Details Title: 0701 Description: Intro to FF Hose, Nozzles, and Fittings Total Flash Cards: 80 Created: 09/05/2007 19:48:35		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 The use of double jacket hose allows what? Definition higher working pressure Term The Jackets of the hose are made of what? Definition High grade cotton cords or combo of dacron and hogh grade cotton. Term The cords of the jacket running around the hose are called? Definition the WOOF Term The cords of the hose running lengthwise are called ? Definition the WARP Term purpose of the WOOF cords is what? Definition confine the forces tending to expand the hose, when pressure is applied? Term Purpose of the WARP cords? Definition hold the WOOF cords in place and control the elongation of the hose Term When dacron is used in combonation w/cotton what cords are made up of dacron? Definition WOOF cords Term How is LAFD hose marked that is costructed to the departments specification? Definition 2 black, 4 white,2 red, 4 white,2 black, adjacent warp cords Term What are the 3 types of fire hose? Definition 100% polyester single or double jacketed, rubber lined( standard for department) 3/4" garden hose Single jacketed, synthetic rubber, impregnated with synthetic fiber Term 100% polyester is _______ proof? Definition Mildew Term Why must hose be repositioned on apparatus? Definition to prevent cracking and checking of rubber liner at sharp bends Term If hose has been used with salt water or any additives what must you do? Definition flush thoroughly inside and out with fresh water before it can be allowed to dry Term How do you clean dirty fire hose? Definition with clear, cold water Term Heavy soiled hose may be washed with what % liquid soap? Definition 5-10% solution liquid soap Term Who must be contacted if can not clean hose with clear water or soulution? Definition S&M division, Equipment engineering officer Term Who is allowed to repair hose? Definition S&M division Term How is damaged hose forwarded to S&M division? Definition clan, dry, rolled, and tied in 2 places Term When do test new and repaired hose? Definition ASAP Term What hose is tested at 400psi? Definition 1 inch double jacketed hose Term What hose is tewsted at 300psi? Definition all other rubber lined single and double jacketed hose, bypasses, and soft suctions. Term How long is the duration of the hose tests? Definition 5 minutes Term The 2 types of basic nozzles are what? Definition straight stream and spray Term How much hose can you test at a time? Definition no more than 300' per line Term How many outlets does the bresnine distributer have? Definition 9 Term How much gpms is the bresnine capable of flowing? Definition 600-800 gpms Term Handlines are capable of flowing how many gpms? Definition 325 gpms and less are considered handlines Term More than ______gpms is considered a Master stream? Definition 350gpm Term Define a complete nozzle? Definition a shut off combined w/ a removable tip, both ends of shut off have hose threads, one male and one female Term Straight streams do what to fire streams? Definition increase velocity, give shape and continuity to fire streams Term Straight streams are preferred for what ? Definition penetration, deep seated fires, quick knock down, and long distances Term When a handline is used with a straight stream nozzle what size is generally used? Definition 2 1/2" shut off and a 1 1/4" tip Term Type of nozzle used on electrical fires? Definition Spray nozzle, finely divided drops of water offer a greater resistance to the flow of electricity. Term What type of nozzle uses less water with same type of effectiveness? Definition spray nozzles, water is applied in the form of a spray. Term What nozzles have less nozzle reaction? Definition Spray nozzles Term What are some disadvantages of spray streams? Definition loss of water through evaporation, dissapation by wind, inability to span great distances. and loss of striking power and penetration Term How are LAFD fittings identified? Definition female first than male, direction of water flow i.e.- 2 1/2" TO 1 1/2" reducer. or 4" BY 2 1/2" dbl female Term What are adapters used for? Definition when changing from one type of thread to another Term What thread types does the LAFD use? Definition NST and PCT- national standard thread and pacific coast thread Term How are PCT adapters identified? Definition with YELLOW paint Term The 4" hose suctions come in what lengths? Definition 12' and 25' for suction. Term The 4" hose also comes in lengths of __________? Shorter then this length it is called a _________? Definition 50 ft. bypass Term 3" hose comes in what lengths and is used for _________? Definition 100ft.(2 1/2" couplings) ladderpipes Term 2 1/2" hose comes in lengths of 50ft for __________ or _________? Definition supply firefighting Term What are the lengths of 2" hose and where is it used? Definition 50ft. for highrise hose packs (1 1/2' couplings) Term The 1 3/4' hose has what size couplings? Definition 1 1/2' Term Where do you use 3/4 in hose? Definition Hose reels and garden hoses. Term What are the hose sizes used by the LAFD? Definition 4", 3", 2 1/2", 2", 1 3/4", 1 1/2", 1", and 3/4" Term The minimum required working and burst pressure for 1in, 1 1/2in, and 2 1/2in dacron and cotton jacket hose is ______ and _________? Definition 600 900 Term This department has an agreement with the C.A.O. for a _________ replacement of all hose. Definition 5 yr. Term Fabric-jacketed hose shall be removed from the apparatus and replaced with clean dry hose at least each _____ ? Definition 3 calendar months Term Firefighting and handlines will be shall be shanged within ______ when damp or dirty? Definition 24 hrs. Term Fabric jacketed supply lines (2 1/2') shall be changed ________ when damp or dirty? Definition weekly or more frequently Term How many hose beds should be changed at a time? Definition One bed of hose will be changed at a time. Term Do small burns on the outer jacket constitute damaged hose? Definition NO Term What shall be done to hose prior to forwarding for repair? Definition mark damaged area by wrapping the hose with black tape. Term How is hose rolled for forwarding for repair? What do you attach? Definition Rolled with female coupling forming the core, unless the female coupling needs repair. Attach a F-175 Term When is all hose tested? Definition Annually Term What is the pneumonic used to test hose Definition 300 ft. hose to 300 PSI at 300 seconds (5min) Term What is the difference between a bypass and a soft suction? Definition A bypass will have 1 male and 1 female coupling. A soft suction will have 2 females Term When are gaskets checked? Definition each time a connection is made Term To lubricate swivels use ____? Use of OIL is prohibited! Definition graphite Term When rolling 4" and 2 1/2" hose for storage it should be rolled with the _______ forming the core? Definition FEMALE Term When rolling 2", 1 3/4", 1 1/2", and 1" hose for storage it should be rolled with the ______ forming the core. Definition Male Term What is the GPM for a Master Stream? Definition Spray- 100 Straight- 80 Term Handheld GPM is Definition Straight- 50 spray- 75 Term The 1in complete spray nozzle has a GPM of Definition 10-40 10-20 Term How much GPM for the 1 1/2" complete spray nozzle (red) Definition 125 Term How much GPM for the 1 1/2' complete spray nozzle (yellow) Definition 250 Term How much GPM for the 2 1/2 complete smooth bore nozzle with 1 1/4 tip? Definition 325 Term How much GPM for the 2 1/2 Bresnine resonator? Definition 6-800 Term What is the size of a shut off for a typical straight stream nozzle? Definition 2 1/2" Term When applying water what stream provides a greater cooling affect? Definition spray Term If properly used, spray nozzles will control ____________ fires? Definition flammable liquid Term What are the components of a complete spray nozzle? Definition shut-off butt and a removable spray tip Term Used to connect a garden hose to threadless faucets, damaged bibs or small mozzle tips. Definition Mast-R-Adapter Term On a double female what is important to note about the threads? Definition Can be the same or different sizes Term Used to connect a larger male coupling to a smaller female coupling. Definition reducer Term Used to merge two lines into one line. Definition Siamese Term The LAFD currently uses what size siamese? Definition 2 1/2" Term Used to protect female threads and protect appliances or fittings. Definition plugs