Hydraulic Calculator

Question 1

1”

Answer 1

Tip— 1”
GPM— 10/40
NP— 100
FL/100’— 25
100’— 125psi
200’— 150psi
300’— 175psi
400’— 200psi
500’— 225psi

Question 2

1 1/2’’ (18/80)

Answer 2

Tip— 1 1/2’’ spray
GPM— 18/80
NP— 75
FL/100’—15
100’— 90
200’— 105
300’— 120
400’— 135psi

Question 3

1 1/2’’ (MC)

Answer 3

Tip— spray (MC)
GPM— 125
NP— 75
FL/100’— 35
100’— 110psi
200’— 145
300’— 180
400’— 215psi

Question 4

1 3/4’’ (125 GPM noz)

Answer 4

Tip— spray (125 GPM tip)
GPM— 125
NP— 75
FL/100’— 25
100’— 100psi
200’— 125
300’— 150
400’— 175psi

Question 5

1 3/4’’ (MC)

Answer 5

Tip— spray (MC)
GPM— 200
NP— 75
FL/100’— 50
100’— 125
200’— 175
300’— 225
400’— 275

Question 6

2’’

Answer 6

Tip— spray
GPM— 200
NP— 75
FL/100’— 35
100’— 110psi
200’— 145psi**
300– 180
400– 215

Question 7

2 1/2’’ (MC)

Answer 7

Tip— spray & 1 1/4’’ ST
GPM— 325
NP— 50
FL/100’— 25
100’— 75psi
200– 100
300– 125
400— 150
500’— 175
600’— 200
700’— 225
750’— 237psi

Question 8

2 1/2’’ (1 1/4’’ SB)

Answer 8

Tip— 1 1/4’’ SB
GPM— 300
NP— 40
FL/100’— 20
100’— 60
200’— 80
300’— 100
400’— 120
600’— 140
700’— 160
750’— 170psi

Question 9

2 1/2’’ (1 1/2’’ SB) stookey

Answer 9

Tip— 1 1/2’’ SB
GPM— 530
NP— 60
FL/100’— 60
100’— 120
200— 180
300— 240
400’— 300

Question 10

4” (WB w/ 5/8’’ SB)

Answer 10

Tip— 5/8’’ SB (WB)
GPM— 105
NP— 80

Question 11

4’’ (WB w/ 3/4’’ SB)

Answer 11

Tip— 3/4’’ SB (WB)
GPM— 150
NP— 80

Question 12

4” (SPRAY AGS- 350)

Answer 12

Tip— AGS
GPM— 350
NP— 100
FL/100’— 3
100’— 103
200’— 106
300’— 109
400’— 112
500’— 115
600’— 118
700’— 121
750’— 122

Question 13

4” (SPRAY AGS- 500)

Answer 13

Tip- AGS
GPM— 500
NP— 100
FL/100’— 5
100’— 105
200’— 110
300’— 115
400’— 120
500’— 125
600’— 130
700’— 135
750’— 138

Question 14

4” (SPRAY AGS- 750)

Answer 14

Tip— AGS
GPM— 750
NP— 100
FL/100’— 11
100’— 111
200’— 122
300’— 133
400’— 144
500’— 155
600’— 166
700’— 177
750’— 183

Question 15

4” (SPRAY AGS- 1000)

Answer 15

Tip— AGS
GPM— 1000
NP— 100
FL/100’— 19
100’— 119
200’— 138
300’— 157
400’— 176
500’— 195
600’— 214
700’— 233
750’— 243

Question 16

4” (1 1/4’’ SB)

Answer 16

Tip— 1 1/4’’ SB (stackable)
GPM— 400
NP— 80
FL/100’— 3
100’— 83
200’— 86
300’— 89
400’— 92
500’— 95
600’— 98
700’— 101
750’— 103

Question 17

4” (1 1/2’’ SB)

Answer 17

Tip— 1 1/2’’ SB stackable)
GPM— 600
NP— 80
FL/100’— 7
100’— 87
200’— 94
300’— 101
400’— 108
500’— 115
600’— 122
700’— 129
750’— 133

Question 18

4” (1 3/4’’ SB)

Answer 18

Tip— 1 3/4’’ stackable
GPM— 800
NP- 80
FL/100’— 12
100’— 92
200’— 104
300’— 116
400’— 128
500’— 140
600’— 152
700’— 164
750— 176

Question 19

4” (2’’ SB)

Answer 19

Tip— 2’’ SB stackable
GPM— 1000
NP— 80
FL/100’— 19
100’— 99
200’— 118
300’— 137
400’— 156
500’— 175
600’— 194
700’— 213
750— 223

Question 20

4” (HF)

Answer 20

Tip— hydro foam
GPM— 660
NP— 100
FL/100’— 9
100’— 109
200’— 118
300’— 127
400’— 136
500’— 145
600’— 154
700’— 163
750’— 168

Question 21

LadderPipe

Answer 21

*pump additional 30 psi when static
Straight
1 1/2’’—150
1 3/4’’— 170
Hydro foam— 175
2’’— 190

Spray—
350 GPM— 140
500 GPM— 160
750 GPM— 180
1000 GPM— 220

Hydro foam 660 GPM— 175

Question 22

Portable monitor

Answer 22

350 GPM— 105
500 GPM— 110
750 GPM— 115
1000 GPM— 125

Hydro foam 660 GPM— 115, max 1000 GPM

Question 23

Hydro foam nozzle (operation)

Answer 23

660 GPM —> 100 psi NP

JRC: 50 psi constant (add 40 psi for ladderpipe)
35 psi FL/100’ of 1 1/2’’
1000’ max of 1 1/2’’(450 psi) from discharge side o the JRC

Question 24

1 1/2’’ in- line foam educator

Answer 24

** always use 125 GPM spray tip

Hose from educator to nozzle
1 1/2’’— 150’ constant
1 3/4’’— 250’ constant

*pump to educator inlet: 200 psi

Question 25

Barricade Nozzle

Answer 25

Tip—
GPM— 20
NP— 75 psi
FL/100’ of 1’’— 10 psi
Appliance— 60 psi
100’— 145psi

Question 26

Foam tender

Answer 26

Pump 100 psi to the inlets

Question 27

Helicopter filling

Answer 27

95 psi + 5psi/ 100’ of 4’’ (360 GPM)

Question 28

Relay

Answer 28

Pump 180 psi @ discharge gate —> 900 GPM @ 10 psi delivered to next pump

Question 29

Progressive hose lay

Answer 29

150 psi + 15 psi/ pack +/- 10 psi/ grade

(1)— 165 psi
(2)— 180
(3)— 195
(4)— 210
(10)— 300psi

Question 30

Metro rail red line FDC

Answer 30

125 psi

Question 31

High Rise Hose Packs

Answer 31

25 psi appliance
5 psi/ floor above ground level
___ hose lay

• 25 (SP) + 5/fl + 145 (x2 HRHP)= 170 + 5psi/ fl

Question 32

Friction factors

Answer 32

2 -2 1/2’’ = (3.6) 4
3- 2 1/2’’= (7.75) 8
4- 2 1/2’’= (12.4) 12

1- 4’’= 11
2- 4’’= 42

Question 33

% of grade

Answer 33

10%= 9/2= 4.5
12 1/2%= 11/2= 5.5
15%= 13/2= 6.5

20%= 9
25%= 11
30%= 13