Brainscape's Knowledge GenomeTM

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


See full index

HVAC/ Mechanical Trainig > Chapter 8: Chimney and Vents > Flashcards

Chapter 8: Chimney and Vents Flashcards

1
Q

Appliances other than gas shall be vented in accordance with the manufacturer’s instructions and NFPA _____________.

A

211

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

Equipment not required to be vented includes __________.

A

Listed Ranges

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

Gas utilization equipment requiring venting shall be permitted to be vented by means of a mechanical draft system either forced or induced draft design except for ___________.

A

Incinerators

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

A listed vented wall furnace would use __________ vents.

A

Type B-W

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

No portion of a venting system shall pass through a ____________ or furnace plenum.

A

Circulating air duct

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

Factory-built chimneys used to vent appliances that operate at ________ pressure shall be listed for such application.

A

Positive

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

A chimney for residential-type a low-heat gas utilization equipment shall extend at least _________ feet above the highest point where it passes through a roof of a building.

A

3 feet

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

A chimney for medium-heat equipment shall extend at least ________ feet higher than any portion of any building within _________ feet.

A

10 feet, 25 feet

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

A gas vent passing through a roof shall extend ________ a roof flashing, roof jack, or roof thimble and terminate with a _______.

A

Entirely through, listed termination cap

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

Any angle greater than ________ degrees from the vertical direction is considered _________.

A

45, horizontal

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

The total horizontal distance of a vent plus the horizontal vent connector shall not exceed ________ percent of the vertical height of the vent.

A

75%

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

Vents serving Category I fan-assisted appliances shall be installed in accordance with the _______________ or other approved engineering methods.

A

installation instructions and Section 803

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

A 14-inch diameter gas vent extending through a metal flashing less than 8 feet from a vertical wall must extend at least ________ feet above the vertical wall.

A

2 feet

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

a Type B or Type L gas vent shall terminate at least _______ feet in vertical height above the highest connected draft hood or flue collar.

A

5 feet

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

A Type BW gas vent shall terminate at least ________ feet above the bottom of the wall furnace.

A

12 feet

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

A gas vent extending through an outside wall shall not terminate adjacent to the wall or below _____________.

A

Eaves or parapets

17
Q

For sizing gas vents for Categories II, III, IV appliances, the gas vent shall comply with ____________.

A

The equipment manufacturer’s instructions

18
Q

A common vent serving Category I appliances in multistory installations is permitted, providing the vent system is designed and installed in accordance with ________________.

A

Approved engineering methods and this code

19
Q

Single-wall meter vent pipe shall not be used ____________ for venting gas appliances.

A

Outdoors in cold climates

20
Q

Single-wLl metal pipe shall used to vent gas appliances shall not originate in any _____________.

A

Unoccupied attic or concealed space

21
Q

A mechanical draft venting system shall terminate at least ___________ feet above any forced air inlet within 10 feet.

A

3 feet

22
Q

A mechanical drafting venting system, of other than direct-vent type , shall terminate at least __________ feet below our horizontally from a door, operable window, or gravity air inlet into any building.

A

4 feet

23
Q

The bottom of any mechanical draft or direct-vent terminal shall be at least _________ inches above grade.

A

12 inches

24
Q

A vent connector shall be made of noncombustible ___________ material capable of withstanding the vent gas temperature produced by the gas utilization equipment.

A

Corrosion-resistant

25
Q

Vent connectors shall be covered with ___________.

A

Insulation

26
Q

A vent connector shall be installed so as to ___________ and construction features that create excessive resistance to the flow of the flue gases.

A

Avoid turns

27
Q

A vent connector shall slope upward at a slope non less than ___________ inch per foot.

A

1/4 inch

28
Q

Vent connector supports shall be _________.

A

Adequate for the design and weight of the material

29
Q

A vent connector shall not pass through any ceiling, floor, or _________.

A

Fire-resistance-rated-wall

30
Q

Through-the -wall vents for Category IV and noncategorized condensing appliances shall not terminate over ___________.

A

Public ways

HVAC/ Mechanical Trainig (7 decks)

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