NCFD Final
What are the four main uses of a master stream device? (1028)
1) Direct fire attack 2) Indirect fire attack 3) Supplement already attacking lines 4)Provide exposure protection
What factors contribute to basement fires? (1017-18)
1) Fire can spread before its found 2) Metal grids or lightweight construction make collapse likely 3)Fuel loading above basement floor 4) Hidden paths for fire exposure
What are five of the factors that affect fire development? (234-235)
1) Fuel Type 2) Availability and Location of Fuel 3) Compartment Volume 4) Ventilation 5) Fuel Load
List five causes of ground cover fires. (1049)
1) Lightning Strikes 2) Autoignition 3) Arson 4) Campfires 5) Sparks from machinery
List three guidelines for electrical emergencies. (1035-36)
1) Make exclusion zone equal to distance between power poles in all directions from downed lines 2)Be aware that a short circuit may have weakened other wires 3) Wear full PPE and only use approved tools
List five pre-entry considerations that are critical to firefighter safety and effectiveness. (1012)
1) Reading fire behavior 2) Identify escape routes 3) Identify Hazards 4) Ensure BA is on, full and works 5) Verify radios work and are on right channel
Air-purifying respirators (APRs) are classified in three categories of filter degradation: N, R, and P. (294) A. True B. False
A
All energy can change from one type to another. (209) A. True B. False
A
Before entry into an immediately dangerous to life and health area, firefighters should be aware of alternate means of egress. (428) A. True B. False
A
Buildings are composed of the same components, all of which can prevent or contribute to fire growth. (157) A. True B. False
A
Class D fires: (1037) A. are reactive to water. B. involve electrical equipment. C. involve stacked and piled materials D. are easily extinguished with water or foam.
A
Cutting around a lock is another way to open a resisting door. (599) A. True B. False
A
Firefighters use knowledge of building floor plans to conduct effective structural searches. (422) A. True B. False
A
Ground cover fires are dangerous because which two elements of the fire triangle are always present? (1051) A. Oxygen and fuel B. Heat and oxygen C. Ignition source and fuel D. Heat and ignition source
A
If there is a possibility of extreme fire behavior, a firefighter should not attempt entry until coordinated fire control and ventilation is implemented. (426) A. True B. False
A
In ambient temperatures (about 68°F [20°C]), materials can ignite at oxygen concentrations as low as 14 percent. (231) A. True B. False
A
No single forcible entry tool handles all situations. (591) A. True B. False
A
Nontraditional types of locks provide a higher level of security. (575) A. True B. False
A
Ovens, cook tops, and electrical appliances are all examples of: (1155) A. ignition sources. B. evidence of arson. C. natural fire sources. D. exterior fire causes
A
Overhaul operations can be detrimental to the fire cause investigation. (1162) A. True B. False
A
Portable fire extinguisher ratings are classified according to the types of fire for which they are intended. (351) A. True B. False
A
Searching for the area of origin and cause of a structure fire is similar to vehicle fires. (1150) A. True B. False
A
Security barriers block escape routes for both firefighters and occupants. (575) A. True B. False
A
Size and moisture content affect how wood reacts to fire. (134) A. True B. False
A
Sufficient heat during flaming combustion causes fuel and oxygen to form: (234) A. free radicals and initiates a reaction. B. stable product and initiates a reaction. C. free radicals and interferes with a reaction. D. stable product and interferes with a reaction.
A
The area of origin may display unburned materials. (1150) A. True B. False
A
The general location where a fire began is called the: (1145) A. area of origin. B. point of origin. C. ignition source. D. chain of custody.
A
The inspection period for protective breathing apparatus is established by NFPA® 1852. (303) A. True B. False
A
Types of portable fire extinguishers are organized by the type of agent and method used to expel contents. (342) A. True B. False
A
When should water flow from a sprinkler be stopped? (1027) A. Once the fire has been brought under control B. As soon as the fire department arrives on scene C. Once master stream devices have been deployed D. After the fire department connection has been disconnected
A
Which of the NFPA® defined types of cleaning does not require removal from service? (278) A. Routine B. Contract C. Advanced D. Specialized
A
Which of the following construction types is considered to be the most collapse resistant? (144) A. Type I B. Type II C. Type IV D. Type V
A
Which of the following is a responsibility of all fire officers and firefighters at a fire scene? (1159) A. Preserving evidence B. Conducting investigation C. Cleaning up the structure D. Determining the point of origin
A
Which of the following is an emergency exit indicator? (313) A. SCBA failure B. Situation stabilized C. Assignment completed D. Changes in operational strategy
A
Which of the following nonemergency exit techniques requires using the same path to exit an IDLH environment as to enter? (315) A. Egress paths B. Buddy system C. Controlled breathing D. Accountability systems
A
Which of the following respiratory hazards targets the heart and brain? (285) A. Hydrogen cyanide B. Carbon monoxide C. Airborne pathogens D. Nonfire gases and vapors
A
Which of the following safety precautions taken when refilling SCBA prevents it from overheating? (307) A. Fill cylinder slowly B. Visually inspect for damage C. Don eye and hearing protection D. Ensure cylinder is completely full but not overpressurized
A
Which of the following should be done to prevent injury when using a saw? (592) A. Maintain situational awareness B. Keep blades dull to prevent chipping C. Use a combination of tools with saws D. Wear two pairs of gloves when operating
A
How should each of the following tools be carried to ensure safety? (593) Axe - Prying tool - Pike pole or hook - Striking tool - Power tool -
Axe - Blade away from body, grasp pick Prying tool - Pointed edge away from body Pike pole or hook - Head down and in front outside, head up inside Striking tool - Head of tool close to ground Power tool - Never more than 10 feet on, start tool at site, blade forward and toward ground
A physical change causes a change both chemically and in appearance. (208) A. True B. False
B
Atmosphere-supplying respirators (ASRs) only filter particulates out of ambient air. (287) A. True B. False
B
Empty SCBA cylinders should be kept with full cylinders. (311) A. True B. False
B
Gates should be pried or cut when forcing entry to cause less damage. (622-623) A. True B. False
B
Heated gypsum may crack and shatter when struck by a cold fire stream. (140) A. True B. False
B
Interior pocket doors can be forced with the same technique used for sliding doors. (601-602) A. True B. False
B
Interior walls are more difficult to breach than exterior walls. (616) A. True B. False
B
Maintenance for both fire department and privately owned portable fire extinguishers is based on NFPA® 10. (357) A. True B. False
B
Most portable fire extinguishers are operated in very different ways. (354) A. True B. False
B
Portable fire extinguishers are only classified by the type of extinguishing agent used. (340) A. True B. False
B
SCBA air supply duration depends only on physical conditioning. (313) A. True B. False
B
SCBA checks should be performed only once a week. (297) A. True B. False
B
The best entry point into a burning building is to force entry through windows. (609) A. True B. False
B
The incipient stage is when the fire begins to influence the compartment environment. (242-243) A. True B. False
B
The perimeter for explosions should be established at two times the distance from farthest piece of debris found. (1160) A. True B. False
B
The pumping mechanism for hydraulic prying tools can only be powered. (588) A. True B. False
B
To exit a building, turn in the same direction you entered a room. (428) A. True B. False
B
Ultimate responsibility for size-up rests with the first arriving officer on-scene. (425) A. True B. False
B
What type of fire attack produces large quantities of steam and must be coordinated with ventilation? (1014) A. Direct B. Indirect C. Offensive D. Defensive
B
When conducting a search after a structure fire, start inside the burned portion of the structure. (1147) A. True B. False
B
Which method used to attack ground cover fires is generally used against fires that are very hot, very big, and very fast? (1054) A. Direct B. Indirect C. Offensive D. Defensive
B
Which of the following BEST describes how understanding heat transfer can help firefighters? (219) A. It can help estimate the size of a fire after attack. B. It can help estimate the size of a fire before attack. C. It allows firefighters to look for rapid fire behaviors. D. It teaches firefighters how to avoid rapid fire behaviors.
B
Which of the following is the term used for two boards connected with long carriage bolts? (615) A. Shutters B. Strongbacks C. Hopper windows D. Security bars and grilles
B
Which of the following makes faster, rougher cuts when breaching a floor? (620) A. Axe B. Chain saw C. Rotary saw D. Cutting torch
B
Which of the following may indicate use of accelerants of intentionally disconnected gas lines? (1158) A. Fire pattern B. Heat intensity C. Location of the fire D. Fire protection system
B
Which of the following respiratory hazards is most commonly caused by combustion? (282) A. Gases and vapors B. Oxygen deficiency C. Airborne pathogens D. Particulate contaminants
B
Which of the following types of special protective clothing may be dual certified for emergency medical use? (274) A. Ice rescue B. Technical rescue C. Hazardous materials D. Proximity fire fighting
B
Which of the following typically stores materials, debris, trash, and rubbish? (1150) A. Interior fires B. Exterior fires C. Accidental fires D. Undetermined fires
B
Which part of a ground cover fire are the sides, roughly parallel to the main direction of fire spread? (1053) A. Heads B. Flanks C. Islands D. Fingers
B
A barbed wired fence should be cut with a (an): (621) A. axe. B. rotary saw. C. bolt cutter. D. cutting torch.
C
A vehicle fire should be attacked from a ___-degree angle. (1039) A. 15 B. 30 C. 45 D. 90
C
What fire behavior is the result of an increase in low-level ventilation prior to upper level ventilation? (248-249) A. Rollover B. Flashover C. Backdraft D. Smoke explosion
C
What is the most common source of heat in combustion reactions? (217) A. Radiant energy B. Electrical energy C. Chemical energy D. Mechanical energy
C
What part of a traditional wood-joisted roof tends to lose strength gradually when exposed to fire? (166) A. Webbing B. Parallel chord C. Solid wood joist D. Metal gusset plate
C
When performing forcible entry to open a door begin with: (597) A. sizing up windows in the structure. B. breaking window near a door to reach lock inside. C. minimum damage and proceed to maximum damage. D. maximum damage and proceed to minimum damage.
C
Which of the following common building materials performs well under fire conditions but can lose strength through spalling? (138) A. Gypsum B. Lath and plaster C. Reinforced concrete D. Composite material
C
Which of the following is a nonemergency exit indicator? (313) A. Changes in temperature B. Indications of new hazards C. Necessary to replace air cylinder D. Presence of APR/PAPR breakthrough symptoms
C
Which of the following is the most commonly used fire-suppression method? (250) A. Fuel removal B. Oxygen exclusion C. Temperature reduction D. Chemical flame inhibition
C
Which of the following wearer limitations for respiratory protection requires the user to have the ability to overcome stress and fear? (296) A. Lack of agility B. Unique facial features C. Psychological limitations D. Lack of physical condition
C
Noncombustible construction as defined by the National Building Code of Canada achieves fire safety by: (151) A. using fire-resistant materials. B. avoiding concealed spaces under floors and roofs. C. placing limitations on sizes of wood structural methods. D. using noncombustible materials for structural members and other building assemblies.
D
What building component supports only its own weight and may divide two areas within a structure? (160) A. Flat roof B. Pitched roof C. Load-bearing wall D. Non-load-bearing wall
D
What strategy is typically selected when property is not salvageable? (1006) A. Direct B. Indirect C. Offensive D. Defensive
D
What type of ground cover fire is the most common type and consumes low-lying grass, shrubs, and other vegetation? (1050) A. Crown fire B. Ladder fire C. Ground fire D. Surface fire
D
Which of the following construction types offers the appearance of Type III construction? (147) A. Type I B. Type II C. Type IV D. Type V
D
Which of the following equipment limitations of respiratory protection can result in minor leaks? (296) A. Decreased mobility B. Decreased endurance C. Low air cylinder pressure D. Poor condition of apparatus
D
Which of the following is MOST accurate about the care and maintenance of forcible entry tools? (593) A. Keep tools freshly painted B. Test tool design and function before use C. Continue using damaged tools, avoiding damaged areas D. Report damage to tools according to department procedures
D
Which of the following is a fire cause classification that may refer to a situation in which each component of the ignition sequence is not specifically identified? (1154-1155) A. Natural B. Accidental C. Incendiary D. Undetermined
D
Which of the following is a form of exterior exposure protection? (1022) A. Use passive forms, such as fire-rated walls and doors B. Use tactical ventilation to ensure that smoke movement is limited C. Close doors or other openings between the fire area and unaffected area D. Apply a protective spray of water or foam between the fire and exposures
D
Which of the following is not actively part of the combustion reaction represented by the fire tetrahedron? (212) A. Fuel B. Heat C. Oxygen D. Passive agents
D
Which of the following may have a key pad, card reader, or fingerprint activated screen? (579) A. Mortise locks B. Multiple bolt locks C. Tubular dead bolt locks D. Electronic keyless or digital locks
D
Which of the following types of protective clothing is designed to prevent heat transfer from fire to the body? (263) A. Technical rescue B. Emergency medical C. Roadway operations D. Structural fire fighting
D
What are the duties of an incident commander and/or a fire or criminal investigator during a fire investigation? (1146-1147)
Determination of: 1)Point of origin 2) Fire Cause 3) Protection and collection of evidence
Fires in electrical transformers are extremely rare. (1033) A. True B. False
False
Standard structural turnout clothing is appropriate for fighting ground cover fires. (1054) A. True B. False
False
What are the three physical states of fuel? (225)
Gaseous, Liquid, Solid
List the stages of fire development (not including rapid fire behavior). (234)
Ignition Growth Fully Developed Decay
What are the main differences between the two types of ignition? (210-212)
Piloted: Fuel + O2 encounter external heat source Autoignition: Occurs w/o any external heat source, hits Autoignition temp
What are the requirements for the two main types of occupancy classifications? (152)
Single Use: Must meet codes for intended use Separated Use: Can contain multiple occupancies, meets requirements for each individual occupancy
A nozzle tip that is too small will not deliver the volume of water required to extinguish the fire. (1011) A. True B. False
True
Elevators must not be used to transport fire crews to the fire floor. (1016) A. True B. False
True
The goal at a fire involving stacked and piled materials is to confine the fire to the pile or building of origin. (1047) A. True B. False
True
