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Engineers exam > Hydraulics Chart > Flashcards

Hydraulics Chart Flashcards

1
Q

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

A

500gpm

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2
Q

1 3/4” hose friction loss coefficient

A

15.5

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3
Q

What is the max flow of truck 11

A

1250gpm

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4
Q

formula for EP (elevation pressure)

A

EP= 0.5(height in ft.)

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5
Q

Square root of 50

A

7

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6
Q

initial operating pressure: sprinkler system@FDC

A

150psi

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7
Q

when drafting, is pump set to volume or pressure?

A

volume

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8
Q

Masterstream Fog nozzle pressure

A

100psi

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9
Q

What’s the square root of 80

A

9

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10
Q

how many gallons of water are per cubic foot

A

7.5 gallons

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11
Q

3” hose friction loss coefficient

A

0.8

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12
Q

formula for EP in multistory building

A

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

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13
Q

when relay pumping, what should your pressure stay below?

A

200psi

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14
Q

how many cubic inches of water are there in a gallon

A

231

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15
Q

what is the RPM range for drafting

A

1000-1300 RPM

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16
Q

GPM for smooth bore nozzles (monitor) - 2”

A

1000gpm

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17
Q

how much does a gallon of water weigh

A

8.35lbs

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18
Q

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

A

20psi

19
Q

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

A

600gpm

20
Q

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

A

800gpm

21
Q

back or head pressure (+/-) per floor

A

5.0psi per floor (above 1st floor)

22
Q

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

A

200psi

23
Q

What’s the square root of 100?

A

10

24
Q

What’s the FL to the trucks trimese?

A

25psi

25
Q

Initial Operating pressure: Freeway; blitz line

A

125psi

26
Q

monitor base friction loss

A

15psi

27
Q

Back or head pressure (+/-) per foot

A

0.5psi per foot

28
Q

Wye or siamese friction loss

A

0psi

29
Q

Psi of handheld fog nozzles

A

100psi

30
Q

Masterstream smooth bore nozzle pressure

A

80psi

31
Q

initial operating pressure: pre-connect

A

150psi

32
Q

1” hose friction loss coefficient

A

150

33
Q

4” hose friction loss coefficient

A

0.2

34
Q

1 1/2” hose friction loss coefficient

A

24

35
Q

Standpipe friction loss

A

25psi +BP (back pressure)

36
Q

1 lb of water will raise how many feet

A

2.31 feet

37
Q

4-way valve friction loss

A

15psi

38
Q

.434lb of water will raise how many feet

A

1 foot

39
Q

how many lbs of water are there per cubic foot

A

62.5lbs

40
Q

2 1/2” hose friction loss coefficient

A

2

41
Q

Handheld Fog nozzle pressure

A

100psi

42
Q

IOP blitz line w/wye - 2 lines

A

150psi

43
Q

IOP of blitz line w/eye, 1 line

A

130psi

44
Q

IOP of any hose line initially not known

A

125psi

Engineers exam (12 decks)

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