

56
Q

What does the marking on general-use switches help ensure?

A

Turning the load on in the up position and off in the down position

57
Q

What is required by CEC rule 26-744(6) (c) for non-locking receptacles used for electric ranges?

A

U-ground slot oriented to either side

58
Q

What do the darker-coloured terminals on a four-way switch signify?

A

Fixed pole common

ELX (55 decks)

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