Firefighter 2 Ch-15
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- 1.Which of the following is the agent most often used to extinguish structure fires?
- A.
Water
- B.
Foam
- C.
Dry Chemicals
- D.
Extinguishing powders
- 2.Which of the following is a factor in hoseline selection?
- A.
Number of Bystanders
- B.
Fire Load and material involved
- C.
Photographic oppurtunities with the fire
- D.
Whether Firefighters are career or volunteer
- 3.Which of the following is the LEAST likely factor to consider in hoseline selection?
- A.
Fire Conditions
- B.
Hoseline Color
- C.
Volume of water needed for extinguishment
- D.
Number of firefighters available for advancing hoselines
- 4.Which of the following nozzles can project water in a range of patterns?
- A.
Primary Nozzle
- B.
Solid-Stream Nozzle
- C.
Combination Nozzle
- D.
Multiple-use Nozzle
- 5.Which stream provides the greatest reach?
- A.
Solid Stream
- B.
Wide-angle fog stream
- C.
Narrow-angle straight stream
- D.
Medium-angle fog stream
- 6.Which of the following patterns can protect firefighters from radiant heat?
- A.
Straight and solid streams
- B.
Wide-angle fog stream
- C.
Narrow-angle fog stream
- D.
Medium-angle fog stream
- 7.Which pattern has limited capability for cooling hot gases?
- A.
Solid Stream
- B.
Wide-angle fog stream
- C.
Narrow-angle fog stream
- D.
Medium-angle fog stream
- 8.Which of the following factors dictate stream selection?
- A.
Water source and experience of firefighters
- B.
Value of the structure and number of firefighters
- C.
Number of bystanders and length of hoseline
- D.
Fire situation and capabilities of the nozzle being used
- 9.Converting water to steam is critical to:
- A.
Heat absorption
- B.
Heat Deflection
- C.
Stream angle
- D.
Stream temperature
- 10.Which of the following BEST describes Class B fires?
- A.
Those that involve ordinary combustibles
- B.
Those that involve combustible metals
- C.
Those that involve energized electrical equipment
- D.
Those that involve flammable and combustible liquids and gases
- 11.Which of the follwoing are liquids that have flash points higher than 100* F (38*C)?
- A.
Flammable liquids
- B.
Gaseous Liquids
- C.
Semi-solid liquids
- D.
Combustible liquids
- 12.Which of the following are flammable and combustible liquids that mix with water?
- A.
Hydrocarbons
- B.
Polarcarbons
- C.
Polar Solvents
- D.
Hydro Solvents
- 13.Which of the following would be a primary precaution to take when dealing with Class B fires?
- A.
Avoid directing hose streams onto the fire
- B.
Avoid using water to help control the fire
- C.
Avoid standing in pools of fuel or runoff water
- D.
Limit the number of personnel combating the fire
- 14.An increase in intensity of sound or fire issuing from a relief valve may indicate that a vessel is:
- A.
Operating normally
- B.
Starting to self-extinguish
- C.
Underheating and implosion is imminent
- D.
Overheating and rupture is imminent
- 15.Which of the following is the method most often used for controlling flammable liquid fires?
- A.
Applying foam
- B.
Applying CO2
- C.
Letting the fire burn out
- D.
Applying dry chemicals
- 16.Which of the following can happen if pressure vessels containing flammable liquids are heated by direct flame contact?
- A.
Expanding vessel vapor explosion (EVVE)
- B.
Boiling Liquid Imminent Vapor Burst (BLIVB)
- C.
Rupturing and bursting gaseous explosion (RABGE)
- D.
Boiling Liquid Expanding Vapor Explosion (BLEVE)
- 17.When using water as a cooling agent to help control Class B fires, water applied to burning storage tanks should be directed ___________ the level of the contained liquid
- A.
Above
- B.
Below
- C.
In Line With
- D.
In the center of
- 18.Which of the following statements about Class B fuels is MOST accurate?
- A.
Water without foam additives should not be used on Class B fuels
- B.
Class B fuels must never be flushed down storm drains or into sewers
- C.
Class B fuels will degrade and can be flushed down storm drains or into sewers
- D.
Hoselines should not be used to provide protection when shutting off gas control valves
- 19.When controlling Class B fires, approaches to the storage vessels exposed to the fire should be made at ____angles to the tanks.
- A.
25- Degree
- B.
45- Degree
- C.
65- Degree
- D.
90- Degree
- 20.Which of the following is a major difference in fires in vehicles transporting flammable fuesl and in flammable liquid storage facilities?
- A.
Increased water supply
- B.
Ease of containing spills and runoff
- C.
Decreased life-safety risks to firefighters
- D.
Difficulty in identifying the products involved
- 21.Which of the following is a guideline for working in traffic at bulk transport vehicle fires?
- A.
Use road flares to illuminate the scene
- B.
Position fire apparatus downhill and downwind
- C.
Work from the side nearest traffic as mush as possible
- D.
Close at least one lane of traffic in addition to the incident lane
- 22.Which of the following is NOT a major difference in fires in vehicles transporting flammable fuels and in flammable liquid storage facilities?
- A.
Instability of vehicles
- B.
Increased water supply
- C.
Difficulty in containing spills and runoff
- D.
Increased life-safety risk to passing motorists
- 23.The techniques of approaching and controlling leaks or fires involving vehicles:
- A.
Are the same as for storage vessels
- B.
Are different than those for storage vessels
- C.
Cannot be accomplished by large fire departments
- D.
Require special permits from the Environmental Protection Agency
- 24.Which of the following is NOT a method of determining the exact cargo?
- A.
Placards
- B.
Manifests
- C.
Bills of Lading
- D.
Taste or Touch
- 25.Where is natural gas used?
- A.
Portable Power tools
- B.
Commercial Facilities only
- C.
Portable generators and welders
- D.
Houses, businesses, and as a fuel for motor vehicles
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