Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Difference between proposed and existing contours?
|
Existing are thin and dashed, proposed are thicker and solid.
|
|
|
How is the flow line at the bottom of a pipe indicated?
|
By a spot elevation
|
|
|
Which direction do swale and drainage ditch contours point?
|
Uphill
|
|
|
Which direction do coutour lines point along a ridge or crown of a road?
|
Downhill
|
|
|
At which end of a drainage pipe should you indicate an invert elevation?
|
Both
|
|
|
The HPS must be how much lower than the elevation of the object for which the swale is intended?
|
6"
|
|
|
What side are contour lines labeled on?
|
High side/ Uphill
|
|
|
1 acre = how many SF?
|
43,560 SF
|
|
|
1 SY = ? SF
27 CF = ? CY 1 Mile = Ft |
9 SF
1 CF 5,280 LF |
|
|
What is the rational formula for calculating stormwater runoff?
|
Q=CIA
Q=quantity of water in units of cfs (cu. ft. per second) C=Cover factor for the soil and vegetation, decimal with no units (% or rainfall that runs off without infiltrating) I=rainfall intensity (in/hr) A=Area of watershed (acres) |
