Section 4: Soil and Water Conservation Engineering
Hydrology
Subtopic: Hydrological cycle and measurement of its components
Question Statement:
Which method is used for the geophysical exploration of groundwater?
Options:
(A) Electric Resistivity method
(B) Test Boring method
(C) Tracer method
(D) Remediation method
Official Answer Key:
A
Step-by-Step Solution & Explanation
Electrical resistivity surveying is a standard indirect geophysical method for locating aquifers/water tables based on subsurface resistivity contrasts. Test boring is a direct (non-geophysical) exploration method; tracer methods are used to study groundwater movement/velocity, not exploration; remediation is a treatment method, not exploration.
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