IFSTA Chapter 18 - Foam Fire Fighting,
Liquid Fires, and Gas Fires Questions&
Answers
Which type of foam proportioner can compromise firefighter safety by slowing
firefighters down since it requires the concentrate to be available where the nozzle is
being operated?
Select one:
a. Compressed air foam system (CAFS)
b. Apparatus-mounted proportioner
c. Foam nozzle eductor
d. In-line eductor -ANSWER - Foam nozzle eductor
The premixing method of foam proportioning is typically used with:
Select one:
a. fog nozzles attached to a large hoseline.
b. a fixed fire protection system in a structure.
c. in-line eductors.
d. vehicle-mounted tank systems. -ANSWER - vehicle-mounted tank systems.
Which method of foam application is only suitable for use on a pool of liquid fuel on
open ground?
Select one:
a. Roll-on method
b. Spread-over method
c. Bank-down method
d. Rain-down method -ANSWER - Roll-on method
In order to prevent reignition of a liquid fuel fire after foam has been applied, do NOT:
Select one:
a. let the foam sit for more than 5-10 minutes without replenishing it.
b. apply a solid or straight stream of water to the foam blanket.
c. add any more foam after the surface has been covered once.
d. apply more foam than necessary for extinguishment. -ANSWER - apply a solid or
straight stream of water to the foam blanket.
Most fire fighting foams are intended to be mixed with:
Select one:
a. 50 to 75.9 percent water.
b. 80 to 90 percent water.
c. 30 to 60 percent water.
d. 94 to 99.9 percent water. -ANSWER - 94 to 99.9 percent water.
, What is an advantage of using a foam nozzle to apply fire fighting foam?
Select one:
a. Produces higher quality foam than a fog nozzle
b. More widely available than a fog nozzle
c. Longer reach than other nozzles
d. More versatile than a fog nozzle -ANSWER - Produces higher quality foam than a fog
nozzle
Because of environmental concerns about fire fighting foam, firefighters should:
Select one:
a. not use foam near bodies of water or public water sources.
b. use foam only as the last option for extinguishment.
c. try to prevent the foam from entering bodies of water.
d. have a hazardous materials team on standby when using the foam. -ANSWER - try to
prevent the foam from entering bodies of water.
Fog nozzles can be used with foam solution to produce:
Select one:
a. low-expansion, short-lasting foam.
b. low-expansion, long-lasting foam.
c. high-expansion, long-lasting foam.
d. high-expansion, short-lasting foam. -ANSWER - low-expansion, short-lasting foam.
At an incident involving flammable liquids or gases, firefighters should immediately
retreat to a safe location:
Select one:
a. if the sound of escaping gas starts to get louder.
b. if they realize that the leak is coming from the distribution system.
c. once the hazmat team arrives.
d. once a foam blanket completely covers the burning material. -ANSWER - if the sound
of escaping gas starts to get louder.
Which method of foam application would be well suited for a flammable liquid spill near
the exterior wall of a building?
Select one:
a. Roll-on method
b. Rain-down method
c. Spread-over method
d. Bank-down method -ANSWER - Bank-down method
Which action should be avoided during an incident involving a tanker carrying
flammable fuels?
Select one:
a. Using road flares
b. Using fire fighting foam
Liquid Fires, and Gas Fires Questions&
Answers
Which type of foam proportioner can compromise firefighter safety by slowing
firefighters down since it requires the concentrate to be available where the nozzle is
being operated?
Select one:
a. Compressed air foam system (CAFS)
b. Apparatus-mounted proportioner
c. Foam nozzle eductor
d. In-line eductor -ANSWER - Foam nozzle eductor
The premixing method of foam proportioning is typically used with:
Select one:
a. fog nozzles attached to a large hoseline.
b. a fixed fire protection system in a structure.
c. in-line eductors.
d. vehicle-mounted tank systems. -ANSWER - vehicle-mounted tank systems.
Which method of foam application is only suitable for use on a pool of liquid fuel on
open ground?
Select one:
a. Roll-on method
b. Spread-over method
c. Bank-down method
d. Rain-down method -ANSWER - Roll-on method
In order to prevent reignition of a liquid fuel fire after foam has been applied, do NOT:
Select one:
a. let the foam sit for more than 5-10 minutes without replenishing it.
b. apply a solid or straight stream of water to the foam blanket.
c. add any more foam after the surface has been covered once.
d. apply more foam than necessary for extinguishment. -ANSWER - apply a solid or
straight stream of water to the foam blanket.
Most fire fighting foams are intended to be mixed with:
Select one:
a. 50 to 75.9 percent water.
b. 80 to 90 percent water.
c. 30 to 60 percent water.
d. 94 to 99.9 percent water. -ANSWER - 94 to 99.9 percent water.
, What is an advantage of using a foam nozzle to apply fire fighting foam?
Select one:
a. Produces higher quality foam than a fog nozzle
b. More widely available than a fog nozzle
c. Longer reach than other nozzles
d. More versatile than a fog nozzle -ANSWER - Produces higher quality foam than a fog
nozzle
Because of environmental concerns about fire fighting foam, firefighters should:
Select one:
a. not use foam near bodies of water or public water sources.
b. use foam only as the last option for extinguishment.
c. try to prevent the foam from entering bodies of water.
d. have a hazardous materials team on standby when using the foam. -ANSWER - try to
prevent the foam from entering bodies of water.
Fog nozzles can be used with foam solution to produce:
Select one:
a. low-expansion, short-lasting foam.
b. low-expansion, long-lasting foam.
c. high-expansion, long-lasting foam.
d. high-expansion, short-lasting foam. -ANSWER - low-expansion, short-lasting foam.
At an incident involving flammable liquids or gases, firefighters should immediately
retreat to a safe location:
Select one:
a. if the sound of escaping gas starts to get louder.
b. if they realize that the leak is coming from the distribution system.
c. once the hazmat team arrives.
d. once a foam blanket completely covers the burning material. -ANSWER - if the sound
of escaping gas starts to get louder.
Which method of foam application would be well suited for a flammable liquid spill near
the exterior wall of a building?
Select one:
a. Roll-on method
b. Rain-down method
c. Spread-over method
d. Bank-down method -ANSWER - Bank-down method
Which action should be avoided during an incident involving a tanker carrying
flammable fuels?
Select one:
a. Using road flares
b. Using fire fighting foam
