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C:13 Fire Streams

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what does water hammer sound like

sharp clack like hammer hitting metal

what nozzle opperates by a screw that guides an exterior barrel forward or backward rotating around an interior barrel

rotary control

what valve seats a moveable cylinder against a shaped cone to turn off the water


what foam action creates a barrier between fuel and fire


what foam prevents the release of flammable vapors


for what 2 basic catagories of flammable liquids are foam very effective

hydrocarbon fuels and polar solvents

what is the air/solution ratio for high expansion foam


what foam concentrate has supercleaning attributes and is mildly corrosive

class a foam

in relation to the liquid surface how far away can the line be from the inductor

no more than 6 ft

what is true about foam nozzle inductors

they are built into the nozzle

what nozzle type is some class a foam restricted to

solid bore

what nozzle has a screen that break up foam and mix it with air

water aspirating type nozzle

how does and air asperating nozzle work

it uses the veturi affect at the rear of the nozzle to bring in air and mix with the foam