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58 Cards in this Set
- Front
- Back
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The transfer of heat from one end of an iron bar to another is an example of A, radiation B, convection C, reaction D, conduction |
D, conduction |
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The products of combustion are heat, light, fire gases and A, smoke B, flammable liquids C, oxygen D, flammable solids |
A, smoke |
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The fire tetrahedron includes the heat, fuel and oxygen from the fire triangle and one other ingredient, which is A, polymers B, chemical reaction C, carbon dioxide D, light |
B, chemical reaction |
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A 4-inch hoseline carried on a fire appliance is used as A, a water thief B, an attack line C, a supply line D, a booster line |
C, a supply line |
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Which firestream is most effective in a direct fire attack on free-burning fires A, a wide angle fog pattern and the base of the fire B, a 30 degree for pattern and above the fire C, a solid or straight stream directed at the base of the fire D, a solid stream directed at superheated areas above the fire |
C, a solid or straight stream directed at the base of the fire |
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What is the most common form of energy on earth
A, nuclear B, mechanical C, light D, heat |
D, heat |
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A room area becomes heated to the point where flames suddenly envelope over all exposed combustible surfaces. What do we call this?
A, backdraft B, Flashover C, heat flow D, Radiation |
B, flashover |
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The primary advantage of an automatic nozzle is that it maintains a, A, constant gallonage B, single pattern C, constant nozzle pressure D, constant gallonage and nozzle pressure |
C, constant nozzle pressure |
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An important philosophy behind "loss control" is A, customer service B, fire extinguishment C, water supply D, fire course and investigation |
A, customer service |
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What is the normal concentration of oxygen in the earth's atmosphere A, 48 % B, 25 % C, 18 % D, 21% |
D, 21% |
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Which attack method describes the penciling and painting of water application in a confined fire environment? A, combination method B, direct method C, oblique method D, indirect method |
A, combination method |
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How does increasing the concentration of oxygen affect the combustion process A, speeds up the burning process B, no effect on the burning process C, slows down at the burning process D, stops the burning process completely |
A, speed up the burning process |
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What is ventilation?
A, the systematic removal of heat, smoke and gases from an enclosed area B, the removal of smoke and gases from an enclosed area through undetermined paths, C, the cooling of combustible gases in below their flash points D, the act of gaining access to a secured buildings or area |
A, The systematic removal of heat, smoke and gases from an enclosed area |
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As you enter a burning building, you see flames moving across the ceiling within the smoke layer. What is this condition known as? A, flashback B, Thermal layering C, Backdraft D, rollover |
D, rollover |
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The tendency of combustion gases to form into layers according to temperature we call A, thermal layering B, thermal evaporation C, thermal plume D, stacking |
A, thermal layering |
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The self-sustaining oxidisation accompanied by the evolution of heat and light of varying intensities we define as A, decomposition B, fire C, reduction, D, energy |
B, fire |
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After water leaves a nozzle and until it reaches the desired point, we call it a, A, fire flow B, water curtain C, fire stream D, break over |
C, fire stream |
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A fire is in the free burning stage. It is fully involved with a supply of air and the products of combustion are being carried away. This condition describes which stage of the fire.
A, clear burning B, fully developed C, flame spread D, flash over |
B, fully developed |
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What does a liquid with a specific gravity of 0.9 do when you place it in water A, react violently B, float C, mix readily D, sink |
B, float |
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A self-sustaining chemical reaction that produces energy or products that cause further reactions of the same type is. A, fire B, oxidisation C, calorie D, combustion |
D, combustion |
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Except on apparatus mounted deck guns, it usually takes how many firefighters to deploy a master stream device A, four B, two C, one D, three |
B, two |
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Heavy fire loading is one of the most critical aspects influencing firefighter access to a commercial and storage facilities. What is the most effective defence against this Hazard? A, streaming local, state, and federal requirements in building codes B, heavy fines and penalties C, proper inspection and code enforcement D, public awareness and mandatory attendance by all personnel concerned |
C, proper inspection and code enforcement |
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According to NFPA standard 1983, standard for Life safety rope and equipment for emergency services, a ladder belt A, is rated as a life safety harness B, allows for exceeding of the rated weight capacity of a ladder C, is not rated as a life safety harness D, is the only acceptable means of securing oneself to a ladder |
C, is not rated as a life safety harness |
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The side of the building the wind is striking is, A, top of the structure B, windward C, leeward D, vertical of the structure |
B, windward |
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The thermal layering or balance of a compartment fire can be disrupted during fire control activities by, A, apply water to the base of the fire, B, applying water to the upper thermal layer C, horizontal ventilation D, vertical ventilation |
B, Applying water to the thermal layer. |
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The best way to reduce the potential for backdraft explosion is by
A, horizontal ventilation B, forcing doors C, breaking windows D, vertical ventilation
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D, vertical ventilation |
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Skip sheathing is commonly seen in what type of roofs A, pitched B, Flat C, metal D, arched |
A, pitched |
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Type lll construction is also known as A, wood frame construction B, ordinary construction C, fire-resistive construction D, heavy timber construction |
B, ordinary construction |
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Trench ventilation is used to stop the spread of fire in what type of structures A, long, wide structure B, long, narrow structure C, any narrow or wide, short structure D, arched or pitched roof structure |
A, long, wide structure |
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A collapse zone surrounding a building is equal to A, the length of the building B, length multiplied by the width of the building. C, one half of the height of the building D, one-and-a-half times the height of the building |
D, one-and-a-half times the height of the building. |
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What form of heat energy is generated by compression. A, mechanical B, nuclear C, Chemical D, Electrical |
A, mechanical |
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When advancing hose up a stairway and when no visible flames are spotted, firefighters should.
A, attempt to make access for an upper floor window first B, advance the hose line up the stairs uncharged when conditions allow C, advance the hose line discharging water in a fog stream pattern D, advanced the hoseline discharging water and a solid stream pattern |
B, advance the hose line up the stairs uncharged when conditions allow |
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We usually attack buildings fires from. A, the burned side B, above side C, the outside of the structure D, the unburned side. |
D, the unburned side |
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What time describes the sudden explosive ignition of super heated gases due to the admittance of oxygen. A, flashover B, flameover C, backdraft D, Flashback. |
C, backdraft |
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At a fire scene, you observe very little visible fire and heavy smoke coming from the building in puffs. What condition is possible? A, Backdraft B, Rollover C, Flashover D, Flashback |
A, Backdraft |
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The three physical states of matter in which fuels are commonly found are. A, solids, liquids and fuels B, liquids, gases and solids C, liquids, solids and chemicals D, matter, liquid and gases |
B, liquids, gases and solids |
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Fire is an example of A, inorganic reaction B, explosive reaction C, endothermic reaction D, exothermic reaction |
D, exothermic reaction |
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A precaution you must take to prevent upsetting horizontal ventilation is to ensure that A, the vertical ventilation openings established in the roof are used to apply water B, doors on the windward side are opened first C, the established ventilation entrances/exits are not blocked D, doors on the leeward side are opened last |
C, the established ventilation entrances/exits are not blocked |
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Basement fire ventilation is best accomplished what way when no horizontal windows are present A, By cutting a hole in the ground level flooring B, through natural pathways like stairwells and hoistway shafts C, Hydraulic ventilation D, positive ventilation |
B, through natural pathways like stairwells and hoistway shafts |
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When assisting an unconscious victim down a ladder, the victims limbs should be placed A, outside the rails B, around the firefighters neck C, inside their clothes D, around the firefighters waste |
A, outside the rails |
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Which is an advantage of selecting a straight stream attack on a compartment fire? A, rapid steam protection B, produces the least disturbance of the thermal layering C, protection of firefighters from radiated heat D, those lines more easily kinked at corners and instructions |
B, produces the least disturbance of the thermal layering |
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All of the following statements concerning exposure to heated air are true except. A, tissue damage is immediately reversible by introducing fresh, cool air B, it can damage the respiratory tract C, it can cause dehydration D, it can result in burns or heat exhaustion |
A, tissue damage is immediately reversible by introducing fresh, cool air |
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Heat can travel when matter does not exist this form of he transfer we know as A, conduction B, reaction C, convection D, radiation |
D, radiation |
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What signs indicate to the firefighter that an indirect attack on a structure fire is effective. A, steam generation B, flames C, heat D, smoke generation |
A, steam generation |
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When utilising hydraulic methods for forced ventilation, the nozzle tip should be 2-ft from the opening and cover A, 35-40% B, 70-75% C, 20-25% D, 85-90% |
D, 85-90% |
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Lightweight metal and wooden trusses have been shown to collapse after what period of exposure to fire? A, five to ten minutes B, one minute C, three to five minutes D, ten to fifteen minutes |
A, five to ten minutes |
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A British thermal unit (BTU) is defined as the amount of heat required to raise one
A, litre of water by one degrees centigrade B, pound of water one degrees centigrade C, a litre of water one degree fahrenheit D, pound of water one degree fahrenheit |
D, pound of water one degree fahrenheit |
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Which statement is true concerning operation of host streams near a vertical vent hole? A, when there is potential for backdraft explosion B, only when fire exists the opening C direct the stream slightly above the horizontal plane D, direct stream directly down through the opening when you see fire |
B, only when fire exists the opening |
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When cutting through a roof, the size of the hole that we generally cut for ventilation is at least A, 2x2 feet B, as large as possible C, 4x4 feet D, 8x8 feet |
C, 4x4 feet |
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What determines the size of a room fire in the fully developed stage? A, fuel B, chemical reaction C, temperature D, oxygen |
D, oxygen |
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All of the following are strengths of type v construction except. A, collapse debris relatively easy to manage B, resistant to water damage, C, easily breached for access, ventilation or escape D, resistant to collapse from earthquakes due to lightweight |
B, resistant to water damage, |
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For convenience of handling and replacement, hose lengths are usually cut and coupled in lengths of. A, 50 to 100 feet B, 100 to 150 feet C, 75 to 100 feet D, 25 to 50 feet |
A, 50 to 100 feet |
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When water is converted to steam, it expands to possibly how many times its volume? A, 600 B, 1000 C, 2000 D, 1700 |
D, 1700 |
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What type of heat energy is spontaneous heating. A, Chemical B, Mechanical C, Nuclear D, Electric |
A, Chemical |
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Normally, we place the first line on the fire. A, Where it will provide the greatest property conservationB, to protect interiorC, to protect exposuresD, between potential victims and the fire. |
D, between potential victims and the fire. |
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Trapped heat, smoke, and fire gases accumulates and banks down, spreading horizontally to uninvolved areas of the structure, this is known as? A, Flashover B, chimney effect C, mushrooming D, backdraft |
C, mushrooming |
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One of the dangers present when performing ventilation is that? A, ventilation courses more damage to the structure B, it may increase the density of the smoke C, it may increase the intensity/spread of the fire D, ventilation causes greatest difficulty in overhaul efforts. |
C, it may increase the intensity/spread of the fire |
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Which of the following is not a method of fire attack. A, direct B, "rain drop" effect C, indirect D, combination |
B, "rain drop" effect |
