Question

An open well is called shallow well when ____________

(a) the depth of well is small

(b) the water table is high

(c) it does not encounter mota formation

(d) it finds the foundation in the mota formation

I got this question during an interview for a job.

This intriguing question originated from Open Well and Dug Well topic in division Ground Water for Irrigation through Wells and Tubewells of Irrigation Engineering

Answer 1

Right answer is (c) it does not encounter mota formation

To elaborate: A shallow well is that well which does not encounter mota formation. A deep well is that well which goes below the water table and finally finds its foundation in the mota formation.