All Flashcards

(106 cards)

1
Q

Total amount of energy that could be generated by the combustion reaction if a fuel were to completely burn.
Measured in?

A

Heat of combustion

Kilojoules or mega joules

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2
Q

Energy released per unit of time as a given fuel burns

Measured in?

A

Heat release rate

Kilowatts or megawatts

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3
Q

The dominant method of heat transfer in the early stages of fire development

A

Convection

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4
Q

Scientific measurement of how much heat is available for transfer to human skin or other surface

A

Heat flux

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5
Q

Pockets of flames seen intermittently in smoke

A

Ghosting

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6
Q

NFPA 1500

A

Standard on fire department occupational safety health and wellness

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7
Q

A continuous process of identifying hazards and risks and taking steps to eliminate or reduce them in the rapidly changing circumstances of an operational incident

A

Dynamic risk assessment

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8
Q

NFPA 1561

A

Standard on fire department incident management system

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9
Q

A magnesium silicate mineral that occurs as slender string flexible fibers

A

Asbestos

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10
Q

Colorless odorless gas causing headache dizziness weakness confusion nausea unconsciousness and death

A

Carbon monoxide

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11
Q

Colorless gas with a pungent odor highly irritating to the nose. Suspected carcinogen

A

Formaldehyde

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12
Q

Reddish brown gas or yellowish brown liquid highly toxic and corrosive

A

Nitrogen dioxide

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13
Q

Small particles that can be inhaled and deposited in the mouth trachea or lungs

A

Particulates

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14
Q

Colorless gas with chocking or suffocating odor toxic and corrosive

A

Sulfur dioxide

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15
Q

The practice of minimizing damage and providing customer service through effective mitigation and recovery efforts before during and after an incident

A

Loss control

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16
Q

Ongoing mental evaluation process performed by the operational officer in charge of an incident to evaluate all influencing factors and to develop strategic goals

A

Size-up

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17
Q

Operations conducted once the main body of fire is extinguished consisting of searching for and extinguishing hidden fire

A

Overhaul

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18
Q

Strong respiratory irritant produced when polyethylene is heated and when items containing cellulose

A

Acrolein

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19
Q

Colorless but very pungent and irritating gas given off in the thermal decomposition of materials containing chlorine

A

Hydrogen chloride

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20
Q

Colorless gas with a characteristic almond odor 20 times more toxic than CO produced by combustion of natural materials containing nitrogen as in polyurethane foam

A

Hydrogen cyanide

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21
Q

Colorless odorless and nonflammable gas produced in free burning fires. Nontoxic but excludes oxygen

A

Carbon dioxide

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22
Q

Gases liberated in combustion of pyroxylin plastics. Pulmonary irritant with vapors and smoke having reddish brown or copper color

A

Nitrogen oxides

Nitrogen dioxide is of most concern

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23
Q

Highly toxic colorless gas with odor of musty hay produced from refrigerants such as Freon contact flame

A

Phosgene

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24
Q

Heat removal from the interior of a building by fire fighters opening exterior windows and doors

A

Vent-as-you-go

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25
Attempt to save property and reduce further damage after a fire by removing or covering
Salvage
26
NFPA 1932
Standard on use maintenance and service testing of in service fire department ground ladders
27
Ideal climbing angle for ladders
75 degrees
28
NFPA 1500
Standard on fire department occupational safety and health program
29
NFPA 1583
Standard on health related fitness programs
30
Ground ladders can be used up to how many stories in height
4
31
System of barriers surrounding designated areas at emergency scenes intended to limit the number of persons exposed to the hazard
Control zone
32
LEL for natural gas
5% | Perimeter set at .5%
33
LEL for propane
1.5% | Perimeter set at .15%
34
An abnormal low resistance path between conductors that allows a high current flow that normally leads to an over current condition
Short circuit
35
Polycarbonate plastic used for windows. 1/2 the weight of glass 30 times stronger than safety glass and 250 times stronger than ordinary glass
Lexan
36
Type of glass consisting of 2 layers of glass with a transparent layer of vinyl bonded into the center
Laminated glass
37
NFPA 1620
Recommended practice for pre-incident planning
38
Primary search using a search line system requires a team of how many firefighters
3
39
NFPA 101
Life safety code
40
EIFS veneer May be as thick as?
1 foot
41
Exterior masonry walls as thick as
8-12 inches
42
Positive pressure blowers set up outside doors how many feet
6 ft
43
Hydraulic ventilation directed through a door or window at what degree pattern covering what percentage of the opening at how many feet inside the room
60 degree pattern 85-90% 2 feet
44
With arched roofs arches are typically spaced how far
16-20 ft
45
Wooden/metal trusses are spaced
2 ft on center
46
Pitched roof trusses are spaced | Can span up too
2-4 ft | 55ft
47
Wooden I beam spacing is
2 feet on center
48
NFPA 203
Guidelines on roof coverings and roof deck construction
49
Only vertical ventilation cut that requires to cut the rafters and purlins
Rolling back the roof
50
Neutral plane in a building/high rise that is closed off exists between what percentage of its height
35-50%
51
NFPA 204
Standard for smoke and heat venting
52
Curtain boards extend a distance equal to at least ____% of the vertical distance from the floor to the roof but no lower than ____ feet above the floor
20% | 10 feet
53
4 leadership skills in Crew Resource Management
Authority - mission safety Mentoring- leader demonstrating skills Conflict resolution- identifying core conflict issues Mission analysis- evaluating risk versus gain identify objectives develop strategies and tactics
54
Windows on a vertical wall between 2 offset roof sections
Clerestory windows
55
Vertical division between multiple windows or a double door opening
Mullion
56
Windows that are usually opened and closed using a small hand crank built into the frame. One or two outward swinging sashes
Casement window
57
These windows have two or more sashes, one of which is fixed and the others are movable. Movable sashes can be lifted out of the frame without damage
Horizontal sliding window
58
These windows have one or more top hinged outward swinging sashes
Awning windows
59
These windows consist of narrow horizontal panes of glass set in pivoting brackets at each end. The panes overlap in a louver like fashion
Jalousie windows
60
Aka factory windows, may be hinged at the top or bottom and may swing in or out
Projected windows
61
Have bottom hinged inward swinging sashes. Upside down awning window
Hopper windows
62
Double or triple glazed window with space between the panes
Energy efficient windows
63
Energy efficient windows with superior insulating properties and hold more heat than conventional windows
Thermal windows
64
Rated assemblies designed to reduce the likelihood of horizontal fire spread by compartmentalizing a building with fire resistive separations
Firewalls
65
Most roof assemblies employ a parallel rafter system with rafters spaced how far
12-24 inches on center
66
Recommended clear spacing of ____ feet be maintained in all directions from anyone using a cutting tool in vertical ventilation
10 feet
67
Heavy duty trusses with sloping ends Top chords are shorter than the bottom cords Truss spacing can be as much as ___ feet
Bridge truss | 16-20 feet
68
High gabled roof with a vertical wall above a downward pitched shed roof section on either side
Lantern roof
69
Roof that can be seen as half gabled roof or as a slightly pitched flat roof sloped in 1 direction only
Shed roof
70
A frame configuration roof consisting of rafter that run perpendicular to the ridge beam and down to and usually beyond the outside walls Rafters comply spaced_____ inches
Gabled roof | 16-24 inches
71
Roof slopes down to meet every outside and consisting of a ridge beam with conventional rafters running perpendicular to the ridge and rafters running from the ends of the ridge beam
Hip roof
72
Roof that has a double slope on each of its 4 sides with a slight hipped peak or ridge
True mansard roof
73
Roof that includes characteristics of both flat and pitched roofs with 4 steeply sloped sides rise to meet a flat top called a deck may utilize bridge trusses or k trusses
Modern mansard roof
74
Roof that is essentially a gable type with 2 different slopes on each side of the peak and with the lower slope being steeper than the upper slope
Gambrel roof
75
Roof consisting of a series of small pitched roofs similar in shape to the teeth of a saw
Sawtooth roof
76
Roof with 2 opposing shed roofs that meet at their lower edges in the middle of the building
Butterfly roof
77
Involves the leader ensuring mission safety fostering an environment of respectful communication establishing tasks with clearly defined goals and considering crew input
Authority
78
Involves the leader demonstrating skills and techniques, demonstrating professional standards and best practices verbalizing errors and limitations promptly recommending solutions monitoring and assessing crew performance and motivating crew members
Mentoring
79
Involves the leader identifying core conflict issues encouraging diplomatic questioning of the actions/decisions of others, acknowledging differences of opinion and accepting constructive criticism
Conflict resolution
80
Involves the leader evaluating risk versus gain identifying objectives developing strategies and tactics to meet the identified objectives implementing and action plan expecting the unexpected evaluating the effectiveness of the action plan and devising alternative strategies
Mission analysis
81
Formation of smoke into layers as a result of differences in density with respect to height
Stratification
82
Thermal or chemical decomposition of fuel because of heat that generally results in the lowered ignition temperature of the material
Pyrolysis
83
Groove cut in the surface or on the edge of a board to receive another member
Rabbet
84
Outcome of combustion in a confined space in which gases tend to form into layers according to temperature
Thermal layering
85
Knowledge of basic fire science and fire dynamics is known as
Fire behavior
86
______ occurs and energy is expended when a force is applied to an object over a distance Means to increase temperature
Work
87
Unit of work or energy in the international system of units | 1 newton moves a body through 1 meter
Joules
88
How many joules to raise the temperature of 1 kilogram of water 1 degree Celsius 1 btu equals how many joules 1 btu equals how many kilojoules 1 calorie equals how many joules
4,186 1,100 1.055 4.19
89
What is the energy component of the fire tetrahedron
Heat
90
_____ ventilation in a structure is the actual and potential air flow based on natural air currents structural openings construction types and building ventilation systems
Existing
91
Wooden deck roof. Panels of______ thickness offer little fire resistance
3/8-5/8
92
In the inverted roof the main roof hoist are set at the level of ceiling and a framework of _______ member are constructed above the joists
2x4
93
Poured gypsum roof. Layer of gypsum cement up to _____ inches thick
2 1/2
94
Parallel rafter systems spaced _____ on center
12-24 inches
95
Arches spaced _____ on center
16-20 feet
96
Gabled roof rafters are commonly spaced _____ on center
16-24 inches
97
Bridge truss roof. Trusses are often _____. Joist are usually ______ covered with _____ sheathing. Truss spacing may be as much as ______
2x12 trusses 2x6 or 2x8 joists 1x6 sheathing 16-20 feet spacing
98
Sawtooth roof rafters ______ lumber or larger
2x8 inch
99
Bowstring truss roof. Top chords of these arches are usually laminated _____ or larger lumber. The purlins usually _____ inches are covered by _____ inch or larger sheathing
2x12 inch 2x10 inch 1x6 inch
100
Trussless arch roof spaced
16 and 20 feet
101
Lamella arch roof. The framework is usually constructed of dimensional lumber in which _____ wooden members are bolted together
2x12 inch
102
Panelized roof construction consists of laminated beams commonly ______inches. Spaced ______ feet and lengths over ______ feet.
6x36 inch 12-40 feet 100 feet
103
Wooden/metal trusses. Normal spacing of these trusses are _____ feet on center
2 feet
104
Pitched roof trusses. Usually _____ inch lumber. Spans of up to _____ feet. Spaced _______ feet on center and _____ ______ inch plywood used as sheathing
2x4 inch 55 feet 2-4 feet 1/2 inch
105
Wooden i beams chords are _______ in lumber with _____ inch plywood for the web. Spaced ______ feet on center
2x3 or 2x4 inch 3/8 inch 2 feet
106
1/4 steel plate weighs about _____ pounds per square foot
10