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Geological Hazards MCQs Questions & Answers | Geological Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Geological Hazards. These resources are available for Geological engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Geological Hazards chapter is particularly important for students studying Geological engineering. Page-2 section-1

11
The term "subsidence" in geological hazards refers to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Subsidence is the gradual or sudden sinking of the Earth's surface due to natural or man-made causes, such as mining or groundwater extraction.
12
What kind of hazard is a sinkhole?
Discuss
Answer & Solution
Answer: Option C
Solution:
A sinkhole is a geological hazard resulting from the collapse of the ground surface into voids in limestone or soluble rock beneath.
13
Seismic waves that cause the most damage during earthquakes are:
Discuss
Answer & Solution
Answer: Option C
Solution:
Rayleigh waves are surface waves that move in a rolling motion and cause significant damage to structures.They travel slower but have larger amplitude.
14
Which of the following is a method to reduce landslide risk?
Discuss
Answer & Solution
Answer: Option C
Solution:
Retaining walls provide physical support to slopes, helping prevent failure.They are widely used in landslide-prone areas.
15
Which instrument is used to measure ground movement during an earthquake?
Discuss
Answer & Solution
Answer: Option C
Solution:
A seismometer records seismic waves and ground movements during an earthquake, helping assess magnitude and intensity.
16
What causes ground shaking during an earthquake?
Discuss
Answer & Solution
Answer: Option C
Solution:
Seismic wave propagation through Earth's crust causes ground shaking during an earthquake.These waves are generated by sudden energy release at faults.
17
Which hazard is most commonly associated with volcanic eruptions?
Discuss
Answer & Solution
Answer: Option C
Solution:
Lava flows are a direct consequence of volcanic eruptions.They can destroy infrastructure and alter landscapes.
18
The hazard map of an area is used to:
Discuss
Answer & Solution
Answer: Option C
Solution:
A hazard map illustrates zones with high risk for specific natural hazards (e.g., earthquakes, floods, landslides) to aid planning and mitigation.
19
Earthquake-resistant buildings are designed primarily to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Earthquake-resistant design focuses on reducing structural failure by absorbing seismic energy and allowing controlled deformation.
20
What is the term for a large mass of snow, ice, and rocks falling rapidly down a mountainside?
Discuss
Answer & Solution
Answer: Option B
Solution:
An avalanche is a sudden downhill flow of snow and debris, common in mountainous regions with unstable snowpacks.