Math Flashcards

1
Q

1.75 square

A

3.0625

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2
Q

1.5 square

A

2.25

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3
Q

1.25 square

A

1.5625

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4
Q

1.25 inch smooth bore flows?

A

328 or 325gpm

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5
Q

Coefficient for 4”

A

.2

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6
Q

Coefficient for 1.88 or ffx attack line

A

10

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7
Q

Gpm of standard crosslay nozzles

A

175gpm at 50psi

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8
Q

15/16” smooth bore flows?

A

185gpm

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9
Q

1.125 or 11/8th inch smooth bore flows?

A

266 or 250gpm

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10
Q

1.25 master stream smooth bore flows?

A

415 or 400gpm

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11
Q

1 3/8th inch master stream smooth bore?

A

502 or 500gpm

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12
Q

1.50inch smooth bore master stream flows?

A

598 or 600gpm

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13
Q

1.75inch sb master stream flows?

A

813 or 800gpm

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14
Q

This smooth bore master stream nozzle flows 1063 or 1000gpm?

A

2 inch

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15
Q

Mercury Monitor flow and Psi

A

500gpm max flow…150psi starting pressure. 100psi fog tio, 80 psi smooth bore.

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16
Q

Coefficient for 2 inch

17
Q

Coefficient for 3”

18
Q

Appliance loss for a master stream?

19
Q

Add 10 psi to your friction loss calculations for flows of what gpm?

A

Over 350 gpm

20
Q

When flowing under 350gpm how much friction loss must you add for the GPM?

21
Q

Elevation psi at a high rise?

A

.5psi per floor above the connection

22
Q

Starting pressure for standpipe or sprinkler system?

23
Q

Appliance loss for a ladder pipe?

24
Q

Coefficient for dual 3”lines

25
Coefficient for one 4" and one 3" line?
0.09
26
Coefficient for dual 4" lines?
0.05
27
Like volumes Formula
Percentage Drop=(sp-rp)100/sp
28
``` Percentage Drop: 0-10% 11-15% 16-25% Greater than 25% ```
3 times original amount 2 times 1 times No more lines
29
Square root of 100
10
30
Square root of 80
9
31
Square root of 50
7
32
Square root of 150
12