Equations Flashcards
1
Q
Multiplier for 1”
A
x150
2
Q
Multiplier for 1 3/4”
A
x10
3
Q
Multiplier for 2 1/2”
A
x2
4
Q
Multiplier for 3”
A
x1
5
Q
Multiplier for 4”
A
/5
6
Q
Multiplier for 5”
A
/20
7
Q
Pump Discharge Pressure (PDP) equation
A
PDP=FL+NP+/-EP+AFL
8
Q
equation to find FL
A
FL=Q^2xMxL
9
Q
GPM equation for sprinkler heads
A
GPM=0.5xP+15
- P=sprinkler head pressure (typically 7-10 psi)
- General rule: Each head requires 20 GPM
10
Q
Volume of a rectangular container
A
V (cubic feet)=LxWxH - Multiply this answer by 62.4 to find weight of container in pounds
Gallon capacity=7.48xV
11
Q
Volume of a cylindrical container
A
V (cubic feet)=0.7854xD^2xH - Multiply this answer by 62.4 to find weight of container in pounds
Gallon capacity=7.48xV
12
Q
A
