MATH
PDP FOR A 200' 1 3/4 WITH A 150/75 NOZZLE?
FL=15.5*1.5^2*2=69.75
PDP=69.75+75=144.75
WHAT IS A GENERAL GUIDELINE FOR POSITIONING APPARATUS AT AN INCIDENT?
UPHILL, UPWIND IF POSSIBLE
ATMOSPHERIC PRESSURE AT SEA LEVEL IS?
14.7 PSI
WHAT IS THE FRICTION LOSS FORMULA?
FL=C(Q²)(L)
WHAT NOZZLE PRESSURES ARE SMOOTH BORE HANDLINES AND MASTER STREAMS PUMPED AT?
50 AND 80 PSI
FL=.2(8^2)(4)=51.2
PDP=51.2+20=71.2
WHEN SUPPLYING AN AERIAL, HOW CLOSE SHOULD AN ENGINE PARK?
AS CLOSE AS POSSIBLE, WITHIN 100 FT AND NOT BLOCKING THE TRUCK FROM GETTING LADDERS OUT
AT 212 DEGREES F, WATER CONVERTED TO STEAM OCCUPIES APPROXIMATELY HOW MANY TIMES ITS ORIGINAL VOLUME?
1,700 TIMES
FREEMANS FORMULA
GPM=29.7(D²)(√NP)
IN PWC OUR 1 3/4 AND 2 1/2 OPERATE AT WHAT GALLONAGE AND NOZZLE PRESSURE?
1 3/4 - 150GPM/75 PSI
2 1/2 - 250GPM/75PSI
ELEVATION PRESSURE FOR OPERATIONS ON THE 8TH FLOOR?
EP=5PSI(#STORIES-1)=5(8-1)=5*7=35PSI
WHAT IS THE TERM THAT REFERS TO THE GREATEST HEIGHT TO WHICH ANY AMOUNT OF WATER MAY BE RAISED THROUGH AN INTAKE HOSE TO THE PUMP?
MAXIMUM LIFT
A GALLON OF WATER WEIGHS?
8.33 LBS
WHAT IS THE PDP FORMULA?
PDP=FL+AL+/-EP+NP
WHAT TERM REFERS TO A COUNTERFORCE THAT PUSHES BACK AGAINST FIREFIGHTERS OPERATING ON A HOSELINE?
NOZZLE REACTION
LEADER LINE - 200 FEET OF 3 INCH WITH A 200' 1 3/4 150/75 NOZZLE AND A 200' 2 1/2 WITH A 250/75 NOZZLE, WHAT IS YOUR PDP?
FL1=.8(4^2)(2)=25.6
FL2=15.5(1.5^2)(2)=69.75+75=144.75
FL3=2(2.5^2)(2)=25+75=100
PDP=25.6+144.75+10=180.35
WHAT IS THE DEVICE THAT INJECTS THE CORRECT AMOUNT OF FOAM CONCENTRATE INTO THE WATER STREAM TO MAKE THE FOAM SOLUTION?
PROPORTIONER
WHAT TYPE OF HYDRANT RECEIVES WATER FROM TWO OR MORE DIRECTIONS?
CIRCULATING FEED OR LOOPED LINE
WHAT IS THE FORMULA FOR NET PUMP DISCHARGE PRESSURE?
NPDP=PDP-INTAKE READING
WHAT NOZZLE IS USED TO APPLY WATER TO VOIDS, ATTICS, OR OTHER AREAS INACCESSIBLE TO STANDARD FIRE STREAMS?
PIERCING NOZZLE
FDC SCENARIO, SUPPLYING AN FDC THROUGH 2 100' 3" LINES, CREW IS OPERATING ON THE 5TH FLOOR WITH A 200' 1 3/4 15/16 NOZZLE AND A 200' 2 1/2 250/75 NOZZLE, WHAT IS YOUR PDP?
EP=5(5-1)=20
FL1=.2(4.35^2)(1)=3.78
FL2=15.5(1.85^2)(2)=106.09+50=156
FL3=2(2.5^2)(2)=25+75=100
PDP=156+3.78+20+25=204.78=205
WHEN IS PUMP CERTIFICATION TESTING CONDUCTED?
BEFORE FINAL ACCEPTANCE OF THE VEHICLE
WHICH MEANS OF MOVING WATER USES A PRIMARY WATER SOURCE LOCATED AT A HIGHER ELEVATION THAN THE DISTRIBUTION SYSTEM?
GRAVITY SYSTEM
WHAT IS THE NOZZLE REACTION FORMULA FOR A SMOOTH BORE NOZZLE?
NR=1.57(D²)(NP)
WHAT ARE THREE TYPES OF MASTER STREAM APPLIANCES?
FIXED, COMBINATION, PORTABLE