Which method is used to obtain high-quality rock core samples?
A. Standard penetration test
B. Vane shear test
C. Rotary core drilling
D. Plate load test
Answer: Option C
Solution (By Examveda Team)
Rotary core drilling involves rotating a hollow drill bit to cut and retrieve continuous cylindrical rock samples called cores.This Question Belongs to Geological Engineering >> Site Investigation And Geotechnical Exploration
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