A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is

Engineering hydrology is the science of water resource engineering which deals with the study of occurrence, distribution, movement and the properties of water on the earth or beneath the earth surface or in the atmosphere.

Water resources engineers develop and execute plans for developing water systems that provide clean, safe water in an efficient way that is also good for the planet. They play a central role in civil and commercial construction projects that involve water distribution.