R2 LT2

Question 1

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

Answer 1

Less reliable and secure connection

Question 2

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

Answer 2

Maximum 900 mm

Question 3

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

Answer 3

By means of attachment screws.

Question 4

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

Answer 4

Not installed according to manufacturer’s instructions

Question 5

Where are rules for installing receptacles on rooftops covered?

Answer 5

Rule 26-710

Question 6

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

Answer 6

Yes

Question 7

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

Answer 7

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

Question 8

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

Answer 8

Very specific requirements.

Question 9

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

Answer 9

Plastic boxes, non-metal sheathed cable

Question 10

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

Answer 10

Receptacles facing upwards

Question 11

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

Answer 11

Rule 30-504

Question 12

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

Answer 12

Class A GFCI

Question 13

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

Answer 13

Metallic boxes, armored cable

Question 14

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

Answer 14

Rule 30-506

Question 15

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

Answer 15

CEC rule 26-744

Question 16

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

Answer 16

Copper or copper-clad solid conductors

Question 17

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

Answer 17

Darker-coloured terminal

Question 18

Where should switches generally be located?

Answer 18

Close to the door and on the inside of the room

Question 19

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

Answer 19

26-650 through 26-656

Question 20

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

Answer 20

Within the range specified by the manufacturer

Question 21

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

Answer 21

Directly outside the room, beside the door

Question 22

What wire sizes are most devices limited to?

Answer 22

14 to #12AWG

Question 23

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

Answer 23

Locations, loads provided, and prohibited locations

Question 24

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

Answer 24

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

Question 25

What color terminal is used for ungrounded conductors?

Answer 25

Brass

Question 26

What is the preferred method of termination for many electricians?

Answer 26

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

Question 27

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

Answer 27

Silver

Question 28

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

Answer 28

Void warranty

Question 29

What letters indicate hot terminals?

Answer 29

X, Y, Z

Question 30

What considerations must be addressed when installing switches and receptacles?

Answer 30

Wiring Methods

Question 31

Who predetermines the locations of receptacles and switches in installations?

Answer 31

Architects and electrical engineering firm

Question 32

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

Answer 32

Electrical contractor

Question 33

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

Answer 33

Single-family detached residential

Question 34

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

Answer 34

Must be tamper-resistant

Question 35

What requirement does 26-710 set for rooftop receptacles?

Answer 35

GFCI Class A protected, CSA configuration 5-20R

Question 36

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

Answer 36

GFCI Class A protected

Question 37

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

Answer 37

Bonding requirements of Section 10 of the CEC

Question 38

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

Answer 38

Bond the devices to prevent disruption of bond system

Question 39

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

Answer 39

Check compatibility with wiring, especially if aluminum or stranded conductors

Question 40

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

Answer 40

Stamp on the mounting frame

Question 41

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

Answer 41

Solid copper conductor pig-tails

Question 42

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

Answer 42

Ground slot oriented downward

Question 43

What does CEC rule 30-320 pertain to?

Answer 43

Installing light switches in bathrooms or damp locations

Question 44

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

Answer 44

To terminate the device

Question 45

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

Answer 45

Ground slot upward

Question 46

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

Answer 46

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

Question 47

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

Answer 47

larger wire size for voltage drop

Question 48

When are twistlock receptacles required according to CEC?

Answer 48

Facing downward, rated 30A or more

Question 49

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

Answer 49

Duplex receptacle every 10m

Question 50

What should be ensured when terminating conductors using any method?

Answer 50

Conductors are not stripped too long

Question 51

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

Answer 51

One on black and one on brass-terminal

Question 52

What convention do receptacles use to ensure correct polarity?

Answer 52

Terminal colour-coding

Question 53

What does rule 30-500 require for each entrance?

Answer 53

Light fixture with a switch inside

Question 54

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

Answer 54

3.6m

Question 55

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

Answer 55

Pigtail the bonding conductor for each device

Question 56

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

Answer 56

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

Question 57

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

Answer 57

U-ground slot oriented to either side

Question 58

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

Answer 58

Fixed pole common