What is the main advantage of rotary drilling over auger boring?
A. It is faster
B. It produces disturbed samples
C. It can penetrate hard rock
D. It requires less water
Answer: Option C
Solution (By Examveda Team)
Rotary drilling is suitable for hard strata and deep formations, which auger boring cannot efficiently penetrate.It uses a rotating drill bit with circulating fluid to cut through rock.This Question Belongs to Geological Engineering >> Site Investigation And Geotechnical Exploration
What is the primary objective of site investigation in geotechnical engineering?
A. Cost estimation
B. Material procurement
C. Determination of soil and rock properties
D. Project scheduling
Which of the following is a non-invasive geophysical method?
A. Cone penetration test
B. Standard penetration test
C. Electrical resistivity method
D. Test pit excavation
The standard penetration test (SPT) measures:
A. Soil shear strength
B. Soil permeability
C. Soil density
D. Soil resistance to penetration
What does a borehole log provide?
A. List of equipment used
B. Weather data
C. Subsurface profile and material description
D. Project cost
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