What is the primary reason for conducting a geophysical survey before drilling?
A. Reduce number of boreholes
B. Avoid groundwater contamination
C. Check weather conditions
D. To install reinforcements
Answer: Option A
Solution (By Examveda Team)
Geophysical surveys provide a preliminary understanding of subsurface variability, helping to strategically optimize borehole locations and reduce unnecessary drilling.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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