Fire Ground Hydraulics

Question 1

IOP Highway & Blitz Line

Answer 1

125psi

Question 2

IOP Pre-Connect Cross-Lays

Answer 2

150psi

Question 3

IOP Blitz line w/ Wye, 1 line

Answer 3

130psi

Question 4

IOP, Blitz line w/ Wye 2 lines

Answer 4

150psi

Question 5

IOP Sprinkler System @ FDC

Answer 5

150psi

Question 6

IOP if not listed

Answer 6

125psi

Question 7

Friction loss: Standpipe

Answer 7

25psi + Back-pressure

Question 8

Friction loss: Portable Monitor

Answer 8

15psi

Question 9

Friction loss: 4 Way Monitor

Answer 9

15psi

Question 10

Friction loss: Wye or Siamese

Answer 10

0psi

Question 11

Nozzle pressure: Handheld Fog

Answer 11

100psi

Question 12

Nozzle Pressure: Masterstream Fog

Answer 12

100psi

Question 13

Nozzle Pressure: Masterstream Smooth Bore (SB)

Answer 13

80psi

Question 14

Back or Head pressure (+-): psi per foot

Answer 14

.5

Question 15

Back or Head pressure (+-): psi per floor

Answer 15

5 psi per floor (above first floor)

Question 16

Friction loss Coefficient : 1”

Answer 16

150

Question 17

Friction loss Coefficient: 1 1/2”

Answer 17

24

Question 18

Friction loss Coefficient: 1 3/4”

Answer 18

15.5

Question 19

Friction loss Coefficient: 2 1/2”

Answer 19

2

Question 20

Friction loss Coefficient: 3”

Answer 20

0.8

Question 21

Friction loss Coefficient: 4”

Answer 21

0.2

Question 22

SB Monitor nozzle sizes (stack tips)

Answer 22

1 3/8”
1 1/2”
1 3/4”
2”

Question 23

GPM SB nozzle 1 3/8”

Answer 23

500gpm

Question 24

GPM SB nozzle 1 1/2”

Answer 24

600gpm

Question 25

GPM SB nozzle 1 3/4”

Answer 25

800gpm

Question 26

GPM SB nozzle 2”

Answer 26

1000gpm

Question 27

Gallons per cubic foot

Answer 27

7.5

Question 28

Pounds per cubic foot

Answer 28

62.5

Question 29

Pounds per gallon

Answer 29

8.35

Question 30

Cubic inches per gallon

Answer 30

231

Question 31

1 pound will raise ____feet?

Answer 31

2.31

Question 32

_____pounds will raise 1 foot?

Answer 32

.434

Question 33

Volume of a rectangle equation? (C= capacity in gallons)

Answer 33

C= LWH x 7.5

Question 34

Volume of a cylinder equation? (C= capacity in gallons)

Answer 34

C= 6(D^2)H

Question 35

FL for 100’ of 1 1/2” FOG/100psi @ 40gpm

Answer 35

4

Question 36

FL for 100’ of 1 3/4 FOG/100psi @ 125gpm

Answer 36

24

Question 37

FL for 100’ of 2 1/2” FOG/100psi @ 250gpm

Answer 37

13

Question 38

FL for 100’ of 3” FOG/100psi @ 250gpm

Answer 38

5

Question 39

Portable monitor operations: FL for 100’ of 3” (2 lines) FOG/100psi

Answer 39

20

Question 40

Portable monitor operations: FL for 100’ of 3” ( 2 lines) SB/80psi @500 gpm

Answer 40

5

Question 41

Portable monitor operations: FL for 100’ of 3” (2 lines) SB/80psi @ 600gpm

Answer 41

7

Question 42

Portable monitor operations: FL for 100’ of 3” (2 lines) SB/80psi @800gpm

Answer 42

13

Question 43

Portable monitor operations: FL for 100’ of 3” (2 lines) SB/80psi @1000gpm

Answer 43

20