RQD (Rock Quality Designation) is a measure of:
A. Permeability of soil
B. Strength of concrete
C. Quality of rock core samples
D. Color of minerals
Answer: Option C
Solution (By Examveda Team)
RQD assesses rock mass quality based on percentage of sound rock pieces longer than 10 cm recovered during drilling.Related Questions on Engineering Geology for Construction
What is the most important geological consideration before constructing a dam?
A. Soil fertility
B. Rock type and structure
C. Surface vegetation
D. Proximity to roads
Which test is commonly used to determine rock strength for construction suitability?
A. Permeability test
B. Schmidt hammer test
C. Sieve analysis
D. Vane shear test
What geological structure is most hazardous for tunnel construction?
A. Horizontal bedding
B. Fault zone
C. Anticline fold
D. Massive granite
The unconfined compressive strength of a rock is a measure of its:
A. Tensile strength
B. Load-bearing capacity without lateral support
C. Weathering rate
D. Porosity

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