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Drilled wells can be excavated by simple hand drilling methods.

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Drilled wells can be excavated by simple hand drilling methods.

(a) True

(b) False

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The doubt is from Wells in portion Irrigation Works, Culverts, Bridges and Wells of Civil Engineering Drawing

1 Answer

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Best answer
Correct option is (a) True

Best explanation: (augering, sludging, jetting, driving, hand percussion) or machine drilling (rotary, percussion, down the hole hammer). Deeprock rotary drilling method is most common. Rotary can be used in 90% of formation types.

Drilled wells can get water from a much deeper level than dug wells can—often down to several hundred metres.

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