Q2
Which of the following is a non-invasive geophysical method?
A.
Cone penetration test
B.
Standard penetration test
C.
Electrical resistivity method
AnswerD.
Test pit excavation
Answer: Option C
Solution
Answer: Option C
Solution:
Electrical resistivity method is a geophysical technique to estimate subsurface profiles without excavation.It is widely used to detect groundwater, voids, and different strata.