1.

The line which separates the catchment basin from the rest of the area is:(a) Ridge line(b) Dam line(c) Catchment line(d) Watershed lineI had been asked this question in an interview for internship.I'm obligated to ask this question of Contouring in division Basic Surveying of Basic Civil Engineering

Answer»

Correct choice is (d) Watershed LINE

The BEST EXPLANATION: The area where RAIN water DRAINS into the river is the catchment area of the river. The watershed line is then marked. The area inside this line is measured in order to study flood levels.



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