Hydraulics

Question 1

PDP of 100 psi nozzle 1 3/4” preconnects

Answer 1

120, 145, 180 psi = 100, 150, 200 gpm

Question 2

PDP of 100 psi nozzle 2 1/2” preconnects

Answer 2

115, 130, 140 psi = 200, 250, 300 gpm

Question 3

PDP of 2 1/2” preconnect with 1 1/4” smooth bore nozzle

Answer 3

95 psi = 325 gpm

Question 4

Tip pressure for smooth bore hand line

Answer 4

50 psi

Question 5

Tip pressure for smooth bore master stream

Answer 5

80 psi

Question 6

Tip pressure for fog tip hand line

Answer 6

100 psi or 75 psi

Question 7

Friction loss per 100’ of 4” hose

Answer 7

2, 4, 6, 8, 10, 12, 15, 20 from 300-1000 gpm

Question 8

Friction loss per 100’ of 5” hose

Answer 8

2, 2, 3, 4, 5 from 600-1000 gpm

Question 9

1/2” solid bore tip gpm

Answer 9

55 gpm

Question 10

5/8” solid bore tip gpm

Answer 10

80 gpm

Question 11

3/4” solid bore tip gpm

Answer 11

120 gpm

Question 12

7/8” solid bore tip gpm

Answer 12

160 gpm

Question 13

15/16” solid bore tip gpm

Answer 13

185 gpm

Question 14

1” solid bore tip gpm

Answer 14

210 gpm

Question 15

1 1/8” solid bore tip gpm

Answer 15

265 gpm

Question 16

1 3/16” solid bore tip gpm

Answer 16

295 gpm

Question 17

1 1/4” solid bore tip gpm

Answer 17

325 gpm

Question 18

1 3/8” master stream gpm

Answer 18

500 gpm

Question 19

1 1/2” master stream gpm

Answer 19

600 gpm

Question 20

1 3/4” master stream gpm

Answer 20

800 gpm

Question 21

2” master stream gpm

Answer 21

1000 gpm

Question 22

2 1/4” master stream gpm

Answer 22

1300 gpm

Question 23

2 1/2” master stream gpm

Answer 23

1700 gpm

Question 24

2 3/4” master stream gpm

Answer 24

2000 gpm

Question 25

PDP of Blitzfire 2 1/2” preconnect with fog tip

Answer 25

160 psi = 300 gpm, 205 psi = 450 gpm

Question 26

PDP of Blitzfire 2 1/2” preconnect with solid bore tip

Answer 26

205 psi, 1 1/2” tip = 500 gpm, 210 psi, 1 3/8” tip = 500 gpm

Question 27

Pumping a sprinkler system

Answer 27

150 psi at FDC

Question 28

Relay pumping equation

Answer 28

FL + 20 psi minimum (100 psi start as default)

Question 29

Ladder supply

Answer 29

185 psi to the base, 2 supply lines to tiller truck

Question 30

Field hydraulics rule for 1 3/4” friction loss

Answer 30

10, 20, 40 psi for 100, 150, 200 gpm