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89 Cards in this Set

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NFPA standard for Fire Apparatus Dirver/Operator Professional Qualifications.
NFPA 1002
p.3
NFPA standard for Automotive Fire Apparatus
NFPA 1901
p.8
NFPA states that the minimum pumping capacity for a fire pumper is...
750 GPM
p.8
NFPA Standards for building industrial foam pumpers
NFPA 11C
p.9
NFPA 1901 states a Mobile Water Supply Apparatus must carry at least __________ gallons of water.
1000 gallons
Standard for Fire Department Occupational Safety and Health Program.
NFPA 1500
p13
Standards for Wildland Fire Apparatus
NFPA 1906
p14
What does ARFF stanf for?
Aircraft Rescue and Firefighting
p14
Standard for Aircraft Rescue and Fire Fighting Vehicles.
NFPA 414
p14
What five items must a quint contain?
-Aerial Device
-Ground Ladders
-Fire Pump
-Water Tank
-Fire Hose p16
Static Pressure
Pressure exerted in all directions at a point at rest
Residual Pressure
Pressure remaining in a water system while water is flowing
Flow
Forward velocity pressure at a discharge opening when water is flowing
Normal Operating Pressure
Pressure found in the water distribution system during normal consumption demands
Negative Pressure
Vacuuum - Pressure that is less than atmospheric
Displacement
Movement of a given amount of fluid w/ each stroke of a pump
Head Pressure
Water pressure due to elevation

0.434psi/foot
Hydrant Pressure
Force of water when it enters the pump from the distribution system
Net Engine Pressure
The actual amount of pressure being produced by the pump
Nozzle Reaction
Counterforce
Compound Pressure
Gauge capable of measuring both negative and positive pressure
Name 3 types of positive pressure pumps
Piston pump
Rotary gear pump
Rotary vane pump
Name 3 types primers used to prime centrifugal pumps which are not self priming
Positive displacement pumps
Exhaust primers
Vacuum Primers
Name 4 types of retarders used on fire engines
exhaust
engine
hydraulic
electric
GPM formula
29.7*nozzle diameter in decimals squared*the square root of nozzle pressure
Friction Loss formula
C*Q2*L
1" hose coefficient
150
1 1/2" hose coefficient
24
1 3/4" hose coefficient
15.5
2 1/2" hose coefficient
2
5" hose coefficient
0.08
Solid Stream handline operates at ____ PSI?
50PSI
A solid bore master stream operates at ____ PSI
80 PSI
Most Automatic and Constant Flow nozzles are designed to flow at _____ PSI
100 PSI
Generally, ____ is the maximum amount of water that can safely flow through a handline.
350 GPM
P.131
Master stream flows are generally ____ GPM or greater.
350 GPM
P.131
Cellar, piercing and chimney nozzles usually operate at _____PSI
100psi
P136-137
Newton's third law of motion.
For every action there is an equal and opposite reaction.
P.136
Calculation for nozzle reaction in a solid bore nozzle
1.57*(D*D)*NP
P.137
Calculation for nozzle reaction in a Fog Stream nozzle
NR=0.0505*Q*(NP square root)
P.137
Rule-of-thumb for NR for Solid Bore nozzles
Q/3
P.137
Rule-of-thumb for NR for Solid Bore nozzles
Q/2
P.137
How many gallons of water are in a cubic ft.
7.5 gal
Rectangular pool calculation for capacity in gallons
L x W x D x 7.5gal
p308
Round pool/tank calculation for capacity in gallons
pi x (radius squared) x Depth x 7.5gal
The smallest accepted standard for the size of a water main is ____.
8 inches
How many gallons are in a tank with a radius of 15' and 30' long.
158,962.5
How often should the motors on a small engine (saw, generator etc.) be started?
Weekly
How often should apparatus fluid levels be checked?
Daily
What is the smallest acceptable size of a water main, for a hydrant bell to be connected?
6 inch
What type of metal are the mechanical parts of a hydrant made of?
Bronze
If you relay pump the pumper with the greatest capacity should be placed were?
At the supply source
Atmospheric pressure at sea level
14.7
How many GPM will a 1" solid bore tip flow at 50PSI?
200gpm
LFD
When drafting your screen should be _____ inches from the surface.
24
What is the MAXIMUM realistic lift that can be obtained while drafting.
20ft
When measuring lift distance while drafting you measure from the ______ of the water the _____ of the pump.
Surface, Middle
Why should hydrant be turned completely on when being used, even if minimal GPM is required?
Because the drain does not completely close and can cause erosion.
How much elevation loss would you experience on a 100ft tall building?
50 PSI
How much friction loss do you add for a standpipe?
25 PSI
LFD
What is the nozzle reaction of a 2' solid bore nozzle 80 PSI on
NR=1.57 x nozzle diameter x NP
NR=1.57 x 2 x 80

NR=251.2 pounds
When using brakes, the anti skid device reduces pressure on which brakes, front or rear?
Front
What is relay pumping?
Using two or more engines to move water a long distance.
What is tandem pumping?
When one pumper boosts the second pumper to boost pressure.
What is dual pumping?
Two pumper use the same supply hydrant
What type of pump is the most commonly used in the fire service?
Centrifugal
Name two types of positive displacement pumps.
Rotary
Piston
1 inch of water 1 foot deep produces ____PSI
0.434 PSI
1 PSI will lift 1 sq inch of water _____ high.
2.304 ft
A transfer valve in the series position will increase the pressure or the volume of water delivered?
Pressure
Device which changes engine speed to compensate for changes in flow?
Governor
How often should vehicle air tanks be drained?
Weekly
Formula for calculating fire flow needed to fight fire in a structure?
How much needed for exposures?
(L x W)/3 and adjust for % of building involved.

Add 25% for each exposure.
Theoretical MAXIMUM lift of water in a perfect vacuum.
33.95 ft
What are the colors used for hydrants and their corresponding flows
Blue = 1500 GPM or greater
Green = 1000-1499 GPM
Orange = 500-999 GPM
Red = 499 GPM or less
What class of foam is mixed at 0.1%-1%
Class A
What are the percentages used to classify whether detergent foam is low, medium or high expansion?
2-20:1 = Low
20-200:1 = Medium
200-1000:1 = High
Foam eductors use what principle to draw foam into a water stream?
Venturi
What are three foam application techniques?
Roll in
Bounce off
Rainfall
Three categories of preventative maintenance?
Routine
Schedule
Corrective
Air horns stop working at ____PSI
80
Brake warning buzzer goes off at ____PSI
60
Brakes auto engage at ____PSI
40
What are the three levels pumpers are tested at and for how long?
100% test at 150 PSI for 20min
70% test at 200 PSI for 10min
50% test at 250 PSI for 10min
What is the dry vacuum test?
Pull primer valve and draw 22mmHg. Vacuum shall not drop more than 10mmHg in five minutes.
NFPA Standard for service test of pumps
NFPA 1911
NFPA Standard for ground ladder testing
NFPA 1932
NFPA Standard for fire hose testing
NFPA 1962
NFPA Standard for fire flow testing and marking of fire hydrants
NFPA 11