Hydraulics

Question 1

What is the theoretical flow for 1/2

Answer 1

53 gpm

Question 2

What is the theoretical flow for 7/8

Answer 2

161 gpm

Question 3

What is the theoretical flow for 15/16

Answer 3

185 gpm

Question 4

What is the theoretical flow for 1 inch nozzle

Answer 4

210 gpm

Question 5

What is the theoretical flow for 1 and 1/8

Answer 5

266 gpm

Question 6

What is the theoretical flow for 1 and 1/4

Answer 6

328 gpm

Question 7

What is the theoretical flow for 1 and 3/16

Answer 7

296 gpm

Question 8

What is formula for finding like volumes?

Answer 8

(SP-RP)100/SP

Question 9

What is the theoretical flow for a master stream that is 1 1/4

Answer 9

415 gpm

Question 10

What is the theoretical flow for a master stream that is 1 3/8

Answer 10

502 gpm

Question 11

What is the theoretical flow for a master stream that is 1 1/2

Answer 11

598 gpm

Question 12

What is the theoretical flow for a master stream that is 1 3/4

Answer 12

814 gpm

Question 13

What is the theoretical flow for a master stream that is 2in

Answer 13

1062

Question 14

What is the formula for calculating smooth bore nozzle discharge?

Answer 14

Gpm= 29.7 x diameter squared x square root of nozzle pressure

Question 15

What is the square root of 50?

Answer 15

7.07

Question 16

What is the square root of 80?

Answer 16

8.94

Question 17

What is the GPMs and pressure of the decontamination shower?

Answer 17

270 GMP at 75 PSI

Question 18

How long is the booster reels usually?

Answer 18

150 feet

Question 19

What is the flow and nozzle pressure of a booster reel?

Answer 19

12 to 60 GPMs at 100 PSI

Question 20

What is the flow and nozzle pressure of the JS-10 nozzle

Answer 20

100 GPMs at 100 PSI

Question 21

How far from the pump panel should the foam inductor be? How many feet should be past it?

Answer 21

50 feet with 200 feet past

Question 22

What pressure should the foam inductor be pumped?

Answer 22

200 PSI at 95 to 125 gpm

Question 23

What is the formula for determining nozzle reaction of a smooth bore?

Answer 23

1.57 X D2 x NP

Question 24

What is the formula for determining nozzle reaction for a fog nozzle?

Answer 24

0.0505 x Q x square root of nozzle pressure

Question 25

What is the friction loss for a 50ft section of 1 3/4 with a fog nozzle?

Answer 25

15.3

Question 26

What is the friction loss for a 50ft section of 1 3/4 with a 15/16 nozzle?

Answer 26

17.1

Question 27

What is the friction loss for a 50ft section of 2 1/2 with a 1 3/16 nozzle?

Answer 27

8.76

Question 28

What is the friction loss for a 50ft section of 2 1/2 with a 1 1/8 nozzle?

Answer 28

7.08

Question 29

What is the friction loss for a 50ft section of 2 1/2 with a 1 1/4 nozzle?

Answer 29

10.75

Question 30

What is the weight of 1 cubic foot of water?

Answer 30

62.5 lbs

Question 31

How many GPMs can the red fog nozzle, commonly used with forestry hose, flow and with that pressure?

Answer 31

22 GPMs at 100 psi

Question 32

What pressure and do you flow a 2 1/2 distributed nozzle, and what is its flow?

Answer 32

250 gpm at 100 psi

Question 33

What pressure and do you flow a 1 1/2 distributed nozzle, and what is its flow?

Answer 33

95 gpm at 50 psi

Question 34

What pressure and do you flow a 1 1/2 cellar nozzle, and what is its flow?

Answer 34

160 gpm at 100 psi

Question 35

What pressure and do you flow a 2 1/2 cellar nozzle, and what is its flow?

Answer 35

350 gpm at 100 psi

Question 36

What is the mercury monitor maximum inlet pressure?

Answer 36

150 PSI

Question 37

What is the coefficient of 5 inch supply line

Answer 37

0.08

Question 38

What is the maximum safe PDP during normal operations

Answer 38

250 psi

Question 39

When Intake pressure is above what pressure should the pump be ran in pump gear

Answer 39

50 psi Hydraulics manual pg 50

Question 40

What GPMs with the foam inductor flow at 200 psi?

Answer 40

95 to 125 GPMs Hydraulics manual pg 31

Question 41

What is the coefficient for a 1 inch hose?

Answer 41

150

Question 42

What is the coefficient for a 1 3/4 inch hose?

Answer 42

10 (15.5 per IFSTA)

Question 43

What is the coefficient for a 2 inch hose?

Answer 43

8

Question 44

What is the coefficient for a 2 1/2 inch hose?

Answer 44

2

Question 45

What is the coefficient for a 3 inch hose?

Answer 45

0.8

Question 46

What is the coefficient for a 3 1/4 inch hose?

Answer 46

0.34

Question 47

What is the coefficient for a 4 inch hose?

Answer 47

0.2

Question 48

What is the coefficient for a 5 inch hose?

Answer 48

0.08

Question 49

What is the coefficient for a dual 3 inch hose?

Answer 49

0.2

Question 50

What is the coefficient for one 3 and one 4 inch hose?

Answer 50

0.09

Question 51

What is the coefficient for dual 4 inch hose?

Answer 51

0.05

Question 52

I’m a water relay what is your starting pressure for a 3 inch line

Answer 52

100 psi

Question 53

In a water relay what is your starting pressure for a 4 and a 3 inch line

Answer 53

100 psi

Question 54

A 50 foot section of 1.75 hose contains how many gallons of water?

Answer 54

6.24 gallons

Question 55

A 50 foot section of 1.88 hose contains how many gallons of water?

Answer 55

7.20 gallons

Question 56

A 50 foot section of 2.5 hose contains how many gallons of water?

Answer 56

12.74 gallons

Question 57

A 50 foot section of 3 inch hose contains how many gallons of water?

Answer 57

18.35 gallons

Question 58

A 100 foot section of 4 inch hose contains how many gallons of water?

Answer 58

65.25 gallons

Question 59

A 100 foot section of 5 inch hose contains how many gallons of water?

Answer 59

101.94 gallons