Q63
Which technique is best for mapping shallow subsurface features like sinkholes?
A.
Gravity survey
B.
Electrical resistivity survey
AnswerC.
Plate load test
D.
Core drilling
Answer: Option B
Solution
Answer: Option B
Solution:
Electrical resistivity can detect anomalies such as voids, fractures, and sinkholes by measuring how current flows through the subsurface.