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GATE Exam Questions - Engineering

Q1:

An isochrone is a line on the basin map

A Joining raingauge stations having equal rainfall-duration

B Joining points having equal rainfall depth in a given time interval

C Joining points having equal time of travel of surface runoff to the catchment outlet

D Joining points which are at equal distance from the catchment outlet

ANS:C - Joining points having equal time of travel of surface runoff to the catchment outlet

C is the correct answer.

Isochrone is the line on the catchment map joining points having equal time of travel of surface run off.