grades Flashcards
1
Q
2%
A
1 PSI per 100ft
2
Q
5%
A
2 PSI
3
Q
10%
A
4 PSI
4
Q
12.5%
A
5 PSI
5
Q
15%
A
6 PSI
6
Q
20%
A
9 PSI
7
Q
25%
A
11 PSI
8
Q
35%
A
15 PSI
9
Q
40%
A
17 PSI
10
Q
45%
A
19 PSI
