What is the main use of cross-hole seismic testing?
A. Earthquake prediction
B. Pavement design
C. Determining in-situ seismic velocity
D. Detecting magnetic anomalies
Answer: Option C
Solution (By Examveda Team)
Cross-hole seismic testing involves generating waves in one borehole and recording in another to accurately determine in-situ wave velocities.This Question Belongs to Geological Engineering >> Geophysical Methods In Engineering
Which geophysical method uses electrical resistivity to study subsurface layers?
A. Seismic reflection
B. Electrical resistivity method
C. Gravity method
D. Magnetic method
What is the primary physical property measured in the seismic refraction method?
A. Electrical resistivity
B. Density
C. Seismic wave velocity
D. Magnetic susceptibility
The magnetic method in geophysics is used to detect:
A. Density contrasts
B. Magnetic anomalies
C. Water table depth
D. Pore pressure
Ground Penetrating Radar (GPR) is most effective in detecting:
A. Subsurface water
B. Magnetic minerals
C. Airborne pollutants
D. Earthquakes
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