For underground metro construction in urban areas, why is geotechnical borehole logging essential?
A. To locate electrical lines
B. To test air quality
C. To understand subsoil layers and groundwater
D. To evaluate traffic impact
Answer: Option C
Solution (By Examveda Team)
Borehole logging reveals soil profile, water table, and rock properties critical for tunnel design, safety, and dewatering strategy.This Question Belongs to Geological Engineering >> 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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