Water Intake Structures MCQ with answer and solution

Concept

Water intake structures consisting of several infiltration wells connected by porous pipes to a central collection well (sump well) are known as radial collector wells or simply collectors.

Step-by-step solution

1. Understand the components of groundwater intake systems. 2. Infiltration wells are sunk along the banks of a river or in water-bearing strata to draw clear underground water. 3. When multiple such wells are connected by horizontal porous or perforated pipes to a central well called a sump well (or jack well), the entire system is known as a radial collector well or collector. Answer: (C) Collectors

Explanation

A radial collector well system uses multiple horizontal perforated pipes radiating from a central caisson or sump well to collect filtered groundwater from riverbeds or aquifers effectively.

Why the other options are wrong

A: Jack well is a single masonry or concrete well from which water is pumped. B: Spring is a natural emergence of groundwater. D: Dug well is a shallow open well manually excavated.

Shortcut

Remember: Porous pipes connected to a sump well = Radial collector system (Collectors).

Common mistake

Confusing a collector well system with a single jack well or dug well.