Details Title: 0701 Description: Hydro foam equipment Total Flash Cards: 23 Created: 09/27/2007 20:38:10		New Users: To study from this flashcard set, or to create your own your own study flash cards, REGISTER HERE. Existing Users: CLICK HERE. Additional Other Flashcards
Cards in this set: Term When applining foam it is desirable to utilize a high quality foam stream. What % of the foam stream should land on the flammable liquid? Definition 80% Term The non-aspirating foam nozzle produces a high quality foam that expands to the optimum class B foam range of what ratio? Definition 3:1 to 6:1 Term Hydro foam nozzles can operate effectively at low nozzle pressures of what ? Definition 75psi or less Term Why is the Hydro foam nozzle simple and reliable ? Definition it does not have any moving parts Term The Hydro foam nozzle is recommennded for use at what psi? Definition 100psi Term What is the flow in gpms for the HFN? Definition 660gpm Term The stream range of the HFN? Definition 180' staight stream Term The proportioned mixture is what for the HFN? Definition 3% Term The water inlet is what size? this makes capable to attach to a wagon battery and portable monitor or ladder pipe easily. Definition 2 1/2" NST inlet Term JRC stands for what? Definition Jet ratio contoller Term JRC's have three ports what are they? Definition inlet, dicharge, and suction Term The inlet female and the rigid male connections have what type connections? Definition NST Term The suction side of the JRC has what type connection? Definition NPT Term How much hose do you need to reach from the JRC discharge to the Hydro foam nozzle? Definition 1000' of 1 1/2" Term If you develope a hose lay what is the minimum amount of gpm at what psi, do you need from the source of water to the HFN? Definition 660gpm 100psi Term Due to _____ psi the 1 1/2" foam solution line running from the discharge side of the JRC to the inlet of the HFN will ______ easily. Definition low kink Term How many gallons of foam concentrate can you expect to use per minute if water is flowing? Definition 20 Term Positive metering allows foam mixtures ranging from what? In line faom eductor Definition 0.5% to 6.0% Term The in-line foam eductor(ILFE) can be utilized with what size hose? Definition 1 1/2" and 1 3/4" hose, couplings are the same size Term When using the 1 1/2" hose how far from the nozzle dou you place the eductor? 1 3/4" hose also? Definition 150' on the 1 1/2" 250' on the 1 3/4" Term Always use what spray tip for both 1 1/2" and 1 3/4" hose? Definition 125 gpm tip Term What psi must you pump to the eductor? Definition 200 psi Term What % do you select to use on the ILFE when using it on normal class B fires? what % would you select for polar solvants? Definition 3% 6%