CHAPTER 7-ALL TO DATE TEST Flashcards
What classification of portable fire extinguisher is used for fires that involve combustible metals and alloys?
Class D
Portable extinguishers should be chosen based on the:
Type of fuel that is burning
Which method of extinguishing works by excluding oxygen from the burning process?
Smothering
What expelling mechanism works when the operator physically applies pressure to a pump that increases pressure within the container?
Manual pump
What type of portable fire extinguisher is intended primarily for ground cover fires?
Pump type water
What type of portable fire extinguisher uses air stored in the tank to force water up a siphon tube when operated?
Stored pressure water
What type of portable fire extinguisher is intended for use on class K fires?
Wet chemical stored pressure
The resulting foam from an aqueous film forming foam (AFFF) extinguisher will _____fuels longer than air.
Float on the surface of
What application method is used with and aqueous film forming foam (AFFF) extinguisher in order to prevent disturbing the fuel?
Allow foam to gently rain down onto fuel surface
What type of portable fire extinguisher is charged in the form of gas and works on class B and class C fires?
Carbon dioxide (CO2)
What portable fire extinguisher rating considers both the toxicity of the extinguishing agent and the toxicity of fumes produced when the agent is applied?
Class D rating
On a multiple marking extinguisher the rates for each class are:
Separate, they do not affect each other.
Once the proper extinguisher is selected, you must perform a visual inspection to ensure the extinguisher:
Is charged and operable
How do you prevent scattering of light weight fuels?
Apply the agent from the point where it reaches, but does not disturb, the fuel surface.
Signal to others that a portable fire extinguisher is empty by:
Laying it on its side
During inspection, if a portable fire extinguisher is found deficient in weight by____percent it should be removed from service and replaced.
10
Do not remove safety pin on a portable extinguisher until:
Ready to use the extinguisher
How often should portable fire extinguishers be removed from service for maintenance?
Annually
NFPA 10 requires inspection of portable fire extinguishers at least:
Once a year
How often should PPE be inspected?
At the beginning of shift and after every use
What limitation of respiratory protection may cause the wearer to deplete the air supply rapidly?
Lack of physical condition
What limitations of respiratory protection may affect the ability to get a complete face piece seal?
Unique facial features
What limitation of respiratory protection is cause by fogging in the face piece?
Limited visibility
What type of fill station is designed to refill SCBA at emergency incidents?
Mobile fill stations
