Hydraulics

Question 1

Pump discharge pressure formula

Answer 1

PDP=NP+FL+AP+/-EP

Question 2

PDP(Supply)

Answer 2

RP(20)+FL+AP+/-EP

Question 3

Available Water Remaining

Answer 3

(SP-RP)x100) ~SP

Question 4

GPM

Answer 4

29.7 x d2 x square root of NP
Squat root for 80 = 8.94
Squat root for 50 = 7.07

Question 5

NP for smooth bore

Answer 5

50

Question 6

NP Akron Fog Tip

Answer 6

50psi

Question 7

NP Smooth Bore master streams

Answer 7

80psi

Question 8

Master stream Fog Tips

Answer 8

100psi

Question 9

Coefficient for 1.75/ 1-3/4 hose

Answer 9

10 fire ground /15.5 theoretical

Question 10

Coefficient for 1” hose

Answer 10

150

Question 11

Coefficient for 2” hose

Answer 11

8

Question 12

Coefficient for 2-1/2 hose

Answer 12

2

Question 13

Coefficient for 3” hose

Answer 13

0.8

Question 14

Coefficient for 4” hose

Answer 14

.2

Question 15

Coefficient for 5” hose

Answer 15

.08

Question 16

Coefficient for dual 3” hose

Answer 16

.2

Question 17

Coefficient for 4” + 3” hose

Answer 17

.09

Question 18

Coefficient for dual 4” hose

Answer 18

0.05

Question 19

GPM Fog nozzle @50psi

Answer 19

175

Question 20

Smooth bore @50psi

Answer 20

185/ 15/16 tip slug

Question 21

GPM 2 1/2 blitz line SB

Answer 21

300 foreground/// 296 theoretical
1” 3/16 tip SB

Question 22

GPM Mercury Monitor

Answer 22

500 Fog 500 SB (AP- 10)

Question 23

Appliance Loss - Less than 350gpm

Answer 23

0

Question 24

Appliance Loss - 350gpm +

Answer 24

10

Question 25

Appliance Loss - Ladder pipe

Answer 25

25

Question 26

Appliance Loss - Master stream

Answer 26

25

Question 27

Appliance Loss - stand pipe

Answer 27

25

Question 28

Appliance loss - Large appliances

Answer 28

25

Question 29

Master stream 1” 1/4 flows

Answer 29

400 fire ground// 415 theoretical

Question 30

Master stream 1” 3/8 tip flows

Answer 30

500 fire ground// 502 theoretical

Question 31

Master stream 1” 1/2 flows

Answer 31

600 fireground /// 598 theoretical

Question 32

Master stream 1” 3/4 flows

Answer 32

800 fireground/// 814 theoretical

Question 33

Master stream 2” flows

Answer 33

1000 fireground /// 1062 theoretical

Question 34

Starting pressure for 100ft 1”3/4

Answer 34

80

Question 35

Starting pressure for 150ft 1” 3/4

Answer 35

95

Question 36

Starting pressure for 200ft 1” 3/4

Answer 36

110

Question 37

Starting pressure for 250” 1 3/4

Answer 37

125

Question 38

Starting pressure for 300ft 1” 3/4

Answer 38

140

Question 39

Starting pressure for 400ft 1” 3/4

Answer 39

170

Question 40

Starting pressure for 100ft 1” 3/4 SB tip

Answer 40

85

Question 41

Starting pressure for 150ft 1”3/4 SB

Answer 41

100

Question 42

Starting pressure for 200ft 1”3/4 SB

Answer 42

120

Question 43

Starting pressure for 250ft 1”3/4 sb

Answer 43

135

Question 44

Starting pressure for 300ft 1”3/4 SB

Answer 44

150

Question 45

Starting pressure for 350ft 1”3/4 SB

Answer 45

170

Question 46

Starting pressure for 400ft 1”3/4 SB

Answer 46

185

Question 47

Starting pressure for 200 ft 2” 1/2

Answer 47

85

Question 48

Starting pressure for 250ft 2” 1/2

Answer 48

95

Question 49

Starting pressure for Deck Gun

Answer 49

Fog - 125 SB 105

Question 50

Starting RPM for drafting

Answer 50

1200

Question 51

1.75x1.75

Answer 51

3.06

Question 52

1.85x1.85

Answer 52

3.42

Question 53

2.96x2.96

Answer 53

8.76

Question 54

100ft of 3” for Mercury monitor

Answer 54

20 psi

Question 55

100ft 1” 3/4 w fog nozzle

Answer 55

30 psi

Question 56

100ft 2” 1/2 with SB

Answer 56

18 psi