Matts Driver Bible TRUCK CO. 1st version Flashcards
1
Q
- Before ignition, a fuel has potential _________ energy. When that fuel burns, the chemical energy is converted to kinetic energy in the form of thermal energy (heat) and light. (T21)
A
- Chemical
2
Q
- _________________ is a measurement of kinetic energy. (T21)
A
- Temperature
3
Q
- _____ is the movement of thermal energy from objects of higher temperature to those of lower temperature. (T21)
A
- Heat
4
Q
- In the metric system used in technical literature, the Canadian fire service, and most of the rest of the world, _______ are the unit of measure for heat energy. (T22)
A
- Joules
5
Q
- _______________— Unit of work or energy in the International System of Units; the energy (or work) when unit force (1 newton) moves a body through a unit distance (1 meter); takes the place of calorie for heat measurement (1 calorie =______ ). (T22)
A
- Joule (J). 4.19 J
6
Q
- It takes ________ joules to raise the temperature of one kilogram (kg) of water one degree Celsius. (T22)
A
- 4,186 joules
7
Q
- The U.S. fire service uses the customary system in which the unit of measure for heat energy is the_________________. (T22)
A
- British thermal unit (Btu)
8
Q
- One Btu is the amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. By comparison, 1 Btu equals approximately _________ joules. (T22)
A
- 1,100 joules
9
Q
- British Thermal Unit (Btu) — Amount of heat energy required to raise the temperature of one pound of water one degree Fahrenheit. One Btu = _________kilo joules (kJ). (T22)
A
- 1.055 kilo joules
10
Q
- The _________________ of any fuel determines its heat of combustion and has a significant influence on its energy or heat release rate (HRR). (T23)
A
- chemical content
11
Q
- ** ___________________is usually expressed in either kilojoules/gram (kJ/g) or megajoules/kilogram (MJ/kg). (T23)
A
- Heat of combustion
12
Q
- ___________________is thermal energy (heat) that could be generated by the combustion (oxidation) reaction if a fuel were completely burned. The _______________ is measured in British Thermal Units (Btu) per pound or calories per gram. (T23)
A
- Heat of combustion. Heat of combustion
13
Q
- ________________________has a direct impact on the flow rate necessary for fire control and on whether a compartment fire will reach flashover. (T24)
A
- Heat release rate (HRR)
14
Q
- _____ is the energy released per unit of time as a given fuel burns. This is usually expressed in kilowatts (kW) or megawatts (MW). HRR is dependent on the type, quantity, and orientation of the fuel. (T24)
A
- HRR
15
Q
- As smoke begins to accumulate in the compartment, it does so in a manner called_______________. _______________is the tendency of gases to stratify according to temperature. Other terms sometimes used to describe this tendency are heat stratification and thermal balance. (T26)
A
- thermal layering, Thermal layering
16
Q
- ** The ceiling temperature approaches _____________°F during a rollover and the heat being radiated to the floor may be sufficient to ignite ordinary materials such as newspaper.
A
- 1,100 degrees
17
Q
- ** If the concentration of flammable combustion and pyrolysis products is above the upper flammable limit, the temperature is above 1,100°F or another source of ignition is available, and ventilation is increased, a ____________ may occur. (T30)
A
- Back-draft
18
Q
- ____________________is the actual and potential ventilation of a structure based on structural openings, construction type, and building ventilation systems. (T34)
A
- Existing ventilation
19
Q
- When a fire starts, ___________________conditions dictate the actual exchange of products of combustion inside the building or compartment with outside air. (T34)
A
- existing ventilation
20
Q
- Responsibility for size-up and risk assessment is not limited to fire officers. Everyone on the fireground needs to develop and maintain a high level of situational awareness. One element of situational awareness is recognition of key_________________________. (T36)
A
- fire behavior indicators
21
Q
- Building features are indicators of potential fire behavior prior to ignition. During pre-incident planning surveys, firefighters should practice __________________under nonfire conditions to identify critical characteristics that are likely to influence fire behavior and structural stability under fire conditions. (T37)
A
- reading the building
22
Q
- The first of the critical building features is_______________. The type of building involved influences both fire behavior and structural stability under fire conditions. (T37)
A
- construction type
23
Q
- _______ refers to the movement of air toward burning fuel and the movement of smoke out of the compartment. (T40)
A
- Airflow
24
Q
- Nearing flashover, ________________becomes the dominant method of heat transfer, and the heat flux is sufficient to quickly raise the temperature of the fuel packages in the compartment to their ignition temperature. (T48)
A
- radiant heat
25
Q
- NFPA _______ prohibits the use of fuel such as polyurethane mattresses and requires removal of synthetic carpeting and pad due to the high heat of combustion and heat release rate of these types of materials. (T48) (NFPA ______ Standard on Live Fire Training Evolutions.)
A
- NFPA 1403
26
Q
- Unlike ghosting or rollover, a ________________ involves ignition of a mixture of air and flammable combustion products that are already within the flammable range. (T54)
A
- smoke explosion
27
Q
- It is important to understand the ________________ related to extreme fire behavior such as flashover, backdraft, and smoke explosions. (T55)
A
- initiating events
28
Q
- The ___________________________________ were developed after reviewing a number of risk management models currently being used in the fire service. The three most prominent models considered were those developed by the Phoenix (AZ) Fire Department, NFPA® 1500, and the Ten Rules of Engagement for Structural Fire Fighting developed by the International Association of Fire Chiefs (IAFC). (T63)
A
- IFSTA Principles of Risk Management
29
Q
- Adapted from the British fire service, _________________________can be defined as: 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. (T63)
A
- Dynamic Risk Assessment
30
Q
- The _______________ of the Dynamic Risk Assessment model has two equally important components: organizational responsibilities and individual responsibilities.
A
- safe person element
31
Q
- A blue-ribbon committee of the International Association of Fire Chiefs studied a safety system that has been adopted by several industries and the U.S. military. The committee concluded that if the system were adopted by the fire service, the number of firefighter injuries and fatalities could be reduced. This comprehensive program is called______________________________. (T64)
A
- Crew Resource Management (CRM)
32
Q
- Heavy fire—no progress after _______minutes in wood or ordinary construction. (T70)
A
- 10-12 minutes
33
Q
- To help reduce the risk of firefighters being inside a burning building when it collapses, it is standard operating procedure in many departments to keep track of the elapsed time after the beginning of the initial attack. For example, in some departments the IC notifies dispatch when the initial attack begins, and dispatch announces the elapsed time at specified intervals — perhaps every _____ minutes. (T71)
A
- 5 minutes
34
Q
- If significant progress toward control and extinguishment has not been achieved after a specified number minutes, all interior crews are ordered out, the attack mode is changed from offensive to defensive, and a personnel accountability report (PAR) is ordered. Some departments that had previously established _____ minutes as the SOP for ordering all interior crews out have reduced that time significantly based on past experiences. (T71)
A
- 20 minutes
35
Q
- Incident Management System = System described in NFPA ________, Standard on Fire Department Incident Management System, that defines the roles, responsibilities, and standard operating procedures used to manage emergency operations. Such systems may also be referred to as Incident Command Systems (ICS). (T71)
A
- NFPA 1561
36
Q
- ________________________= System by which facilities, equipment, personnel, procedures, and communications are organized to operate within a common organizational structure designed to aid in the management of resources at emergency incidents. (T71)
A
- Incident Command System (ICS)
37
Q
- ** The use of an ____________________is required by NFPA® 1500, Fire Department Occupational Safety and Health Program, and NFPA® 1561, Standard on Emergency Services Incident Management System. (T73)
A
- Accountability system
38
Q
- _______________= A magnesium silicate mineral that occurs as slender, strong flexible fibers. Breathing of _________dust causes __________and lung cancer. (T74)
A
- Asbestos, asbestos, asbestiosis
39
Q
- _______________ = Colorless, odorless gas. Inhalation of _____________________ causes headache, dizziness, weakness, confusion, nausea, unconsciousness, and death. Exposure to as little as 0.2% _________________ can result in unconsciousness within 30 minutes. Inhalation of high concentration can result in immediate collapse and unconsciousness. (T74)
A
- Carbon Monoxide
40
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 track and serious injury. Exposure to high concentrations can cause injury to the skin. ________________ is a suspected carcinogen.(T74)
A
- Formaldehyde
41
Q
- _________________ = Reddish brown gas or yellowish-brown liquid, which is highly toxic and corrosive. (T74)
A
- Nitrogen dioxide
42
Q
- _______________ = Small particles that can be inhaled and be deposited in the mouth, trachea, or the lungs. Exposure to ______________ can cause eye irritation, respiratory distress (in addition to health hazards specifically related to the particular substances involved).
A
- Particulates
43
Q
- _______________ = Colorless gas with a choking or suffocating odor. __________ is toxic and corrosive and can irritate the eyes and mucous membranes. (T74)
A
- Sulfur dioxide
44
Q
- A timely and accurate initial size-up, followed by a succession of subsequent assessments of the fireground situation, are critical safety elements. These practices are sometimes called_________________________ . (T74)
A
- Dynamic Risk Assessment
45
Q
- ** While two firefighters may be sufficient to locate a firefighter in distress, it may take a _______________ firefighters to effect the rescue. (T80)
A
- A dozen or more
46
Q
- ** Removing the wall between any two adjacent studs will only create an opening approximately ____ inches wide. (T86)
A
- 14 inches wide
47
Q
- Historically, the work that has come to be known as _______________ at structure fires was originally done by civilian salvage crews hired by fire insurance companies. (T93)
A
- loss control
48
Q
- _____________________can make firefighters more likely to miss subtle danger signs in the damaged structure such as creaking, cracking, or other sounds that might otherwise alert them to an impending structural collapse. __________________ reduces strength and coordination and slows reflexes — all of which increase the likelihood of injury while operating tools and equipment. _________ could make the firefighters less capable of reacting to and escaping from any dangerous situation that might suddenly develop. (T102)
A
- Mental exhaustion, Physical exhaustion, Fatigue
49
Q
- ____________________— a colorless but very pungent and irritating gas given off in the thermal decomposition of materials containing chlorine such as polyvinyl chloride (PVC) and other plastics. (T104)
A
- Hydrogen chloride (HCl)
50
Q
- ____________________— a strong respiratory irritant produced when polyethylene is heated and when items containing cellulose, such as wood and other natural materials smolder. It is used in the manufacture of pharmaceuticals, herbicides, and tear gas. (T104)
A
- Acrolein (CH2=CHCHO)
51
Q
- ____________________— a colorless gas with a characteristic almond odor. Twenty times more toxic than CO, it is an asphyxiant and can be absorbed through the skin. _____ is produced in the combustion of natural materials, such as wool and silk, which contain nitrogen. It is also produced when polyurethane foam and other plastics that contain urea burn. The concentrated bulk chemical is also used in electroplating.(T104)
A
- Hydrogen cyanide (HCN)
52
Q
- ____________________— a colorless, odorless, and nonflammable gas produced in free-burning fires. While it is nontoxic, ____ can asphyxiate by excluding the oxygen from a confined space. It is also a respiratory accelerant that can increase the intake of other toxic gases. (T104)
A
- Carbon dioxide (CO2)
53
Q
- _____________________— two toxic and dangerous gases liberated in the combustion of pyroxylin plastics. Because ____________readily converts to ________________in the presence of oxygen and moisture, _______________ is the substance of most concern to firefighters. _______________is a pulmonary irritant that can also have a delayed systemic effect. The vapors and smoke from the _______________have a reddish brown or copper color. (T104)
A
- Nitrogen oxides (NO and NO2), nitric oxide (NO), nitrogen dioxide (NO2), nitrogen dioxide (NO2), oxides of nitrogen
54
Q
- _____________________— a highly toxic, colorless gas with a disagreeable odor of musty hay. It may be produced when refrigerants, such as Freon, contact flame. ________ can be expected in fires in cold-storage facilities or in fires involving heavy-duty HVAC systems. It is a strong pulmonary irritant, the full harmful effect of which is not evident for several hours after exposure. (T104)
A
- Phosgene (CCl2O), phosgene
55
Q
- If there are sufficient on-scene resources, firefighters should start salvage operations on the floor _______________as soon it is safe to do so.(T109)
A
- Below the fire
56
Q
- ______________________________is a free publication from the U.S. Fire Administration and is a good resource for those who have suffered a fire loss. (T117)
A
- After the Fire! Returning to Normal
57
Q
- ** To ensure that ladders are safe to use when needed, firefighters must follow the maintenance procedures recommended by the ladder manufacturer, as prescribed in departmental SOPs, and as specified in NFPA _____, Standard on Use, Maintenance, and Service Testing of In-Service Fire Department Ground Ladders. (T125)
A
- NFPA 1932
58
Q
- The _________________ of a ladder is always shorter than its actual length because of the safe climbing and working angle. (T125)
A
- effective length
59
Q
- ** As discussed in Essentials, the ideal climbing angle for ground ladders is____ degrees from horizontal. (T125)
A
- 75 degrees from horizontal
60
Q
- ** At angles less than _____ degrees, the distance between personnel on the ladder should be increased. (T125)
A
- Less than 75 degrees
61
Q
- The __________________of a ladder in position is the vertical distance above the ground where the ladder contacts the building — not the full length of the ladder. (T126)
A
- used length
62
Q
- The ladder selected must not only be long enough to reach the objective at a safe climbing angle, but must also extend ______ to _______ above any parapet or roof eave. (T126)
A
- three to five rungs
63
Q
- ______________________is needed when raising and extending ladders. (T127)
A
- Hand/eye coordination
64
Q
- _____________________is critical when calculating required ladder length and when positioning ladders. (T127)
A
- Depth perception
65
Q
- Any firefighter fitness program should meet the requirements of the applicable NFPA® standards. ** The most relevant fitness related standards are NFPA______, Standard on Fire Department Occupational Safety and Health Program and NFPA _______, Standard on Health-Related Fitness Programs for Fire Department Members.
A
- NFPA 1500. NFPA 1583
66
Q
- ** A minimum of _____ firefighters are required to raise a pole ladder, but adding a fifth or sixth firefighter to the team increases both safety and efficiency.
A
- Four
67
Q
- ** If the window opening is wide enough to permit the ladder tip to project into it and still allow room beside it to facilitate entry/exit and rescue, the ladder can be placed so that it extends ____ or _____ rungs into the window opening. (T135)
A
- Two or three rungs
68
Q
- In the absence of an aerial device, ground ladders are the primary means of gaining access to the roof of structures up to _______ stories in height. (T139)
A
- Four stories in height
69
Q
- ** If the gap between the buildings is not more than ________ its length, a single ladder can be laid on the roof of one building and the tip simply slid over to the other building. (T142)
A
- One-third
70
Q
- ** Size-up for a structure fire incident typically starts with the ______________. (T152)
A
- Initial dispatch
71
Q
- Because of differences in response times and differences in occupant loads, the need for laddering buildings and conducting search and rescue operations may increase or decrease because of the ______________________. (T153)
A
- day of the week
72
Q
- From the standpoint of truck company operations, the size-up recommended by the ______________________________________________is a reasonably good model. (T156)
A
- National Institute for Occupational Safety and Health (NIOSH)
73
Q
- Frequent _____________ are the best way for firefighters to become familiar with the characteristics of the buildings in their response districts and to keep that knowledge current. (T162)
A
- surveys
74
Q
- ** Both residential and commercial buildings constructed before the middle of the twentieth century commonly had high ceilings, some _____ feet or more, but many of them have since had dropped (false) ceilings installed during renovation. (T162)
A
- 10 feet or more
75
Q
- ** If a firefighter crawling on the floor of a smoke-filled Victorian-style residence can touch the ceiling with a ___-foot pike pole, there is probably a false ceiling in that room. (T162)
A
- 6-foot pike pole
76
Q
- ** A recent trend in residential construction in North America has been the emergence of extremely large dwellings compared to those built in the middle to late twentieth century. These single-family residences are commonly between ________ and _______ square feet, and some even larger. (T162)
A
- 5,000 to10,000
77
Q
- The main control valve on heavy-duty gas meters may simply be a larger version of the ____________________________common to residential and light commercial buildings. (T179)
A
- quarter-turn crossbar valve
78
Q
- ** Evacuations should be made at least ___ mile away from a LPG tank that has the potential for BLEVE. (T182)
A
- At least ½ mile
79
Q
- Some industrial heaters or boilers use steam or air atomizers, but most residential units use mechanical atomizers. Considering that the oil pressure required for maximum efficiency ranges from _______ to ________ psi, any of these systems may be dangerous to firefighters who are unfamiliar with them. (T184)
A
- 600 to 1000 psi
80
Q
- ** The DOT ERG 2008 recommends staging anywhere from ____ to ___ feet from the source of both LPG and natural gas leaks. (T185)
A
- 160 to 330 feet
81
Q
- ** Since the LEL for natural gas is ____ percent (50,000 ppm), many fire departments establish the perimeter at ____ percent of that figure — 0.5 percent (5,000 ppm). However, because the lower explosive limit for propane is 1.5 percent (15,000 ppm), any reading above 0.15 percent (1500 ppm) may be too dangerous, and it may be advisable to locate control points where readings indicate a lower concentration. (T186)
A
- 5 percent. 10 percent
82
Q
- A common error is to establish a perimeter that is too small. As described in Essentials, the recommended isolation distance is that equal to _________________ between the adjacent poles or towers in all directions from a break in a wire or the point of contact with the ground. (T193)
A
- one full span
83
Q
- When power from the normal utility source fails, some emergency generators may start automatically. If these units are not disconnected from the system, the power lines can be reenergized with ______ volts from the generators. (T195)
A
- 240 volts
84
Q
- ** If extinguishing a fire on an upper floor of a 50 × 100-foot building results in 6 inches of water accumulating on the floor, the total weight of that water exceeds ____ tons (68 t). (T195)
A
- 75 tons