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Truck company > Ch 12 Horizontal Ventilation > Flashcards

Ch 12 Horizontal Ventilation Flashcards

1
Q

Using the ejector flexible duct combination is also an excellent method of ventilating areas______

A

Below grade

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2
Q

As the name implies, a ______ window does not open but has a permanently glazed pane or panes set in a wooden, vinyl, or metal frame

A

Fixed

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3
Q

________ Windows have one movable section; in ________windows, both halves are movable

A

Single hung, double hung

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4
Q

_________ Windows are usually opened and closed using a small hand crank built into the frame

A

Casement

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5
Q

These windows have two or more sashes, one of which is fixed and the other or others are movable

A

Horizontal sliding windows

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6
Q

These windows have one or more top hinged Outward swinging sashes

A

Awning windows

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7
Q

These windows consist of Narrow horizontal panes of glass set in pivoting brackets at each end

A

Jalousie windows

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8
Q

These windows, also known as factory windows, maybe hinged at the top or bottom and may swing inward or outward

A

Projected windows

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9
Q

______ Windows have bottom hinged, inward swinging sashes

A

Hopper

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10
Q

Many sliding type interior fire doors are metal clad assemblies suspended from _______ mounted on the surface of a rated firewall

A

Slanting tracks

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11
Q

The most significant difference between telescoping doors and other types of service doors is that the telescoping doors consist of two layers separated by at least _______inches of air space

A

2

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12
Q

The _________, located between the foundation footing and the first floor, may extend well above the ground if the building occupies a sloping site

A

Stem wall

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13
Q

_________ are rated assemblies designed to reduce the likelihood of horizontal fire spread by compartmentalizing a building with fire resistive separations

A

Firewalls

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14
Q

Exterior masonry walls usually range from ____ to ____ inches or more in thickness

A

8-12

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15
Q

These walls are essentially frame walls in which 2 x 4“ or 2 x 6“ wood or metal studs are covered with a layer of plywood or oriented strand board for sheer strength

A

Veneer over frame walls

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16
Q

Some buildings have a foam veneer called in exterior insulation finishing system that is applied to the outside for aesthetic purposes. The EIFS veneer maybe as much as____ thick

A

1 foot

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17
Q

Some buildings have a foam veneer called an exterior insulation and finishing system that is applied to the outside for aesthetic purposes. These walls can be recognized by the _____ sound they make when tapped with a tool

A

Hollow

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18
Q

Some veneers, such as brick or stone, are attached to the studs with thin, corrugated pieces of sheet metal called______

A

Wall ties

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19
Q

Of all the various methods of ventilating burning buildings, ______ ventilation is by far the most often used

A

Natural horizontal

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20
Q

Whenever any ______ is open for ventilation purposes, whether for natural or mechanical ventilation, the opening should be maintained by blocking the door open with a wooden or rubber doorstops, pieces of furniture, or special hinge hooks

A

Swinging door

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21
Q

For ventilation purposes, interior doors may be opened and closed one by one in a______ process of ventilating an entire floor

A

Systematic

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22
Q

When windows are open for tactical ventilation, screens, curtains, drapes, or blinds should be removed because they will hinder airflow. In most cases, the exit opening should be about ______ as large as the inlet opening

A

Twice

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23
Q

Smoke ejectors are usually set up in openings on the______ side of the building

A

Leeward

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24
Q

_______ is the phenomenon of smoke blowing back out the top of the opening, only to be drawn back into the compartment at the bottom of the opening by the slight vacuum created by the action of the ejector

A

Churning

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25
Q

For PPV, blowers are set up about_____ outside the point of entry into the building so the cone of air they create completely covers the inlet opening

A

6 feet

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26
Q

Compared with mechanical smoke ejectors, fog streams are capable of removing ______ times more smoke, depending on the type and size of the nozzle, the angle of the spray pattern, and the location of the nozzle in relation to the ventilation opening

A

2-4x

27
Q

A fog or spray stream directed through a window or doorway with a ______ pattern covering 85 to 90% of the opening provides the best results for ventilation

A

60- degrees

28
Q

Because ventilation will almost always ______________, the fire may be intensified if operations are begun before attack lines are ready to be taken into the building

A

Increase Heat release rate

29
Q

__________ are preferred for ventilating burned areas during overhaul

A

Electric fans

30
Q

Fire departments also use flexible ducting that is up to______ in diameter, and is made of smooth, translucent plastic

A

24 inches

31
Q

Double casement windows may be separated by a fixed pane or simply by vertical post call a _______

A

Mullion

32
Q

Although there are several brands of energy efficient windows, they are all commonly referred to as______ windows

A

Thermal

33
Q

Because of their superior insulating properties, ______windows hold in more heat than conventional windows

A

Thermal

34
Q

________ Doors are most common on storage, commercial, industrial, or agricultural buildings

A

Exterior sliding

35
Q

The most significant difference between telescoping doors and other types of service doors is that _____ doors consist of two layers separated by at least 2 inches of air space

A

Telescoping

36
Q

Important factors to be considered for horizontal ventilation _____,_________,_______

A

Location of the fire
Wind direction and speed
Location of ventilation openings

37
Q

Movement of smoke being blown out of a ventilation opening only to be drawn back inside by the negative pressure created by the ejector because the open area around the ejector has not been sealed

A

Churning

38
Q

_______ Remains the most frequently used form of tactical ventilation

A

Horizontal ventilation

39
Q

Accessories, such as flexible ducts, stacking and hanging devices, and other support systems allow for flexibility in the placement of__________

A

Smoke ejectors

40
Q

Because it is supported by the steel coil, _______can be used in either positive pressure ventilation or negative pressure ventilation operations

A

Flexible ducting

41
Q

When using _______ for ventilation, it is important to remember that replacement air must be brought into the area from which contaminants are being expelled

A

Smoke ejectors

42
Q

Piper providing the replacement air via a _______to the most distant part of the compartment, is possible to exhaust the contaminants and bring replacement air through the same doorway or access opening

A

Flexible duct

43
Q

Fixed windows are often flanked by ______ windows or are stacked with ______ windows that can be opened

A

Double hung or casement, awning or hopper

44
Q

Some _____ windows are double or triple glazed

A

Energy efficient

45
Q

Some energy efficient windows are double or triple glazed. Regardless of how many Panes are in each window, there is always a space between the panes. The space may be filled with ______,______ or some other inert gas

A

Air, Argon

46
Q

Regardless of its design or location, a door opened for tactical ventilation purposes should be ______, but not removed

A

Blocked open

47
Q

Generally, _____ should not be breached for ventilation purposes

A

Firewalls

48
Q

____ must extend the entire width of the building and, in most cases, extend up to and above combustible roofs

A

Firewalls

49
Q

In the most ______ there are no vertical studs, but some are supported by a rigid structural steel frame with heavy steel pillars

A

Metal walls

50
Q

________ ventilation is intended to support Fire Control and extinguishment

A

Horizontal

51
Q

Weather intentional or not, ______ is started when firefighters make entry into a building for search and rescue or fire attack

A

Horizontal ventilation

52
Q

Whether in horizontal or vertical ventilation operations, _____ is primarily a means of supplementing or augmenting natural ventilation

A

Mechanical ventilation

53
Q

______ are capable of being set up to blow air into a structure, but this is not the purpose for which they were designed

A

Smoked ejectors

54
Q

When smoke ejector‘s are placed in doorways, windows, or other exterior openings, they should be positioned near the _______ because convection causes the majority of the heat and smoke to rise to the top of the compartment

A

Top of the opening

55
Q

_______ Function by creating a slight positive pressure within the structure, this forcing the heat and smoke out of the exit opening

A

Blowers

56
Q

The cone of air from PPV blowers should _____ the inlet opening

A

Completely cover

57
Q

Two blowers placed _____ may be needed to ventilate larger structures

A

In tandem

58
Q

One of the most important factors in deciding how to horizontally ventilate a burning building is _________ within the structure

A

Where the seat of the fire is located

59
Q

Both______ and ________ must be considered when deciding where to locate the inlet and exit openings for horizontal ventilation

A

Wind direction, speed

60
Q

Both wind direction and speed must be considered when deciding where to locate the inlet and exit openings for ________ ventilation 

A

Horizontal

61
Q

By using __________ Two or more smoke ejectors can be coupled to ventilate smoke from basement, attics, suspended ceilings and other confined spaces

A

Flexible ducting

62
Q

From the standpoint of horizontal ventilation, the two most important types of sliding doors are _____ doors and _______ fire doors

A

Exterior sliding, interior sliding

63
Q

The exterior walls of metal buildings are usually of _______ formed into rectangular panels that are applied vertically over a wooden or metal frame

A

Light gauge sheet metal

Truck company (15 decks)

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