Hydraulics Chart Flashcards by Alfred Gonzalez

Q

GPM for Smooth bore nozzles (monitor) - 1 3/8”

A

500gpm

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Q

1 3/4” hose friction loss coefficient

A

15.5

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Q

What is the max flow of truck 11

A

1250gpm

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Q

formula for EP (elevation pressure)

A

EP= 0.5(height in ft.)

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Q

Square root of 50

A

7

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Q

initial operating pressure: sprinkler system@FDC

A

150psi

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Q

when drafting, is pump set to volume or pressure?

A

volume

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Q

Masterstream Fog nozzle pressure

A

100psi

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Q

What’s the square root of 80

A

9

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Q

how many gallons of water are per cubic foot

A

7.5 gallons

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Q

3” hose friction loss coefficient

A

0.8

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Q

formula for EP in multistory building

A

EP=(5.0 psi) (#of stories - 1)

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Q

when relay pumping, what should your pressure stay below?

A

200psi

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Q

how many cubic inches of water are there in a gallon

A

231

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Q

what is the RPM range for drafting

A

1000-1300 RPM

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Q

GPM for smooth bore nozzles (monitor) - 2”

A

1000gpm

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Q

how much does a gallon of water weigh

A

8.35lbs

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Q

what should your PSI be at the inlet of your engine when relay pumping?

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A

20psi

Q

GPM for smooth bore nozzles (monitor) - 1 1/2”

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A

600gpm

Q

GPM for smooth bore nozzles (monitor) - 1 3/4”

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A

800gpm

Q

back or head pressure (+/-) per floor

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A

5.0psi per floor (above 1st floor)

Q

what is the PSI required at the eductor inlet for the Foam Elkhart

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A

200psi

Q

What’s the square root of 100?

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A

10

Q

What’s the FL to the trucks trimese?

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A

25psi

Initial Operating pressure: Freeway; blitz line

125psi

monitor base friction loss

15psi

Back or head pressure (+/-) per foot

0.5psi per foot

Wye or siamese friction loss

0psi

Psi of handheld fog nozzles

100psi

Masterstream smooth bore nozzle pressure

80psi

initial operating pressure: pre-connect

150psi

1" hose friction loss coefficient

150

4" hose friction loss coefficient

0.2

1 1/2" hose friction loss coefficient

24

Standpipe friction loss

25psi +BP (back pressure)

1 lb of water will raise how many feet

2.31 feet

4-way valve friction loss

15psi

.434lb of water will raise how many feet

1 foot

how many lbs of water are there per cubic foot

62.5lbs

2 1/2" hose friction loss coefficient

2

Handheld Fog nozzle pressure

100psi

IOP blitz line w/wye - 2 lines

150psi

IOP of blitz line w/eye, 1 line

130psi

IOP of any hose line initially not known

125psi