Matts Driver Bible STRATEGYFull and Final Flashcards
1
Q
- The ____________ ends with control of the incident, transfer of command to a battalion or district chief, or expansion of the incident management system to a higher level involving additional units and agencies.(S1)
A
- initial response
2
Q
- _____________ describes the meeting point between fire science, materials science, fluid dynamics of gases, and heat transfer. (S9)
A
- Fire dynamics
3
Q
- _______________is the study of matter and energy and includes chemistry and physics. (S9)
A
- Physical science
4
Q
- ** The quantity of heat required to change the temperature of 1 gram of water by 1 degree Celsius is ______ joules. (S11)
A
- 4.2 joules
5
Q
- Fuels hold a certain amount of potential energy before ignition, based on chemical composition. This potential energy available for release in the combustion process is known as the________________________. (S10-11.)
A
- heat of combustion
6
Q
- ** A Btu is the amount of heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. When comparing joules and Btu, _______ J = 1 Btu. (S11)
A
- 1055 J = 1 BTU
7
Q
- In the case of_____________, there is no well-defined inlet or outlet, as the air is entrained (drawn in) from all around the burning fuel. (S14)
A
- open burning
8
Q
- _______________________ = Colorless, odorless gas. Inhalation of _________________ causes headache, dizziness, weakness, confusion, nausea, unconsciousness, and death. Exposure to as little as 0.2 percent _________________ can result in unconsciousness within 30 minutes. Inhalation of high concentration can result in immediate collapse and unconsciousness. (S15)
A
- Carbon monoxide
9
Q
- ____________________ = Colorless gas with a pungent, irritating odor that is highly irritating to the nose. 50-100 ppm can cause severe irritation to the respiratory tract and serious injury. Exposure to high concentrations can cause injury to the skin. _______________ is a suspected carcinogen. (S15)
A
- Formaldehyde
10
Q
- ____________________ = Colorless, toxic, and flammable liquid below 79° F, produced by the combustion of nitrogen-bearing substances. It is a chemical asphyxiant that acts to prevent the body from using oxygen. It is commonly encountered in smoke in concentrations lower than carbon monoxide. (S15)
A
- Hydrogen cyanide
11
Q
- _____________________ = Reddish-brown gas or yellowish-brown liquid, which is highly toxic and corrosive. (S15)
A
- Nitrogen dioxide
12
Q
- ___________________ = Small particles that can be inhaled and deposited in the mouth, trachea, or the lungs. Exposure to particulates can cause eye irritation and respiratory distress (in addition to health hazards specifically related to the particular substances involved).
A
- Particulates
13
Q
- ____________________ = Colorless gas with a choking or suffocating odor. ______________ is toxic and corrosive, and can irritate the eyes and mucous membranes. (S15)
A
- Sulfer dioxide
14
Q
- ** CO molecules attach to hemoglobin, decreasing the blood’s ability to carry oxygen, as it combines with hemoglobin about __________times more effectively than oxygen.
A
- 200 times
15
Q
- ** _____________________is a toxic and flammable substance produced in the combustion of materials containing nitrogen.
A
- Hydrogen cyanide (HCN)
16
Q
- Incomplete combustion of substances that contain nitrogen and carbon produces ____.
A
- HCN
17
Q
- Smoke frequently contains ______, although at lower concentrations than CO.
A
- HCN
18
Q
- ** HCN is a significant byproduct of the combustion of ____________________ used in many household furnishings.
A
- Polyurethane foam
19
Q
- ** HCN is ____ times more toxic than CO.
A
- 35 times
20
Q
- HCN acts as a chemical asphyxiant with a different mechanism of action than CO. HCN prevents the body from using oxygen at the _________ level.
A
- Cellular
21
Q
- CO2 is a product of complete combustion of __________ materials.
A
- Organic materials
22
Q
- Inhaled __________ enters the bloodstream and prevents the blood cells from using oxygen properly, killing the cells.
A
- Inhaled HCN
23
Q
- CO2 acts as a respiratory _____________.
A
- Stimulant
24
Q
- A working knowledge of fire dynamics requires an understanding of temperature, energy, and power or___________________. (S18)
A
- heat release rate (HRR)
25
Q
- ** More than ____________ irritants in smoke have been identified, including hydrogen chloride, formaldehyde, and acrolein.
A
- Twenty irritants
26
Q
- _______is the thermal kinetic energy needed to release a fuel’s potential chemical energy. (S18)
A
- Heat
27
Q
- ____________energy is the most common source of heat in combustion reactions. (S19)
A
- Chemical
28
Q
- __________________, a form of oxidation, is a chemical reaction that increases the temperature of a material without adding external heat. (S19)
A
- Self-heating
29
Q
- Self-heating can lead to___________________, ignition without the addition of external heat. (S19)
A
- spontaneous ignition
30
Q
- ____________ frequently causes exposure fires. (S24)
A
- Radiation
31
Q
- The rate at which heat transfers relates to the temperature differential of the objects and the _____________________of the materials involved. (S21)
A
- thermal conductivity
32
Q
- Table 1.6 shows the thermal conductivity of common materials at the same ambient temperature (68° F). For example, copper will conduct heat more than _______ times faster than steel. Likewise, steel is nearly ______ times as thermally conductive as concrete. ______ is the least able of most substances to conduct heat, so it is a good insulator.
A
- seven, forty, Air
33
Q
- ** Power indicates the rate at which energy transfers. Another way to describe power is the rate at which energy converts between forms. The standard international (SI) unit for power is the ______. One _____ is 1 joule per second (J/s). (S25)
A
- watt (W). watt
33
Q
- Liquid fuels that vaporize sufficiently to burn at temperatures under ______° F present a significant flammability hazard.(S28)
A
- 100 degrees
34
Q
- A fuel’s __________influences its heat of combustion and HRR. The fuel’s _____________________ equals the total amount of thermal energy released when a specific amount of that fuel burns. (S25)
A
- chemical content, heat of combustion
35
Q
- ______ represents the energy released per unit of time as a fuel burns, usually expressed in kilowatts (kW) or megawatts (MW). (S25)
A
- HRR
36
Q
- FLASH POINT OF GASOLINE IS: ______ degrees F. (S28)
A
- -45 degrees F
36
Q
- FIRE POINT OF GASOLINE IS: _____ to ____degrees F. (S28)
A
- -40 to -35 degrees F
37
Q
- Materials ___________ in water will mix in any proportion. (S29)
A
- miscible
38
Q
- __________ describes the extent to which a substance (in this case a liquid) will mix with water. (S29)
A
- Solubility
39
Q
- ** Pyrolysis of wood begins at temperatures below ______° F, lower than the temperature required for ignition of the released vapors. (S29)
A
- Below 400 degrees
40
Q
- ** Normally, air consists of about ___ percent oxygen. (S31)
A
- 21 percent
40
Q
- ** When the atmosphere’s oxygen concentration exceeds _____ percent, the atmosphere is considered oxygen-enriched and presents an increased fire risk. (S32)
A
- 23.5 percent
41
Q
- ** When placed in an oxygen-enriched atmosphere of approximately _____ percent oxygen, Nomex® ignites and burns vigorously. (S32)
A
- 31 percent
41
Q
- Ignition of PUF occurs at ____ F. Auto-ignition of PUF can occur at temperatures in the range of ____ F to ____F. (PUF = Polyurethane Foam) (S30)
A
- 698°, 797° to 833°
42
Q
- ** At normal ambient temperatures (68° F), materials can ignite and burn at oxygen concentrations as low as ___ percent. (S32)
A
- 15 percent
42
Q
- ** Typically, an atmosphere having less than _____ percent oxygen is considered oxygen-deficient and presents a hazard to persons not wearing respiratory protection, such as SCBA. (S32)
A
- 19.5 percent
43
Q
- Methane FR = ___%-___%
A
- Methane FR = 5%-15%
44
Q
- Propane FR = ___% - ___%
A
- Propane FR = 2.1% - 9.5%
45
Q
- Carbon Monoxide FR = ___% -___%
A
- Carbon Monoxide FR = 12% -75%
46
Q
- Gasoline FR = ___% - ___%
A
- Gasoline FR = 1.4% - 7.4%
47
Q
- Ethanol FR = ___% - ___%
A
- Ethanol FR = 3.3% - 19%
48
Q
- Diesel FR = ___% - ___%
A
- Diesel FR = 1.3% - 6%
49
Q
- Methanol FR = ___% - ___%
A
- Methanol FR = 6% - 35.5%
50
Q
- The self-sustained chemical reaction involved in flaming combustion is complex. As flaming combustion occurs, the molecules of a fuel gas and oxygen (O2) break apart to form ________________ (electrically charged, highly reactive parts of molecules). (S33)
A
- free radicals
51
Q
The hot gases in the plume rise until they encounter the compartment ceiling and then spread horizontally. This flow of fire gases is the____________. (S36)
A
- ceiling jet
52
Q
- ** A visual indicator that a fire is leaving the incipient stage is flame height. When flames reach ____ ft high, radiated heat begins to transfer more heat than convection.(S36)
A
- 2.5 feet high
53
Q
- When the fuel package is not in the middle of the room, the _________________(the area where air is available to feed the fire) expands vertically, and a higher plume results. (S37)
A
- combustion zone
54
Q
- Once the ceiling jet reaches the walls of the fire compartment, the _________ begins to develop. __________________ is the tendency of gases to form into layers according to temperature, gas density, and pressure. (S38)
A
- hot gas layer, Thermal layering
55
Q
- Changes in ventilation and _____________ can significantly alter thermal layering. (S38)
A
- flow path
56
Q
- The appearance of isolated flames is sometimes an immediate indicator of___________________. (S39)
A
- flashover
57
Q
- ** As flashover occurs, the gas temperatures in the room reach ________° F or higher. (S42)
A
- 1,100 degrees
58
Q
- ** During flashover, the volume of burning gases can increase from approximately ____ to _____ of the room’s upper volume to fill the entire volume and extend out of any openings. (S42)
A
- ¼ to ½ of the rooms upper volume
59
Q
- ** NOTE: The autoignition temperature of CO, the most abundant fuel gas created in most fires, is approximately _________ ° F. (S43)
A
- 1,100 degrees
60
Q
- Survival rates for firefighters are extremely low in a flashover. At the floor level, a heat flux of approximately _____ kW/m2 is also typical of rollover conditions at the start of the flashover. Once flames affect a surface, the heat flux could range from ____ to ____ kW/m2. For frame of reference on heat flux, consider that NIST testing conducted in 2013 has shown that SCBA facepieces begin to fail after ______ minutes of exposure to a heat flux of ______ kW/m2. (S43)
A
- 20 kW/m2, 60 to 200 kW/m2, five minutes, 15 kW/m2
61
Q
- The ___________________stage occurs when the fire’s HRR has peaked because of a lack of either fuel or oxygen. (S46)
A
- fully developed
62
Q
- Firefighters working in the exhaust portion of the flow path will feel the temperature rise as the velocity and/or turbulence increases, causing increased_______________________________. ________________________________ is a similar phenomenon to wind chill, except energy transfers from a hot fluid (gas) to a solid surface (PPE). (S50)
A
- convective heat transfer, Convective heat transfer
63
Q
- ** WARNING: Wind-driven conditions can occur in any type of structure. Wind speeds as low as ___ mph can create wind-driven fire conditions. (S52)
A
- 10 mph
64
Q
- Any open space with no complete, dividing fire barrier is considered a______________. (S58)
A
- compartment
65
Q
- ** In single-family residential structures, the square footage of houses increased over ____ percent between 1973 and 2008. (S58)
A
- 150 percent
66
Q
- ** For steel trusses, _____° F is the critical temperature of steel — the temperature at which steel begins to weaken. (S60)
A
- 1000 degrees
67
Q
- An arched or curved outline often indicates a ______________roof. * Before 1960, the ________________ roof design was one of the most common design types for large commercial and industrial structures. (S61)
A
- bowstring truss, bowstring truss
68
Q
- Prefire surveys should provide information on hidden construction features and should be consulted during __________ and operations. (S61)
A
- size-up
69
Q
- Type I — _________________.
A
- Fire-resistive
70
Q
- Type II —____________________________.
A
- Noncombustible/limited combustible.
71
Q
- Type III — ________________.
A
- Ordinary.
72
Q
- Type IV — ________________.
A
- Heavy timber.
73
Q
- Type V — _________________.
A
- Wood frame.
74
Q
- ** In Type I construction, all structural members consist of _______________ materials with high fire-resistance ratings, unless exempted by the building code. (S72)
A
- Noncombustible
75
Q
- Type ___ constructions are composed of noncombustible or protected noncombustible materials. (S72)
A
- Type II
76
Q
- Non-wood materials used in Type IV construction must have a fire-resistance rating of at least_____________. (S74.)
A
- one hour
77
Q
- ______________is defined as solid, built-up, panelized, or engineered wood products having minimum dimensions as set forth by the code. (S74)
A
- Mass timber
78
Q
- Type IV construction materials now include___________________, an engineered wood product in which two or more pieces of timber are laminated together using durable adhesives. (S74)
A
- laminated timber
79
Q
- *In____________________________, the laminates layer with the grain to produce larger and longer members. (S74)
A
- glue-laminated timber (glulam)
80
Q
- *In________________________________, laminates are glued with the grain alternating at 90-degree angles for each layer. (S74)
A
- cross-laminated timber (CLT)
81
Q
- *________________, an assembly of two wood flanges connected by a wooden web, are used extensively in residential floor and roof framing. The web is made of 3/8-inch or 7/16-inch plywood. (S76)
A
- I-joists (Not I-Beam!)
82
Q
- Since 2012, the International Residential Code (IRC) has required that _______inch gypsum board or equivalent protection be provided on the underside of floor framing members less than 2 x 10 inches nominal or larger framing members. (S76)
A
- 1/2-inch
83
Q
- ** Since _______, manufactured homes must meet the Manufactured Home Construction and Safety Standards (HUD Code). (S77)
A
- 1976
84
Q
- The HUD Code requires ______________ homes to be constructed on a chassis. (S77)
A
Manufactured
85
Q
- _____________homes are also known as systems-built homes. Factory-built modules or sections are transported to and assembled at the housing site. (S77)
A
- Modular
86
Q
- Unlike manufactured homes, __________homes conform to the same state, local, or regional building codes as site-built homes. (S77)
A
- modular homes
87
Q
- ** Use of asbestos has decreased dramatically in the U.S. since the ______, but asbestos exposure is still a concern in older buildings.
A
- 1970s
88
Q
- In addition to a building’s construction type, information about the structure’s ________________________ enables firefighters to better deal with emergency incidents. (S77)
A
- interior arrangement
88
Q
- ** NFPA _______, Standard on Selection, Care, and Maintenance of Protective Ensembles for Structural Fire Fighting and Proximity Fire Fighting.
A
- NFPA 1851
89
Q
- ** Standard ceilings rise ___ to ___ feet and vaulted or cathedral ceilings may reach higher than ____ feet. (S78)
A
- 8 to 12 feet. 13 feet
90
Q
- Some open office floor plans subdivide by partitions into individual workstations or cubicles. These partitions generally stand __ to __ feet and may not be secured to the floor or to a permanent wall. (S78)
A
- 4 to 6 feet
91
Q
- ** Compartmentation is typical in _______ residential and commercial structures, office buildings, and schools. (S79)
A
- Pre-1980
92
Q
- A ______________or void is a nonoccupied area created by building construction. (S79)
A
- concealed space
93
Q
- Noncombustible materials and _______________ can help to reduce the fire hazard in concealed spaces.(S79)
A
- firestopping
94
Q
- __________________ provide a structure with passive insulation and sound barriers. They also provide paths for HVAC _____________ and other duct work. (S79)
A
- Concealed spaces, plenums