यदि F बाढ़ की आवृत्ति (flood frequency) है, तो पुनरावृत्ति अंतराल (recurrence interval) किसके द्वारा दिया जाता है?

The ratio of rainfall in a particular year to the Average Annual Rainfall (AAR) is defined as the:

A unit hydrograph represents a direct runoff hydrograph resulting from one unit depth of:

The peak of the outflow hydrograph will occur at the point of intersection of the inflow and outflow curves in which of the following cases?