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Geological Engineering · Q25

Groundwater and Hydrogeology

Engineering and GATE · Geological Engineering · question 25

Q25

Which factor decreases the permeability of an aquifer?

A.
Increased porosity
B.
Cementation
Answer
C.
Well grading
D.
Sorting of grains

Answer: Option B

Solution

Answer: Option B
Solution:
Cementation reduces permeability by filling pore spaces with precipitated minerals, thus reducing the interconnected voids needed for fluid flow.