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Sheet Metal First Year > Residential Installations and codes (110104h) > Flashcards

Residential Installations and codes (110104h) Flashcards

1
Q

The safety of the workers and job sites is governed by which code?

A

OH & S

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2
Q

The installation of gas appliances and piping is governed by which code?

A

B149.1-05 CAN/CSA
Natural gas and propane installation code

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3
Q

The part of the job where the pentrations to the exterior are installed is the?

A

Rough in stage

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4
Q

The part of the job where the furnace is placed in a permanent position is the?

A

Ductwork stage

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5
Q

Whose responsibility is it to ensure the job is done properly and to the applicable code?

A

The installer

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6
Q

The clearance between an exhaust hood and regulator vent on natural gas or propane line coming into a building is?

A

3 feet or 1 meter 39 inches in real job site

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7
Q

Hoods to the exterior should be minimum how far off ground?

A

18 inches

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8
Q

What size is dryer vent?

A

4 inches

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9
Q

What size is range hood?

A

6 inch

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10
Q

What size of duct hanger is used on return air duct?

A

10 inch

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11
Q

What size of duct hanger is used on hot air duct?

A

11 inches

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12
Q

What is the easiest way to open drive cleats ?

A

With a screwdriver

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13
Q

What does hrv stand for?

A

Heat recovery ventilation

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14
Q

What does ABC stand for?

A

Alberta building code

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15
Q

What does the ABC ( Alberta building code) list?

A

A list of technical requirements for buildings constructed in alberta.

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16
Q

What is the agency that tests furnaces?

A

CSA or
Underwriters Laboratories or
Underwriters Laboratories of Canada

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17
Q

What does the heat loss calculation determine?

A

Size of furnace used

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18
Q

What are 3 different types of installations for an hrv unit?

A

No separate ductwork
Separate intake ductwork
Stand alone system

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19
Q

What does SMACNA mean?

A

Sheet Metal and Air conditioning Contractors National Association

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20
Q

In the sheet metal trade the governing codes that are to be followed would fall under the?

A

National or Provincial codes

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21
Q

Once the house is framed what should the sheet metal worker do?

A

Rough in

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22
Q

Once the house has concrete what can the sheet metal worker do?

A

Basement ductwork

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23
Q

What does a range hood remove from a home?

A

Moisture, airborne greases and oils

24
Q

What type of venting is used for high efficiency furnaces?

A

Pvc 636

25
Q

Which air can only be drawn through metal ducting or piping?

A

Supply

26
Q

What is the purpose of a fire stop?

A

To stop any fire that may travel inside the chase

27
Q

What else is required for a high efficiency furnace?

A

A line to the floor drain

28
Q

When setting a furnace what connects to the hole that has to be cut into the side?

A

Return air
Filter rack

29
Q

Dryer vent joints are secured with?

A

Foil tape

30
Q

After an inspection what should be on site after installation has passed?

A

Passed inspection tag

31
Q

What is the clearance required for the front of the furnace?

A

24 inches

32
Q

The ABC (Alberta Building Code) requires rectangular duct that is over 12 inches to be what?

A

Cross broken

33
Q

Building construction standards specific to alberta are covered by which code?

A

ABC (Alberta Building Code)

34
Q

Which agency conducts tests and writes standards specifically for HVAC?

A

SMACNA

35
Q

What agency conducts tests and certifies products used by consumers?

A

CSA and ULC

36
Q

Which agency conducts tests and writes standards related to fire protection?

A

NFPA
National Fire Protection Association

37
Q

The part of the job where the thermostat is mounted permanently is?

A

Final stage

38
Q

Single wall vent connector on wood burning appliances requires what clearances to combustibles?

A

18 inch

39
Q

The clearance between fresh air hood and regulator vent on a natural gas or propane line into a building?

A

10 feet

40
Q

When should vent pipe for a bath fan be insulated?

A

When it passes through an unheated attic space

41
Q

Exhaust hoods should have what?

A

A damper to reduce the amount of air coming back into the building when fan is not running

42
Q

What should be installed around return air inlets?

A

Return air rail
Return air frame

43
Q

What is used to position underslab piping?

A

Metal stakes

44
Q

Return air hangers are cut to what size?

A

2 inches longer than the sides of duct they are used for

45
Q

Supply air hangers are currently to what size?

A

3 inches longer than the side of the supply duct

46
Q

What is required for a heat loss calculation?

A

Blueprints

47
Q

What is the purpose of a heat loss calculation?

A

To determine furnace size

48
Q

What is minimum clearance for B vent?

A

1 inch

49
Q

What is minimum clearnace for L vent?

A

3 inch

50
Q

What is minimum clearance for A-vent?

A

2 inch

51
Q

What is the minimum clearnace for c vent (liquid fuel)?

A

18 inches

52
Q

What is the minimum clearnace for c vent (gas appliances)?

A

6 inches

53
Q

What is the minimum clearnace for c vent (solid fuel)?

A

18 inches

54
Q

What does an insulation stop do?

A

Makes sure insulation does not contact the vent pipe

55
Q

What is minimum gauge for a 6 inch pipe?

A

30 gauge

56
Q

Where should a roof jack be fastened?

A

On the high side of the roof

57
Q

Why should more air be supplied to a crawl space than is drawn in to the return?

A

So the space is pressurized

Sheet Metal First Year (31 decks)

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