The time of concentration of a drainage basin is the
a. longest time required for water to flow to the basin outlet
b. time during which the storm intensity will not be exceeded
c. duration of a precipitation event in the drainage basin
d. service life of the drainage basin drainage infrastructure
e. none of the above
Question 2
The Manning's roughness coefficient for a smooth pipe is higher than the coefficient for a rough pipe.
Indicate whether the statement is true or false
