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C:13 Fire Streams
toppins

Front Back

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


slide


what foam action creates a barrier between fuel and fire


separating


what foam prevents the release of flammable vapors


suppressing


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


200:1-1000:1


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