STEP 11. Obtain the 2-year, 1-hour rainfall intensity. "I" value. 1.0 in/hr
Figure 1-4 (page 1-7)
STEP 12. Adjust "I" using the Standard Intensity Curves graph on figure 1-5 on page 1-9.
Figure 1-5 (page 1-9)
STEP 13. Calculate Q: Q = 0.35 x 1.7 x 40.6 = 24.1 cfs
STEP 13. Calculate the runoff... (page 2-18)
NOTE: Times listed are for the example problem.
Item
Correct Answer and Feedback
1.
D
Classify the basin as simple or complex.
STEP 4. Classify the basin... (page 2-5)
2.
B
28.8 minutes
Figure 2-2 (page 2-7)
3.
A
31.3 minutes
STEP 5a. Representative flow paths... (page 2-5)
4.
D
35
Table 2-1. C-values (page 2-6)
5.
A
2.9 percent
STEP 8. Determine the average ... (page 2-12)
6.
B
The tenth worst storm.
Therefore, m =... (page 2-20)
7.
C
Total precipitation less the natural losses.
Runoff is the... (page 2-2)
8.
A
An idealized storm.
For simplicity the Rational Method... (page 2-3)
9.
A
Longest flow time in a path for a given watershed.
Consequently, to get... (page 2-4)
2-27
EN5465
Previous Page
