Question:
A unit hydrograph is defined as the direct runoff hydrograph produced by
A unit hydrograph is defined as the direct runoff hydrograph produced by
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A Unit Hydrograph represents
\[
\boxed{
\text{1 cm effective rainfall}
\rightarrow
\text{Direct runoff hydrograph}
}
\]
Updated On: Jul 23, 2026
- 1 mm total rainfall
- 1 cm effective rainfall
- 10 mm annual rainfall
- Maximum storm rainfall
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The Correct Option is B
Solution and Explanation
A unit hydrograph is the direct runoff hydrograph resulting from 1 cm of effective rainfall (or rainfall excess) occurring uniformly over the catchment during a specified duration.
Hence,
\[
\boxed{\text{1 cm effective rainfall}}
\]
is the correct answer.
Therefore,
\[
\boxed{(B)}
\]
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