Geophysical Methods in Engineering MCQs Questions & Answers

1.
Which geophysical method uses electrical resistivity to study subsurface layers?

A. Seismic reflection

B. Electrical resistivity method

C. Gravity method

D. Magnetic method

Answer & Solution Discuss in Board Save for Later

2.
What is the primary physical property measured in the seismic refraction method?

A. Electrical resistivity

B. Density

C. Seismic wave velocity

D. Magnetic susceptibility

Answer & Solution Discuss in Board Save for Later

3.
The magnetic method in geophysics is used to detect:

A. Density contrasts

B. Magnetic anomalies

C. Water table depth

D. Pore pressure

Answer & Solution Discuss in Board Save for Later

4.
Ground Penetrating Radar (GPR) is most effective in detecting:

A. Subsurface water

B. Magnetic minerals

C. Airborne pollutants

D. Earthquakes

Answer & Solution Discuss in Board Save for Later

5.
Which of the following is a passive geophysical method?

A. Electrical resistivity survey

B. Magnetic survey

C. Induced polarization

D. Seismic refraction

Answer & Solution Discuss in Board Save for Later

6.
Which geophysical method is best for determining the depth to bedrock?

A. Gravity method

B. Seismic refraction

C. Magnetic method

D. Electrical self-potential

Answer & Solution Discuss in Board Save for Later

7.
The gravity method is based on the measurement of:

A. Wave amplitude

B. Electrical potential

C. Gravitational acceleration variations

D. Magnetic field strength

Answer & Solution Discuss in Board Save for Later

8.
Which geophysical technique is commonly used in groundwater exploration?

A. Magnetic method

B. Self-potential method

C. Gravity survey

D. Resistivity method

Answer & Solution Discuss in Board Save for Later

9.
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 & Solution Discuss in Board Save for Later

10.
What does a low resistivity reading usually indicate in a resistivity survey?

A. Dense rock

B. Dry sand

C. Moist clay or water-saturated soil

D. Air-filled cavity

Answer & Solution Discuss in Board Save for Later

Geophysical Methods in Engineering MCQs Questions & Answers | Geological Engineering

1. Which geophysical method uses electrical resistivity to study subsurface layers?

Answer & Solution

2. What is the primary physical property measured in the seismic refraction method?

Answer & Solution

3. The magnetic method in geophysics is used to detect:

Answer & Solution

4. Ground Penetrating Radar (GPR) is most effective in detecting:

Answer & Solution

5. Which of the following is a passive geophysical method?

Answer & Solution

6. Which geophysical method is best for determining the depth to bedrock?

Answer & Solution

7. The gravity method is based on the measurement of:

Answer & Solution

8. Which geophysical technique is commonly used in groundwater exploration?

Answer & Solution

9. Which of the following is a limitation of GPR?

Answer & Solution

10. What does a low resistivity reading usually indicate in a resistivity survey?

Answer & Solution

1.
Which geophysical method uses electrical resistivity to study subsurface layers?

2.
What is the primary physical property measured in the seismic refraction method?

3.
The magnetic method in geophysics is used to detect:

4.
Ground Penetrating Radar (GPR) is most effective in detecting:

5.
Which of the following is a passive geophysical method?

6.
Which geophysical method is best for determining the depth to bedrock?

7.
The gravity method is based on the measurement of:

8.
Which geophysical technique is commonly used in groundwater exploration?

9.
Which of the following is a limitation of GPR?

10.
What does a low resistivity reading usually indicate in a resistivity survey?