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