The mostly used tube well in India:
AStrainer well
BCavity well
CSlotted well
DPerforated well
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Related Questions:
Nahni trap is popularly known as:
Which valve has two inlet / one outlet in hydraulic / pneumatic system?
Average duration of a particle of water to pass through a phase of the hydrologic cycle is known as the ..........................
'Air binding' may occur in...........................
The Instrument used for fixing the pipe in position for cutting and threading operation: