Which of the following is a non-invasive geophysical method?
A. Cone penetration test
B. Standard penetration test
C. Electrical resistivity method
D. Test pit excavation
Answer: Option C
Solution (By Examveda Team)
Electrical resistivity method is a geophysical technique to estimate subsurface profiles without excavation.It is widely used to detect groundwater, voids, and different strata.This Question Belongs to Geological Engineering >> Site Investigation And Geotechnical Exploration
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