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Frage 1
Frage
Which of the following statements about foam proportioning is MOST accurate?
Antworten
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Most Class A foams are mixed in proportions of 3 to 6 percent.
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Most Class B foams are mixed in proportions of 1 percent or less.
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Mixing Class A foam at a higher recommended percentage results in a thick, dry foam.
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The percentage rate for proportioning foam is determined by the authority having jurisdiction.
Frage 2
Frage
Which of the following proportioning methods depends on the Venturi Principle to draw foam through a hose connected to the foam concentrate container and into the water stream?
Antworten
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Injection
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Eduction
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Premixing
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Batch-mixing
Frage 3
Frage
Which of the following statements about foam proportioners and delivery systems is MOST accurate?
Antworten
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The foam proportioner adds air into the foam solution to produce finished foam.
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The foam proportioner and delivery system must be compatible to produce usable foam.
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Either a foam proportioner or a foam generating system is needed to produce a foam fire stream.
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The foam-generating system introduces the appropriate amount of foam concentrate into the water to form foam solution.
Frage 4
Frage
Which of the following statements about foam hazards is MOST accurate?
Antworten
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Never flush foam concentrates from exposed skin.
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Some foam concentrates and their vapors may be harmful if inhaled.
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There is no need to flush or wash equipment that has been used to apply foam.
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Most Class A and Class B foams act to lubricate and preserve pumps, eductors, and other equipment.
Frage 5
Frage
**The deployment of a master stream device requires a minimum of:
Antworten
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one firefighter.
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two firefighters.
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three firefighters.
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four firefighters.
Frage 6
Frage
**If a vehicle using ethanol or methanol is on fire, use only ___ to extinguish.
Antworten
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water
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Class D fire extinguishers
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aqueous film forming foam
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Alcohol Resistant Class B foam
Frage 7
Frage
Which kind of ground cover fire is slow moving and smoldering?
Antworten
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Crown fire
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Ladder fire
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Ground fire
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Surface fire
Frage 8
Frage
**Which kind of ground cover fire burns on the soil surface, consuming low-lying grass, shrubs, and other vegetation?
Antworten
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Crown fire
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Ladder fire
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Ground fire
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Surface fire
Frage 9
Frage
**Which of the following is a long narrow strip of fire extending from the main fire?
Antworten
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Head
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Flank
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Island
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Finger
Frage 10
Frage
**What rule can be amended if a life safety hazard to a victim that can be saved without undue risk to firefighters is present on scene?
Antworten
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SAR rule
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SCBA rule
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Two-in, two-out rule
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Situational awareness rule
Frage 11
Frage
**What fireground role is defined as the one that works to locate and assist firefighters trapped during operations?
Antworten
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Fireground support company
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Rapid intervention crew/team
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Second-arriving company
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Incident Commander
Frage 12
Frage
What fireground role should be two or more members wearing complete PPE and respiratory protection, with the purpose of locating firefighters incapacitated during operations?
Antworten
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Incident Commander
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Rapid intervention crew/team
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Second-arriving company
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Fireground support company
Frage 13
Frage
Which of the following BEST describes the flash point of flammable liquids?
Antworten
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Less than 100°F (38°C)
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Each varies, but it is never less than 50°F (10°C)
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Each varies, but it is always higher than 50°F (10°C)
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Greater than 100°F (38°C)
Frage 14
Frage
Where should apparatus be located at a Class B fire?
Antworten
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Upwind and downhill of the incident
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Upwind and uphill of the incident
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Downwind and downhill from the incident
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Downwind and uphill of the incident
Frage 15
Frage
**Water as a mechanical tool can move ___ to where they can burn safely.
Antworten
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Class B fuels
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Class C fuels
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Class A fuels
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Class K fuels
Frage 16
Frage
Techniques for extinguishment at bulk transport vehicle fires are similar to fires in:
Antworten
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high-rise structures.
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residential occupancies.
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underground tunnels.
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flammable fuel storage facilities.
Frage 17
Frage
**Which of the following BEST describes a way to determine the nature of cargo at a bulk transport vehicle fire?
Antworten
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Estimate based on type of container
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Use past experience to predict
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Use bills of lading or placards
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Estimate using information from witnesses
Frage 18
Frage
Which of the following BEST describes approach and staging techniques used at flammable gas incidents?
Antworten
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Approach from downwind and stage on upwind side
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Approach from upwind and stage on the downwind side
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Approach from and stage on the upwind side
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Approach from and stage on the downwind side
Frage 19
Frage
Which of the following BEST describes the process taken at flammable gas incidents if gas is burning?
Antworten
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Extinguish burning flame
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Use hose streams to protect exposures if needed
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Request mutual aid extrication teams
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Monitor, but do not shut off pressurized gas supply
Frage 20
Frage
**Control of all evidence must be maintained as part of the ___ required in legal cases.
Antworten
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area of origin
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chain of custody
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fire investigation
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collection of evidence
Frage 21
Frage
Which of the following may appear on floors and indicate where fuel burned in that location?
Antworten
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Debris
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Charring
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Flashover
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Fire pattern
Frage 22
Frage
**Which of the following decides what evidence is collected?
Antworten
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Fire chief
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Firefighter
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Fire investigator
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Insurance investigator
Frage 23
Frage
**Who has legal responsibility for determining origin and cause of a fire?
Antworten
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Fire chief
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Firefighter
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Police officer
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Fire investigator
Frage 24
Frage
Responsibility for ___ can lie with state fire marshal, state police, or other state agency.
Antworten
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fire cause
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investigation
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amount of loss
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insurance information
Frage 25
Frage
**Once the control of scene has been relinquished, personnel can only re-enter after:
Antworten
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providing valid identification.
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securing permission from owner.
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speaking with the insurance investigator.
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logging in with the person granting access.
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