Drivers test Flashcards
Pump Pressures for 1 3/4” dead load
400’
175gpm fog
185gpm 15/16” slug
65-80-90-105-120-135-150-165
+55psi extend bundle
Pump Pressures for 2 1/4” dead load
400’
300 gpm 1 3/16” smooth bore
65-80-90-105-120-135-150-165
+10psi extend bundle
Pump Pressures for 3” & 1 bundle
600’
0-150 -> 70
200-300 -> 75
350-450 -> 80
500-600 -> 85
+5 psi extend bundle
Pump Pressures for 3” & 2 bundles
600’
350 Fog
370 slug
90-90-90-100-100-100-110-110-110-120-120-120
+5psi extend bundle
Pump pressure 3” Blitz with 1” tip
600’
105-105-105-110-110-110-115-115-115-120-120-120
Pump pressure 3” Blitz with 1 1/4” tip
600’
130-135-145-150-155-160-165-170-175-180-185-190-195
Pump pressure 3” Blitz with 1 1/2” tip
600’
600gpm
180-190-200-210-220-230-240-250-260-270-280-290
Pump pressure 3” Blitz with fog nozzle
600’
500 gpm
150-160-170-180-190-200-210-220-230-240-250-260
Pump pressure 3” ladder pipe single line 1 1/2” tip
400’ max
600 gpm
225-235-245-255-265-275-285-295
Pump pressure 3” Ladder pipe dual line 1 1/2” tip
600’ max
600 gpm
160-160-160-165-165-165-170-170-170-175-175-175
Pump pressure 3” Ladder pipe single line fog
550’ max
500 gpm
195-205-215-225-235-245-255-265-275-285-295
Pump pressure Ladder pipe dual line fog
600’ max
500 gpm
150-150-150-155-155-155-160-160-160-165-165-165
Pump pressure Wildland 1 1/2”
100-600’
65-80-95-110-125-140
+/- 5 psi elevation
Additional lengths +15psi
Pump pressure auto sprinklers and standpipes
start at 150 do not exceed 170
Reserve apparatus are checked…
weekly, whenever used in service, used during training, or returned from maintenance
The following should be checked every day (3 broad)
- Fluid levels (fuel, water, foam, coolant, oil, def)
- Vehicle (pre trip checks)
- Equipment (keys, maps, radios, scba, medical, inventory, gas powered tools)
Weekly checks (each day)
Monday - cell phone and battery charge
Tuesday - extinguishers and equipment/tools/toolbox
Wednesday - EMS equipment and PPE
Thursday - Intercom, ps fluid level, transmission fluid, undercarriage/frame
Friday - canteens, hose loads, tiller bucket
First saturday checks
Engine - adapters/appliances, nozzles, 5” hose
Truck - electrical ops - emergency electrical mode, lube aerial, gas monitors
Second Saturday checks
Engine & Truck - frame, running gear, exhaust, suspension
Third Saturday checks
Engine & Truck - Ladders, pike poles, rescue equipment inventory truck
Types of leaks (3)
Class 1 - wet or discolored but no able to form drops
Class 2 - flow of fluid great enough to form drops but not enough to fall
Class 3 - flow of fluid great enough to form drops that fall from the leak
Out of service criteria:
Driving and crew area (6)
- cracked or broken windshield that obstructs drivers view
- missing or broken rearview mirrors that obstruct driver’s view
- missing or broken windshield wipers
- missing or broken door latches
- missing or broken foot throttle
- seat belts (drivers = rig out service, any other seat = seat out of service)
Out of service criteria:
Chassis, axles, steering and suspension, driveline, wheels, tires (12)
- GAWR on vehicle greater than tire manufacturers load rating
- Tires w/ cuts in sidewall that penetrate cord
- tires that do not maintain inflation
- tire tread
- suspension components loose, broke, or missing
- 1/4 of leaf springs broken or missing
- any top or second leaf spring cracked or broken
- wheels out of round, bolts damaged, fasteners damaged
- axles flanges w/ class 3 leak
- axle w/ class 3 leak
- steering component w/ class 3 leak
- steering wheel more than 10 degrees of play
Out of service criteria:
engine systems (6)
- engine wont start
- class 3 oil leak
- engine overheated
- oil with water, fue, or coolant in it
- class 2 fuel leak
- “stop engine” light
Out of service criteria:
Engine Cooling systems (4)
- class 3 cooling system leak
- coolant contains oil
- cooling system max operating temp
- missing or broken radiator fan
Out of service criteria:
Transmission (3)
- overheats
- “do not shift” light
- class 3 leak of transmission oil
Out of service criteria:
Electrical (5)
- legally required lighting
- horn (air or electric)
- hazards
- ignition not working
- charging not working
Out of service criteria:
Braking (lots)
- static test
- engine more than 2 psi in minute
- Truck 3 psi
- applied - Engine 3 psi 1 minute Truck 4 psi
- Parking brake (doesn’t stop at 5mph, hold vehicle on 20% grade, doesn’t activate 20-45 psi)
- Air compressor fails to build pressure from 85-100 in 45 seconds
- fails to maintain 80-90 psi while brakes applied
- fails to fill to cut-out, no more than 130psi
Out of service criteria:
Pump (6)
- wont go into pump
- pump shift indicators not working
- pump throttle not working
- relief valve not working
- relief valve relieves more than 20 psi when activated
- pump tranny has class 3 leak
Out of service criteria:
Aerial (8)
- PTO not working
- stabilizers not working
- aerial not working
- hydraulics not working
- Cable sheaves not working
- Cables frayed
- aerial deformed
- turntable fasteners broken or missing
All proposed apparatus modifications are to be presented in writing…
through the chain of command, to the BC of apparatus, and approved by ops chief and fire chief
Emergency maintenance of apparatus
immediate repair - call BC - BC will contact corp yard or after hours will call on call mechanic
PS Trax completed and followed up when fixed
if no immediate repair, out of service and into a reserve
Minor accidents involving city property by HFD vehicles only require
drivers accident report
All accidents with any injuries or significant property damage to city property or city vehicle require what report
a traffic collision report by HPD
What will be filled out by driver after any accident?
drivers accident report, submitted to BC by end of shift
Accident review committee consists of
BC of apparatus, DC of ops, Training BC, A/O chair and his/her designee
speed limit when backing
no greater than the person backing to walk backward safely
when any fire department vehicle is deemed non operational, notify BC and dispatch of
type and number of vehicle
location of vehicle
type of problem
when flag is displayed on FD vehicles it shall be located where?
R side grab handle of pumpers
R side handle on pedestal of trailer
flag size for rigs
2’x3’
Water supply first in may
second in shall
Target flow for residential fires is
300 gpm from the first two lines
Target flow for commercial fires is
470 gpm from the first two lines
what is an appliance?
any wye, siamese, reducer, adaptor, or other piece of hardware used in conjunction with fire hose to deliver water
static pressure
stored potential energy available to force water through fire hose and appliances; at rest without motion
flow pressure
pressure created by the rate of flow or velocity of water coming out of discharge
residual pressure
pressure remaining when water is flowing
normal operating pressure
pressure on a water system during regular domestic consumption
velocity measured in
FPS
Slippage
the ability for water to pass through a pump
Centrifugal pump
pump that produces pressure by increasing velocity by spinning it faster and faster and pushing it out; are able to take advantage of incoming water pressure because they are 100% capable of slippage
positive displacement pump
pump that is capable of pumping both air and water; used as primers for the main pump
friction loss definition
loss of pressure created by the turbulence of water moving against the interior walls of the hose
gallon of water weighs
8.33lbs
to calculate friction loss it is necessary to know (3)
target flow
size of hose
length of hose lay
Appliance loss
25 psi friction loss for master streams
15 psi FL for ground monitors
Elevation pressure
5psi/floor
Standard nozzle pressures
smooth bore
fixed gallonage fog
smooth bore master
automatic master
50 psi
50 psi
80 psi
100 psi
Total pressure loss formula
TPL = FL+AL +/- EL
Pump discharge pressure formula
PDP = NP +TPL
Discharge formula
29.7 x d squared x square root NP
column of water 1 foot high exerts a downward pressure of
.434 psi
stick of 5” holds
100 gal
stick of 3” holds
20 gal
stick of 1 3/4 holds
7 gallons
stick of 2 1/4 holds
10.5 gal
Standpipe and sprinkler systems generally tested to
175 psi
Always connect blank 3” hose lines to FDC
2
Class I standpipe
FD use
class 2 standpipe
occupant use
class 3 standpipe
both FD use and occupant use
what is a combined FDC system?
sprinkler and standpipe
start at 150psi and work up if you have to but not above 170 psi
percentage decrease in pressure formula
(static pressure - flow pressure) / static pressure x 100
based on percentage decreased in pressure formula, percentage dictates how much water you have left to flow
0-10% decrease = 3 times current amount of water flowing
11-15% = 2 times
16-25% = 1 times
25% and greater = less than current amount flowing
forward lay
hydrant to scene
reverse lay
attack lines pulled with appropriate tools; supply lay from scene to hydrant
split lay
1st engine lays butt and drives to scene
2nd engine lays from butt to hydrant
schoolyard lay
1st engine lays butt and drives to scene
2nd engine lays from hydrant to butt
Consider a hydrant pumper for
large commercial fires or relay pump operation
water shuttles and relay pump ops may be required is some parts of the city; what districts are there known areas of concern? (5)
3 , 5 , 8 , 9 , 7
relay pumping shall be followed for
locations/areas where supply lines will be longer than 400’ or there is a significant increase in elevation from the hydrant to the attack pumper. One pumper per 400’ and there should be an engine placed on the hydrant
order or relay pumping apparatus from fire
attack pumper -> water supply specialist -> relay pumper 1,2,3.. -> hydrant pumper
what channel should A/O be on for relay pumping operation?
TAC 5 and scan
what pressure may you not exceed for relay pumping ops?
180 psi
water supply specialist must maintain at least ________ on compound gauge when relay pumping
10 psi
target oil pressure
20 psi @ idle
40-60 psi @ normal operation
Target voltmeter
13-14 Volts
minimum of 12
Target Air pressure
80-120 psi
100-120 psi ideal
Target Engine coolant temp
165-200 degrees F
Target Ammeter
Just above 0 - charging - in the green
Target transmission oil temp
160-200 degrees F
As hydrant pumper for relay pumping operation, make sure to _______ the hydrant
well
What circumstances will water shuttle most likely be used? (3)
Hills (dist. 3,5,7,8,9)
Airport
Wildland
Describe water shuttle positions and operations from attack pumper on
attack pumper -> water supply specialist -> Supply 1,2,3… -> hydrant
water supply specialist hooks into attack pumper intake from LDH discharge, then from intake to storz - 2 1/2” and a stick of 3” hose off each 2 1/2” double female
hydrant station set up
5” stinger to steamer connection
storz to 2 1/2”
2 sticks of 3” off each double female
fill up at hydrant station, drive to water supply specialist, fill at 1/4 tank , water supply specialist fills attack pumper when attack pumper gets to 1/4 tank
True/ False
When pumping 3” and 2 bundles if extending one bundle, the other needs to be extended as well. Both lines shall be the same length
True
Describe aerial apparatus inside/out spotting technique
when necessary to use aerial at maximum,
- if building is less than 5 stories tall engine inside truck outside
- if building is greater than 5 stories truck inside, engine outside
Considerations for truck A/O associated with aerial ladder placement (9)
- electrical wires
- building openings
- potential building collapse
- reach and climbing angle of ladder
- potential water tower operations
- surface conditions
- angle of slope and degree of side stress
- wind conditions
- accessibility of ground ladders
during ladder pipe operations, A/O will pay attention to make sure bottom cylinder gauge maintains a minimum of ________.
If this is not met, what immediate measures will be done to fix it? (2)
100 psi
- nozzle moved inline with aerial
- reduce angle of inclination
Ladder pipe operations
Height
Angle
other considerations
ladder height no more than 85’
angle
- no less than 45
- no more than 70
- 60 optimal
below 45 - 1 250lb man or 1000 gpm
the more retracted the ladder is the more sturdy it is
Ladder pipe smooth bore stacked tips
1 3/8” -> 500 gpm
1 1/2” -> 600 gpm *normally used**
- 160 psi plus friction loss from engine
to siamese
1 3/4” -> 800 gpm
2” -> 1000 gpm
Ladder pipe fog nozzle
100 psi up to 1000 gpm
180 psi plus friction loss from engine to siamese
Ladder pipe operations
situations that might require unmanned ladder pipe (5)
large flammable liquids
possibility of explosions
possibility of collapse
Haz mat incidents
Any other extremely dangerous event
Airport emergencies designated staging areas
crash 6 stages on access road just short of taxiway zulu (adequate view of aircraft’s descent with a comfortable safety zone)
additional HFD companies, HPD, ambulances stage at training grounds at co. 6
Always approach aircraft from a ___ angle on the ___ side
45 degree; egress
Aircraft fire apparatus set up
- crash 6 fire attack
- 1st due engine back up crash 6
- 2nd due engine water supply for crash 6 or first engine
- truck set up best suit for extrication and rescue
if anything is found missing or damaged on inventory, what do you do?
- report to captain, BC, and opposite crews
- make not in PS Trax and on station status boards
inventory performed when?
first day back or any time apparatus is placed back into service
Damaged equipment will be routed to
appropriate BC with equipment repair order form, and proper notification
What pressures are our hose tested at?
1 3/4 - 300 psi 3min
2 1/4 - 300 psi 3 min
3 (orange angus) - 400 psi 3 min
3” (yellow) - 250 psi 3 min
5” - 200 psi 3 min
When is hose testing performed?
annually during the months of may and june
where does hose testing get recorded?
- annual hose test and database information record
- electronic engine hose card on sharepoint
- save a copy to Onedrive and send it to station 8 captain and apparatus BC through chain of command
A/O responsibilities after earthquake/emergency event (5)
- remove all apparatus to a safe outside location
- remove any other essential equipment to a safe area ( Mac unit, reserve equipment)
- check fuel pumps
- check condition of all apparatus
- report to captain when completed
closest hydrant on palomares rd and what other water source is available
approximately 1 mile north of first address; 12k gal pool at last house in response area
operational retreat abandon signal
repeated short air blasts 10 seconds on 10 seconds off x 3 total of 50 seconds
drafting
definition of lift
difference in elevation between the surface of the static water supply and the center of the pump intake
drafting
formula for maximum lift
L(height of lift in ft)=1.13(constant)xHg(inches of mercury)
in most circumstances max lift is
25 ft
drafting
definition of theoretical lift
scientific height that a column of water may be lifted by atmospheric pressure in a true vacuum
at sea level it is 33.9ft, this decreases as elevation increases
every 1000 ft atmospheric pressure drops 0.5 psi
because a pumper cannot create an absolute vacuum, max lift will be less than theoretical lift
drafting
definition of dependable lift
height a column of water may be lifted in sufficient quantity to provide a reliable fire flow; factors in lift and friction loss
most pumpers should have a lift of at least 15 feet
drafting
minimum distance around strainer
2 ft
foam concentrations
0.1-1% ordinary combustibles
3% hydrocarbons
6% polar solvents
How many gallons does the OES hold?
500
What does a blinking red light on the airport tower mean?
Clear runway
What does a blinking white light on airport tower mean?
Return to starting point
What does blinking red and green lights on airport tower mean?
Proceed with caution
When relay pumping complete, who shuts down first? Hydrant or pumper?
Pumper
If relieve valve moves more than ___ psi, it is out of service
20
Vent aerial spotting factors (3)
- unburned side
- upwind
- close to area cutting
For an effective fire stream, less than ___ feet of lift for drafting is recommended
20
Max lift variables (4)
- atmospheric pressure
- condition of fire pump/primer
- condition of intake hose
- gaskets/valves
Theoretical lift at sea level
33.5’
Max lift
25’
In volume, pump will supply ____% capability @ ___psi at ___ft of lift w/ ___ft of suction hose drafting
100
150
10
20
Smooth bore gpm calculation
29.7 x d squared x square root NP
SB nozzle reaction formula
1.57 x diameter squared x NP
Impeller spins ____ times as fast as the engine
1.5-2.5
Truck facing downhill, pull past or stop before building?
Pull past; uphill stop short
If the pressure differential between compound and main discharge gauge is greater than ____ you cannot use the transfer valve without supplying more water to the pump
45psi
Switching to volume step by step on a fire
- Notify IC that you will need to switch to volume and that there will be a drop in pressure to hose lines
- if there are interior crews, have them back out to a safe area
- Throttle down and close/gate down discharges (least important lines first)
- Confirm difference in pressure from compound and main discharge is less than 45 psi
- Switch to volume and then throttle up and open any gated down or closed discharges
- Notify IC switch has been completed
Blitz stacked tips size and gpm
1” 266 gpm
1 1/4” 415 gpm
1 1/2 598 gpm
How many gallons does 303 hold?
530 Gal
Name 4 crosses for West A st
Hesperian
Victory
S Garden
Royal
Name 5 crosses for A st
Hathaway
Western
Montgomery
Mission
Main
Foothill
Second
Rockaway
Name 5 crosses for Hesperian
W A st
W winton
Southland
Depot
Tennyson
Bolero
Panama
Industrial
Arf
Name 5 crosses on Mission
Sunset
A
B
C
D
Fletcher
Sycamore
Highland
Berry
Torrano
Carlos Bee
Orchard
Tennyson
Industrial
Harder
Name 5 crosses for Main
Sunset
Hazel
A
B
C
D
Namr 5 crosses for Foothill
Grove
Hazel
Russel
City center
A
B
C
D
Name 5 crosses for Winton
Grand
Meek
Soto
Amador
Santa clara
Hesperian
Name 5 crosses for D st
Mission
main
1st-4th
6th
Name 5 crosses for Jackson
Silva
sycamore
soto
cypress
amador
santa clara
park
pontiac
tarman
Name 5 crosses for Harder
Mission
jane
soto
gading
cypress
underwood
tarman
santa clara
bishop
evergreen
Name 5 crosses for Tennyson
mission
dixon
whitman
huntwood
manon
ruus
pompano
tampa
patrick
calaroga
hesperian
Bahama
Name 5 crosses for Clawiter
w winton
national
alpine
american
depot
dunn
Name 5 crosses for Depot
clawiter
hesperian
mohr
dodge
gettysburg
adrian
Name 5 crosses for Hayward Blvd
skyline
farm hill
chronicle
dobbel
parkside
bailey ranch
barn rock
Name 5 crosses for Fairview ave
D
Five canyons
star ridge
arbutus
stonebrae
hayward blvd
hansen
Name 5 crosses for Five canyons
boulder canyon
woodbury
stone canyon
fairweather
hilltop
fairview
Name 4 crosses for East ave
Hansen
E st
Windfelt
Hackamore
Welling a hydrant can be best described as
Taking water from every discharge of a hydrant
Welling a hydrant can be best described as
Taking water from every discharge of a hydrant
Welling a hydrant is best described as
Getting water from every discharge of a hydrant
What is the nozzle reaction from a fixed gallons he got nozzle in a 1 3/4 line flowing 175gpm?
62 pounds
What is the nozzle reaction from a 1 3/4 line with a smooth bore flowing 185gpm?
69 pounds
When relay pumping deemed necessary, who will establish ICS function of water supply specialist?
Second in A/O
While relay pumping, A/O should maintain at least ____psi on compound gauge
10
When relay pumping through 5”, engine pressure should not exceed
180 psi
On narrow streets, truck should be parked
One house down, on the opposite side of the street
