Shared Flashcard Set

Details

0701
LP 196 Introduction to Appliances
39
Other
Professional
10/03/2007

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Cards

Term
What do foam nozzles consist of?
Definition
pick-up tube
application barrel
metering orifice
defusing vanes
Term
Foam eductors are used in conjunction with ?
Definition
5 gallon containers of AFFF and ATC
Term
A synthetic foam forming liquid designed to be used at a ratio of 6 parts(conectrate):94 parts (water)?
Definition
Light Water
Term
Light Water is more then ______ times effective as protein type foams on open surface gasoline fires.
Definition
3
Term
AFFF should not be used on what type on incidents ?
Definition
Polar Solvents
Term
What should be used on polar solvent fires?
Definition
ATC ( Alcohol Type Concentrate)
Term
The wet water proportioner is a ____________ __________, variable flow proportioner designed to accomodate water flows and pressures?
Definition
direct demand
Term
The addition of a wetting agent does what?
Definition
Lessens the surface tension of water increasing its ability to penetrate,
Term
When is wet water used?
Definition
Class A combustibles like shingles, baled goods, etc.
Term
Wet water is very _____ and slippery, so care must be used around personnel.
Definition
corrosive
Term
All wet water lines should be flushed>
Definition
After use with fresh water
Term
What does the Wet Water Anti-Siphon sprayer consist of?
Definition
flared tiip metereing nozzle with cup
attached to a garden hose
Term
The metering disk of the Wet Water Anti Siphon Sprayer is normally set at ___ and approximately ___ psi.
Definition
#1
40
Term
The 2 1/2" Bresnan distributor is desgined to throw a heavy spray of water over an area approximately ___ ft. in diameter?
Definition
30
Term
The 2 1/2" Bresnan distributor has ________ orfices and is considered equivalent to a ________?
Definition
9
1 1/2" or 1 3/4" tip (600- 800 GPM)
Term
How is the Bresnan Distributor placed into service?
Definition
Shut-off connected to the supply line at the first coupling back. A bypass may be used instead of a 50 ft. section.
Term
What is a Siphon Ejector used for?
Definition
dewatering operations and for firefighting operations
Term
Siphon ejectors can lift up to ?
Definition
50 ft. or more
Term
The efficiency of a siphon ejector is regulated by the ____________?
Definition
pressure in the supply line
Term
What are the 3 sizes of ejectors?
Definition
2 1/2
1 1/2
1"
Term
The size designation of the siphon ejector is done by the?
Definition
inlet (supply) side of the appliance
Term
Discharge lines of the siphon ejector must be able to handle _______ the flow of the supply line.
Definition
twice
Term
The 2 1/2" Siphon ejector has a adjusting wheel for regulation of the high velocity nozzle. It should be set at?
Definition
40 to 60 psi
Term
A ladderpipe is a HEAVY stream appliance designed to provide fire stream penetration from__________?
Definition
above ground level
Term
What size nozzles are found on the ladder pipe?
Definition
smooth bore 1 1/2"
500 GPM spray
Term
How long are the sections of hose on the ladder pipe?
Definition
100 foot section of 3" hose with 2 1/2" couplings
Term
What size reducer and shutoff are found on the ladderpipe?
Definition
2 1/2" shut-off
4" to 2 1/2" reducer
Term
Normally provided with a 2 1/2" intake manifold with clapper valves.
1 1/2, 1 3/4, and 2" tips are provided.
Definition
Portable Monitors
Term
Portable monitors are similar in manner to ?
Definition
wagon batteries and ladderpipes
Term
How are portable monitors connected?
Definition
4" to 2 1/2" gated wye then two 2 1/2" lines with shut-offs
Term
What are the 6 parts to the portable monitor-light weight?
Definition
1) main body
2) manifold inlet
3) barrel
4) *if no barrel- a diffusing vane
5) legs
6) tie down chain
Term
What are the horizontal rotation limits of a portable monitor?
Definition
360 degrees
Term
How is control of the vertical plane acheived in a portable monitor?
Definition
using a hand whell
Term
How is control of the vertical plane acheived in a portable monitor?
Definition
using a hand wheel
Term
How is control of the vertical plane acheived in a portable monitor?
Definition
using a hand wheel
Term
Wagon Batteries are generally equipped with what size nozzles?
Definition
1 1/2" to 2"
Term
Large monitors permanently mounted on pumping apparatus.
Definition
Wagon Battery
Term
The Apparatus should be placed so that the stream from the wagon battery can enter into the building at a _______ angle.
Definition
30 degree
Term
Effectiveness of wagon batteries in upper floors is limited to what height?
Definition
3rd floor
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