To Determine the Discharge at a Section in a Stream

Multiple Choice

To determine the discharge at a section in a stream from its rating curve, the required data are
i. slope of water surface at the section
ii. stage at the section
iii. current meter readings at the section
The correct answer is

A) (i) and (ii)
B) (ii) and (iii)
C) only (ii)
D) only (iii)