Math Formulas Flashcards
0
Q
Volume of a cylinder =
A
.785 x D2 x H
1
Q
Volume =
A
L x W x H x 7.48 gal/cu ft
2
Q
Pounds of CI2 to add to water =
A
Flow MGD x 8.34 x mg/l
3
Q
Quantity =
A
V x A
4
Q
Velocity =
A
Q/A
5
Q
Demand + Residual =
A
CI2 dose
6
Q
Area of a circle (pipes, manholes, clarfiers)
A
(.785)(D2)
7
Q
Area of a rectangle
A
L x W
8
Q
Area of a pond
A
(43,560)(number of acres)
9
Q
Volume of a circle (in cubic feet)
A
(.785)(D2)(h)
10
Q
Volume of a rectangle (in cubic feet)
A
L x W x H
11
Q
Volume of a pond (in cubic feet)
A
(43,560)(acres)(depth)
12
Q
Volume in gallons
A
(FT3)(7.48)
13
Q
Pressure (PSI)=
A
Pressure head, ft x .433 psi
14
Q
Pressure head ft =
A
(Psi)(2.31 ft/psi)
