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Hydraulics > Hydraulics Handout > Flashcards

Hydraulics Handout Flashcards

1
Q

How would one determine Surface area of a circle

A. 758.2 x Diameter
B. .7854 x Diameter Squared
C. 5471 x Diameter Squared
D. .7857 x Diameter Squared

A

B. .7854 x Diameter Squared

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2
Q

How much does a gallon of water weigh?

A

8.3 pounds

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3
Q

How many gallons in a cubic foot of water?

A

7.5 gallons

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4
Q

In elevation pressure what is the equation for finding height when pressure is known?

A

2.3 x pressure

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5
Q

What is the PSI for a hi-rise fog nozzle?

A

75 psi

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6
Q

What solid stream tips does GFD utilize?

A

1 3/8”
1 1/2”
1 3/4”
2”

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7
Q

GPM flow for 2 1/2 fog

A

250 GPM

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8
Q

GPM for 1 3/4 High-rise

A

125 GPM

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9
Q

What is the intake pressure of water when no water is flowing?

A. Residual
B. Static
C. Flow

A

B. Static

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10
Q

What is the intake pressure of water after flowing water out of pump?

A. Residual
B. Static
C. Flow

A

A.Residual

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11
Q

What is the pressure of water when in motion or flowing through from pump?

A. Residual
B. Static
C. Flow

A

C. Flow

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12
Q

GPM flow of a 1 7/8 solid stream tip

A

900 GPM flow approx.

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13
Q

How much GPM does a Hi-rise solid stream tip with 60psi nozzle pressure flow?

A

200 GPM flow approx.

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14
Q

1 1/2 coefficient

A

24

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15
Q

What is the pressure loss for a Stang gun?

A. 20 PSI
B. 40 PSI
C. 25 PSI
D. 35 PSI

A

C. 25psi

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16
Q

What is the maximum PSI we can flow through 4” rubber jacketed supply line?

17
Q

What is the GPM of a 1” solid stream H/L nozzle?

18
Q

What is the GPM of a Foam eductor ?

19
Q

On the discharge outlet of a Foam Eductor do not exceed ___ percent of eductor pump pressure with hose friction loss, nozzle pressure and elevation.

A

70 percent

20
Q

1.85x1.85=

21
Q

PDP of GFD standard HZ standpipe?

22
Q

PSI of GFD 200’ 2 1/2” hand line

23
Q

GPM of 1 7/8” M/S

24
Q

2 1/2” @ 350GPM

25
Q

185 GPM HR S/S 150’

26
Q

210 GPM HR S/S 150’

27
Q

Tip for 13 psi FL per 100’

28
Q

2 1/2” @ 275GPM

29
Q

Master 1 1/4” GPM & FL per 100’

A

400GPM 3 per 100’

30
Q

Master stream 16psi per 100’ tip & GPM

A

1 7/8” 900GPM

31
Q

2 1/2” 7psi FL per 100’ = GPM

32
Q

All Master stream tip sizes

A 
1 1/4"
1 3/8" 
1 1/2"
1 5/8"
1 3/4"
1 7/8"
2"
33
Q

All S/S H/L tips

A

1” - 200
1 1/8” - 250
1 1/4” - 300

34
Q

60psi HR S/S

A

200GPM 150’ 150 psi

35
Q

add 10 psi to wye if:

A

total gpm exceeds 350

36
Q

Master stream 7psi per 100’ tip & GPM

A

1 1/2” 600gpm

Hydraulics (1 decks)

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