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48 Cards in this Set

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one cubic foot of fresh water
62.5 lbs
one gallon of fresh water
8.35
one psi will raise water
2.304 feet
one psi will raise water one michael jordan 23 or 2.304
how many gallons does one cubic foot of water contain
7.48 gallons
240 gallons of h2o
one ton
1 perfect vacuum is
29.92 inches of mercury
atmoshperic pressure at sea level is
14.7 psi
you loose aprox .5psi per
1000 feet of elevation
altitude
position of an object aboe or below sea level
elevation
center line of pump of the bottom of a static h20 supply source above or below ground level
static pressure
potential energy available to force water through pipes, fittings , hose and adapters
head pressure
result of dividing number of feet that water supply is above discharge orifice by 2.304
head
the height of water supply above the dischage orifice
perfect vacuum
absolute pressure
vacuum
any pressure less than atmosphere pressure
psia
pounds per sq in - psi above a perfect vacuum
psig
guage readings
dependable lift
height a column of water may be lifted in sufficient quantity to provide a reliable fire flow 14.7'
theoretical lift
vacuum that allows water to be raised by atmospheric pressure to a height in accordance with this pressure
33.8'
EP =
EP = NP + FL + BP
FL = (
FL = (2Qsquared + Q) K per 100' of hose for 100 GPM or more
FL = (2Qsquared + 1/2Q) K per 100' of hose for 100 GPM or less
Q = GPM flow divided by 100
GPM = 29.7 x D squared x square root of nozzle pressure x .9
pressure = ?? x Height
pressure = .434 x height
height = ?? x pressure
height = 2.304 x pressure
K factors for 1", 1.5" 1 3/4", 2.5", ad 3"
1" = 91
1.5" = 13
1 3/4" = 4.5
2.5" = 1
3" = .4
tip size and gpm
1 1/4" = 400
1 3/8" = 500
1.5" = 600
1 5/8 = 700
1 3/4 = 800
1 7/8" = 900
2" = 1000
constant flow
designed to flow a specific amount of water at a specific nozzle discharge pressure on all stream patterns. most are periphery deflected. special application such as high rise FF
Task force tips are
automatic nozzles,
automatic nozzle
type of common ariable flow nozzle aka constant pressure nozzle or multipurpose nozzle. variable flow wih pattern change capabilities to maintain the same nozzle pressure.
TFT master stream
constant pressure, variable flow, automatic.
manually adjustable nozzle
a refinement of constant flow nozzle. a number of constant flow settings, enabling the FF to select a flow rate
portible monitor cannot go past
35 degrees
ladder nozzle lateral movement
15 degrees???
K factors
1” 91 cotton jacket
1 ½” 13 cotton jacket
1 ¾” 4.5 synthetic
2 ½” 1 cotton jacket
3” .4 or 2/5 cotton jacket
H =
H = 2.304P
P =
p=.434H
GPM formula
GPM = 29.7 x D² x square root of nozzle pressure
D = the diameter
If the opening is anything other than a smooth bore nozzle use: GPM = 29.7 x D² x square root of nozzle pressure x .9
For mental work substitute 30 for 29.7
WAP SQ 17AE
SPECIFICATIONS

Water Pick-up 25 gpm
Water Discharge 60 gpm
Water Lift 90 inches
Tank Volume 17 gal
Weight 56 lbs.
Discharge hose should be at least 1 ½” inner diameter
foldatank 3000 gal
“Fire Dept” 3000 US gallons 75 lbs. (Dry) 2 ft. 8 in (Height)
(#SSTFD-3000) 13 ft. Dia. (Top)
14 ft. 9 in. Dia. (Bot)
AFFF
1500 to 1800 square feet when applied at a depth of about 1/2” to 1”.
Positive-Pressure Ventilation
a. Increases visibility.
b. Reduces smoke and heat.
c. It if is not possible to set up PPV prior to starting fire attack, then set up as soon as possible
3' to 6' from door
opening should be should be 75 to 200% of the size of the intake opening
Helicopter Protocol
1. Contact emergency communications center.
2. Give a callback telephone number.
3. Give location of accident or scene.
a. Give Thomas Brother’s map page and coordinates.
b. Specify edition and County.
4. Give radio frequency for contact at accident or scene.
5. Give radio call sign (incident command designation).
a 75’ square landing zone, 125’ square in high winds night 125'
helicopter landing procedures
Weather Conditions Considerations.
1. Helicopters fly under Visual Flight Rules (VFR).
a. 1,500’ visibility
b. 600’ ceiling
2. Helicopter may be requested under light rain or fog conditions.
Landing Procedures.
1. Assign one Firefighter to direct the helicopter landing.
a. Take a position at the landing zone perimeter.
b. Wind to back.
c. Arms extended parallel to ground.
Landing Zone Safety Rules.
No smoking or running within 50’ of landing zone.
No vehicles, fire, police or ambulance equipment is to be driven within 50’ of landing zone
discharge head
the pressure measured at the discharge outlet of a pump
total head
or total dynamic head is the max height above the source of supply to which it would elevate the water plus all resistance to flow in pipes or hose
velocity head
equivalent pressure represented by fluid in motion as measured by means of a pitot gauge
total suction lift
static lift plus friction in suction line plus entrance losses
max theoretical lift
34 feet, which is the pressure of the atmosphere at sea level. max practical lift at sea level is 20 to 25 feet.