Engineers test
Terms
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- Coefficient for 1 1/2 inch hose
- 24 FL
- Coefficient for 1 3/4 inch hose
- 10 FL
- Coefficient for 2.5 inch hose
- 2 FL
- Coefficient for 3 inch hose w/2.5 inch couplings
- .8 FL
- Coefficient for 4 inch hose
- .2 FL
-
Intake hydrant drop:
25% or greater you can? - Need more water. Reduce or feather the panal.
-
Intake hydrant drop:
16 - 25% drop, you can? - Same amount, no more.
-
Intake hydrant drop:
0 - 10% drop, you can? - 3 like lines.
- Red hydrant tops =
-
Class C Hydrant
499 GPM or lower. - Orange hydrant tops =
-
Class B Hydrant
500 - 999 GPM - Green Hydrant tops =
-
Class A Hydrant
1000 to 1499 GPM - Lt Blue Hydrant tops =
-
Class AA Hydrant
1500 GPM, or above. - FL =
- CQ2L
- EP =
- EP = NP + FL + A + +/-
- Coefficients for standpipe:
- Department standard: 25 + lines
-
Intake drop:
Process to add lines: -
1) Take Static reading on intake after hitting source.
2) Get residual reading.
3) Take Static reading, and - residual reading.
4)Times difference by 100.
5)Take that difference and divide by the static reading. -
Nozzle Pressure:
Square root of 50 is: - 7.07
-
Nozzle Pressure:
Square root of 80 is: - 8.94
-
Nozzle Pressure:
Square root of 100 is: - 10
- 7/8 nozzle =
- 150 gpm
- Appliance/wye/siamese = what psi?
- 10 psi
- Monitor/standpipe psi
-
15 psi department
25 IFSTA - Fog nozzle psi =
- 100 psi
-
Rule of thumb:
EP for 1 1/2, and 1 3/4 preconnects = - 135 psi
- Supplying (relay) another engine at?
- 25+ friction loss
-
Q2 Friction loss:
125 gpm = - 1.56
-
Q2 Friction loss:
150 gpm = - 2.25
-
Q2 Friction loss:
175 gpm = - 3.06
-
Q2 Friction loss:
225 gpm = - 5.06
-
Q2 Friction loss:
250 gpm = - 6.25
-
Q2 Friction loss:
275 gpm = - 7.56
-
Q2 Friction loss:
325 gpm = - 10.56
-
Q2 Friction loss:
350 gpm = - 12.25
-
Q2 Friction loss:
375 gpm = - 14.06
-
Q2 Friction loss:
425 gpm = - 18.06
-
Q2 Friction loss:
450 gpm = - 20.25
-
Q2 Friction loss:
475 gpm = - 22.56
- Determining Elevation for Structures/wildland:
-
Structure Add 5 psi per floor - 1.
+/- .5 x elevation. -
Hydrant drop:
Formula for hydrant drop: -
% drop =
Static - residual x 100 divide by static. - Hydrant drops from intake readings:
-
0-10%: 3 times amount
11-15% drop: 2 times amount
16-24% drop: same amount
25+ : look elsewhere - Class A Foam consentration pumping level?
-
.1 to 3%
.3 to .5 w/fog nozzles - Foam percentage for Fire Attack, and Overhaul?
- .2 to .5%
-
Exposer protection foam %, with standard fog nozzle?
(Class A foam) - .5 to 1%
- Smooth bore tip sizes on ME251:
- 1 3/8, 1 1/2, 1 3/4, and 2"
- Smooth bore tips on E251A:
- 1, 1 1/4, 1 1/2, 1 3/4, and 2"
- Smooth bore tips on WT251:
- 1, 1 1/8, 1 3/4
-
Hose Compliments:
ME251: Feet of 4"? - 700'of 4"
-
Hose Compliments:
ME251: How many feet of 2 1/2? - 1400' total, including the 200' rear preconnect. 1200 in the bed.
-
Hose compliments:
ME251: Number of feet of 1 3/4? -
750' total
2- 200' preconnect = 400'
150' freeway/foam line (rear)
200' in high rise packs -
Hose Compliments:
ME251: Number of 1 1/2? - 200' 1 1/2 wildland pack
-
Hose Compliments:
ME251: 1 inch hose? - 200' booster real
-
Hose Compliments:
E251A: Number of feet of 4"? - 700'
-
Hose Compliments:
E251A: Number of feet of 2 1/2? - 1400' total, including the 200' rear preconnect. 1200 in the bed.
-
Hose Compliments:
E251A: Number of feet of 1 3/4? -
750' total
2- 200' preconnect = 400'
150' freeway (rear)
200' in high rise packs -
Hose Compliments:
WT251: Number of 2 1/2? -
800' total
2 beds of 400' each. -
Hose Compliments:
WT251: Number of feet of 1 1/2? -
1600' total
400' x2 preconnects
1200' in 6 hosepacks. -
Hose Compliments:
WT251: Feet of 1" booster? - 200'
- Nozzles on ME251: Main nozzles:
-
2- 2 1/2 TFT 50-350 gpm Automatic
3- 1 3/4 TFT 70-200 gpm Midmatics
1- TFT Midmatic duel pressure 70-200 gpm
Auto masterstream TFT 150-1250 gpm monitor
1-1" booster TFT 10-125 gpm - Nozzles on ME251: Spare nozzles on engine?
-
Western Fire Equip. combination
1 1/2 KK automatic (highrise) - Nozzles on E251A, main nozzles?
-
2- 2 1/2 TFT 50-350 gpm automatic
3- 1 3/4 TFT midmatic 70-200 gpm
2-TFT 10-125 auto booster
1 Akron 1000 gpm monitor - Compliment nozzles on E251A?
-
2 1/2 Akron auto.
2-1 1/2 Akron adjustable gallonage
1 cellar nozzle 1 1/2
I plastic red wildland 1 1/2 - Nozzles on WT251 Main nozzles?
-
3- 1 1/2 TFT Twister 20 - 95 gpm
1- 2 1/2 TFT 150-1250 monitor
1 TFT booster 10-125 gpm - Spare nozzles on WT251:
-
1" FS lateral
1" fs plastic wildland
2 1/2 Akron combination
1 1/2 KK nozzle -
Department Standard
1 3/4 Preconnects
EP for 100 GPMS - EP = 120
-
Department Standard
1 3/4 Preconnects
EP for 125 GPMS - EP = 123
-
Department Standard
1 3/4 Preconnects
EP for 150 GPMS - EP = 133
-
Department Standard
1 3/4 Preconnects
EP for 175 GPMS - EP = 146
-
Department Standard
1 3/4 Preconnects
EP for 200 GPMS - EP = 160
-
Department Standard
FREEWAY 1 3/4 Preconnect
EP for 100 GPMS - EP = 115
-
Department Standard
2 1/2 Preconnect
EP for 100 GPM - EP = 104
-
Department Standard
2 1/2 Preconnect
EP for 125 GPM - EP = 106
-
Department Standard
2 1/2 Preconnect
EP for 150 GPM - EP = 109
-
Department Standard
2 1/2 Preconnect
EP for 175 GPM - EP = 112
-
Department Standard
2 1/2 Preconnect
EP for 200 GPM AND 250 GPM -
200 GPM: EP = 116
250 GPM: EP = 125