Question

The upper limit of run off coefficient is:

• A. \(1\)
• B. \(10\)
• C. \(1.5\)
• D. \(15\)

Hint:

Runoff coefficient generally ranges from \(0\) to \(1\).

Answer 1

The Correct Option is A

Concept:
Runoff coefficient is the ratio of runoff to rainfall. \[ C=\frac{\text{Runoff}}{\text{Rainfall}} \]

Step 1: Understand the minimum and maximum value.
If no rainfall becomes runoff, then: \[ C=0 \] If all rainfall becomes runoff, then: \[ C=1 \]

Step 2: Determine the upper limit.
Since runoff cannot be greater than total rainfall in the simple runoff coefficient concept, the maximum value is: \[ 1 \] \[ \therefore \text{Correct Answer is (A)} \]