Hydrology

The smallest division on the graduated jar of the Symon's rain gauge is

• 0.1 mm
• 0.2 mm
• 0.8 mm
• 0.5 mm

When does hydrograph called as unit hydrograph?

• 1 cm of runoff from rainfall
• 3 cm of runoff from rainfall
• 1 mm of runoff from rainfall
• 3 mm of runoff from rainfall

Rainfall cycle period in India is taken as :

• 35 years
• 20 years
• 15 years
• 25 years

The rainfall at any place is described by

• Its intensity
• Its duration
• Its frequency
• All of these

In nature water may occur as

• Liquid
• Solid
• Vapours
• All of these

The area from which rainfall flown into a drainage line, out fall or reservoir etc :

• Rainfall
• Runoff
• Catchment area
• Drains

Expand "ERH" -

• Effective run of hyetograph
• Effective rainfall hyetograph
• Effective region hyetograph
• Effective reservoir hyetograph

The evaporation from plants and surrounding soil together is called :

• vaporisation
• Hydration
• Evapotranspiration
• Transpiration

For tributaries of same size greater runoff occurs on

• Fan shape
• Fern shape
• Circular shape
• Radian shape

Which catchment area run off will be more?

• Fan shaped
• Tree shaped
• Fern shaped
• Circular