Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Gas > Appliance Venting > Flashcards

Appliance Venting Flashcards

1
Q

All gas fire appliances must be connected to?

A

Effective vent or chimney

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A vent may be any shape

T or F

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does ROT stand for

A

Rule of Thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

All exterior vents must be ?

A

Insulated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When do we use the depressurization column

A

Sizing a vent or chimney in an air tight building

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How do we define an exterior chimney?

A

Any chimney with one or more sides exposed to the outdoors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

If we are changing the size of the vent connector for an appliance, where do we make the change?

A

At the draft hood or flue collar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the minimum total vent height for an appliance if we are changing the connector size

A

10 feet (3m)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

An appliance outlet size reduction of more than how many table sizes is not allowed if the appliance outlet size is 12” or under

A

1 table size

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Appliances with a draft hood of what size or smaller cannot be reduced

A

4”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Do elbows reduce or increase the capacity of the vent or vent connector

A

Reduce

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

If we used more than two elbows in a vent connector, each additional elbow will reduce the table capacities by——— for draft hood equipped appliances and ——— for fan-assisted appliances

A

10% and 15%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When can we assume two elbows are used in the venting of an appliance

A

When the lateral length is greater than 0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a common header referred to as

A

Common vent connector manifold

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Why must table capacity be reduced when we use a common header

A

Turbulence causes a decrease in venting capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A vent connector should not exceed ——- for every ——- of diameter

A

18” for every 1” of diameter

17
Q

What do we call the motive force that is used to vent the products of combustion

A

Convection

18
Q

The maximum offset for a common vent is ———- for every ——- of diameter

A

18” for every 1” of diameter

19
Q

The entire province is considered what altitude ?

A

High

20
Q

The sizing for fan-assist appliances will give a ————- and a ————— capacity.

A

Fan minimum and Fan maximum

21
Q

Can a fan- assist appliance ever be connected to a masonry chimney

A

If the appliance has a draft hood

22
Q

Corrugated metal liner installed in a masonry chimney is considered equivalent to what type of vent.

A

Type b vent

23
Q

Because corrugated liner has a rough inner surface, vent table capacities must be reduced by what percent

A

20%

24
Q

How do we measure the total height of a common vent serving two or more appliances ?

A

Highest connected draft hood or flue collar to the level of the rain cap

25
Q

For appliances in a multi storey installation how do we size the vent connector for the lowest appliance

A

Sized as a vent for a single appliance

26
Q

If actual vent height or lateral or connector rises are not found on the tables l, the table must be————- but ———— is not allowed

A

Interpolated but extrapolation is not allowed

27
Q

What is the clearance for a single wall vent connector

A

6”

28
Q

What is the clearance of a double wall vent connecter

A

1”

29
Q

What is the minimum effective height for a vent

A

5 feet

30
Q

What is an example of a direct vent appliance

A

Fireplace

31
Q

3 examples of checking draft

A

Match test
Visual inspection
Draft gauges

32
Q

A space heater installed in bathroom should be of the direct vent type

True or false

A

True

33
Q

What’s the minimum distance between a vent terminal and a mechanical air supply of a building

A

6 feet 1.8 meters

34
Q

What’s the minimum distance a vent can terminate near any gas regulator

A

3ft 900 mm

35
Q

Can a manually operated damper be used in a residential appliance

A

No

36
Q

What device is used in a thermally operated damper

A

Bi metal strip

Gas (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions