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App Tech 2024 > Hydraulics Theory > Flashcards

Hydraulics Theory Flashcards

1
Q

50’ length of 1.88” hose contains how many gallons of water?

A

7.20

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2
Q

50’ length of 2.5” hose contains how many gallons of water?

A

12.74

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3
Q

50’ length of 3” hose contains how many gallons of water?

A

18.35

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4
Q

100 ‘ length of 4” hose contains how many gallons of water?

A

65.25

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5
Q

What is the pressure of the handline smooth bore nozzle?

A

50 psi (65 psi can be used for higher pressure)

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6
Q

What is the nozzle pressure for the master stream smooth bore?

A

80 psi (100 psi can be used to achieve higher flow)

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7
Q

For each foot of elevation above the pump. The pressure increase by how many psi?

A

0.434 psi

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8
Q

A master stream delivers more than how many gallons?

A

350 gallons

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9
Q

Formula for a rectangle or square

A

L’ x W’ x D’ x 7.5

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10
Q

1/2” tip size for handline gpm flow.

A

Fire Ground = 50
Theoretical = 53

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11
Q

7/8” tip size for handline gpm flow.

A

Fire Ground = 150
Theoretical = 161

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12
Q

15/16” tip size for handline gpm flow.

A

Fire Ground = 185
Theoretical= 185

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13
Q

1” tip size for handline gpm flow.

A

Fire Ground = 200
Theoretical = 210

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14
Q

1 1/8” tip size for handline gpm flow.

A

Fire Ground = 250
Theoretical = 266

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15
Q

1 1/4” tip size for handline gpm flow.

A

Fire Ground = 325
Theoretical = 328

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16
Q

1 1/4” tip size for master stream gpm flow.

A

Fire Ground = 400
Theoretical = 415

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17
Q

1 3/8” tip size for master stream gpm flow.

A

Fire Ground = 500
Theoretical = 502

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18
Q

1 1/2” tip size for master stream gpm flow.

A

Fire Ground = 600
Theoretical = 598

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19
Q

1 3/4” tip size for master stream gpm flow.

A

Theoretical = 814
Fire Ground = 800

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20
Q

2” tip size for master stream gpm flow.

A

Fire Ground = 1000
Theoretical = 1062

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21
Q

The 1 1/2” Akron Assault nozzle flows how many gallons per minute?

A

175 gpm

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22
Q

The 2 1/2” Akron fog nozzle is and adjustable flow nozzle that can flow how many gpm?

A

125-250 gpm

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23
Q

The Akron mercury monitor flows how many gpm?

A

500 gpm

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24
Q

Master stream fog nozzles have an operating range of how many gpm?

A

150-2000gpm

25
Q

Booster reel lines are usually how many feet long?

26
Q

Booster line adjustable fog nozzle can flow between how many gpm at what nozzle pressure.

A

12-60 gpm @ 100 psi nozzle pressure

27
Q

Forestry hoses come in what size sections?

A

50’ and 100’

28
Q

1” adjustable fog nozzle flows how many gpm’s? What is the nozzle pressure?

A

Between 12-60 gpm.
100 psi

29
Q

Decontamination showers flow how many gpm at what psi?

A

270 gpm at 75 psi

30
Q

Penetrating nozzles flow how many gpm at what psi?

A

125 gpm at 100 psi

31
Q

The 2 1/2” distributor nozzle flows how many gpms at what psi?

A

250 gpm at 100 psi

32
Q

The 1 1/2” distributor nozzle flows how many gpm at what psi?

A

95 gpm at 50 psi

33
Q

The 2 1/2 cellar nozzle flows how many gpm at what psi?

A

350 gpm at 100 psi

34
Q

The 1 1/2” cellar nozzle flows how many gpm at what psi?

A

160 gpm at 100 psi

35
Q

At what pressure are the 1 3/8”, 1 1/2”, 1 3/4” tips on the fixed smooth bore monitor flowed?

36
Q

At what pressure is the 2” tip on the fixed smooth bore monitor flowed?

37
Q

What are the flow and pressure settings for the task force tip automatic nozzle on the fixed monitor?

A

500 gpm - 90 psi
750 gpm - 110psi
1000 gpm - 120 psi
1250 gpm - 140 psi

38
Q

What are the flow setting and pressure for the Akron adjustable flow fixed monitor nozzle?

A

500 gpm - 100 psi
750 gpm - 110 psi
1000 gpm - 130 psi
1250 gpm - 140 psi

39
Q

What is the maximum inlet pressure for the Mercury Monitor?

40
Q

What are the friction loss coefficients for FCFRD hose sizes?

A

1” - 150
1 3/4” - 10
2” - 8
2 1/2” - 2
3” - 0.8
3 1/2” - 0.34
4” - 0.2
5” - 0.08
Two 3” - 0.2
4”, 3” - 0.09
Two 4” - 0.05

41
Q

What is the friction loss of ladder pipes?

42
Q

What is the friction loss of master streams?

43
Q

What is the friction loss of standpipes?

44
Q

What is the friction loss of gated wye?

A

10 psi (flowing over 350 gpm)

45
Q

What is the friction loss for elevation?

A

5 psi for every 10’ or floor

46
Q

What is the gpm and psi rating of the js-10?

A

100 gpm at 100 psi

47
Q

What is the flow rate of the foam eductor?

A

95-125 gpm

48
Q

What PDP must you have at the foam eductor?

49
Q

The foam eductor must be placed _____ from the pump panel and within _____ of the nozzle.

A

50’ and 200’

50
Q

Fairfax County engines carry a minimum of how many gallons of foam?

51
Q

Pierce recommends that CAFS only be used in lines up to how many feet in length for maximum effectiveness?

52
Q

Fairfax County CAFS hold how many gallons of water and foam?

A

750 gallons of water
40 gallons of class A foam
40 gallons of class B foam

53
Q

4” supply lines should be charged initially to what psi?

54
Q

All 3” supply lines should be charged to a minimum starting pressure of how many psi?

55
Q

All 4” and 3” supply lines used together should be charged to a minimum starting pressure of how many psi?

56
Q

Fairfax County pumps are rated at ______ gpm at ____ psi pressure

A

1500 gpm, 150 psi

57
Q

Standpipes should be charged to what initial starting pressure?

58
Q

Starting pressure for a sprinkler system is what psi?

59
Q

Starting pressure for a combination system is what psi?

App Tech 2024 (2 decks)

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