Which of the following is a limitation of GPR?
A. Cannot detect metals
B. Ineffective in clay-rich soils
C. Requires explosives
D. Can only be used offshore
Answer: Option B
Solution (By Examveda Team)
GPR is less effective in clayey soils because clay absorbs and scatters radar signals due to its high conductivity.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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