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1. Charts In Book > Formulas > Flashcards

Formulas Flashcards

1
Q

Determine the Flow of Solid Stream Nozzle

A

GPM= 29.7 x D² x √NP

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2
Q

Nozzle Reaction Solid Stream Fire ground

A

NR= Q/3

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3
Q

Nozzle Reaction Fog Nozzle

A

NR=.0505x Q x √NP

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4
Q

Nozzle Reaction Fog Nozzle Fire Ground

A

NR= Q/2

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5
Q

Friction Loss

A

FL=CxQ²xL

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6
Q

Elevation Pressure Loss

A

EP=0.5x Height in feet

EP=(5psi) x (number of stories -1)

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7
Q

Pressure Loss for elevated Master stream

A

25psi (water way and master stream app.)

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8
Q

Net Pump Discharge Pressure

A

NPDP= PDP-Intake Reading

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9
Q

Pump Discharge Pressure

A

PDP=NP+TPL

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10
Q

F.L. Condensed Q 3”/4”/5”

A

FL=Q²
FL=Q²÷5
FL=Q²÷15

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11
Q

% Method (pg348)
Percentage Drop=
Additional Lines Available?

A 
PD=(static-residual)(100)÷static
0-10%= 3 lines more
11-15%=2 Lines more
16-25%=Same amount of lines
\+25%= No additional
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12
Q

Determining Max Lift (Pg. 405)

A

L=1.13xHg

properly operating appt. should have dependable lift of 14.7’

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13
Q

Pressure Correction Formula (pg407)

A

PC=Lift+intake hose friction loss

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14
Q

NPDP at Draft Formula (pg409)

A

NPDP(draft)=PDP+PC

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15
Q

Square or Rectangle Pool

A

C=7.5xLxWxD

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16
Q

Circle Pool

A

C=7.5x 3.14 x R² xD

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17
Q

Relay Distance Formula (total # of Pumpers) (pg430)

A

P=R÷D+1

18
Q

Water Shuttle Flow Rate (pg455) (ACTUAL FEILD TEST UNDER REALISTIC CONDITIONS)

A

Flow=0.9 x TS ÷ trip time

19
Q

ISO water shuttle testing (pg466-467)
Travel Time=
Handling Time=
Flow=

A

Travel Time=.65 + (1.7)(distance) (Distance is only one way??)
Handling Time= Fill+Dump site
Flow= 0.9 x TS ÷ TT+HT (

20
Q

Required Fire Flow Formula (pg100)

A

(L x W) ÷ 3 x % of involvement

21
Q

Calculating Thermal Radiation Intensity

Fahrenheit can be converted to Ranke (pg31)

A

R=(oF - 32) + 491.67

(Fire temp in R)⁴ ÷ (Ambient temp in R)⁴

22
Q

Fire Endurance of Steal Beams and Columns with light insulation

A

R= {(C1 x M) + C2) x 1} ÷ D

R= fire endurance in min
M= Mass of member in IB/Ft
D=Head Perimeter in inches
I= Thickness of protection in inches

23
Q

Kinetic Energy of Wind

A

E = 1/2MV²

24
Q

Kinetic Energy of a falling object

A

E = 1/2MV²

25
Q

Simple Soil Pressure Formula

A

P=CWH

26
Q

Pressure Drop Quadrupled

A

PD=(Number of Lines)²(8)

27
Q

NPDP draft PC=

A

PC=lift + Total intake hose FL ÷ 2.3

28
Q

Calculate Application Rate Foam Spec. Nozzle

A

Flow Rate ÷ Area of Fire

29
Q

% of Concentration in Solution =

A

Conductivity of solution - Conductivity of water

30
Q

Conversion of temp oF oC

A

oF=(oCx1.8)+32 ~/~ oC= (oF-32) ÷ 1.8

31
Q

Wyed Hoselines

A

Q= Flow Rate (GPM or L ÷ Min.) ÷ 100

32
Q

F.L. Coefficient - Siamese Lines of Equal Length

  1. ) two 2.5=
  2. ) Three 2.5=
  3. ) two 3” with 2.5coup. =
  4. ) one 3” with 3”coup, one 2.5”=
  5. )one 3” with 2.5coup. one 2.5”=
  6. )two 2.5”, one 3” with 2.5coup=
  7. )two 3”with 2.5coup, one 2.5”=
A

1.) 0.5
2.) .22
3.) 0.2
4.) 0.27
5.) 0.3
6.) 0.16
7.) 0.12
GPM=29.7 X D² X √NP
FL=CQ²L

33
Q

Assume Flow Rates For Sq. the Line Method (pg351)
Hose Size
1.5”

A

125

34
Q

Assume Flow Rates For Sq. the Line Method (pg351)
Hose Size
1 3/4”

A

175

35
Q

Assume Flow Rates For Sq. the Line Method (pg351)
Hose Size
2”

A

200

36
Q

Assume Flow Rates For Sq. the Line Method (pg351)
Hose Size
2.5”

A

250

37
Q 
Nozzle Diameters
5/8
7/8
1 1/8
1 3/8
A

.625
.80
1.125
1.375

38
Q

Piercing Nozzle

A

125gpm @ 100psi

3’-6’, 1.5 thick

39
Q

Chimney Nozzle

A

1.5 to 3gpm @ 100psi

40
Q

Low Pressure Fog Nozzle

A

50 or 75psi

41
Q

Standpipe
4”
5”
6”

A

.374

.126

.052

1. Charts In Book (3 decks)

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