What does the Rock Quality Designation (RQD) indicate?
A. Degree of rock weathering
B. Percentage of intact core pieces longer than 10 cm
C. Porosity of rock mass
D. Rock color variation
Answer: Option B
Solution (By Examveda Team)
RQD is a measure of rock mass quality, based on percentage of solid core pieces longer than 10 cm from a drill core.This Question Belongs to Geological Engineering >> Rock Mechanics And Rock Engineering
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