Question

Given below are two statements regarding curve number method of runoff estimation
Statement I: Curve number method is also known as the Hydrologic Soil Cover Complex Method
Statement II: Curve number method is based on the recharge capacity of the watershed
In light of the above statements, choose the correct answer from the options given below

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Hint:

The Curve Number (CN) ranges from 0 to 100:
- CN = 100: Completely impermeable surface (all rainfall becomes runoff).
- CN \(\rightarrow\) 0: Highly permeable, vegetated soil (nearly all water infiltrates).

Answer 1

The Correct Option is C