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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-3 section-1

21
Which of the following processes can cause a tsunami besides earthquakes?
Discuss
Answer & Solution
Answer: Option B
Solution:
Undersea volcanic eruptions can displace water columns and generate tsunamis similar to undersea earthquakes.
22
Which statement is true about aftershocks?
Discuss
Answer & Solution
Answer: Option C
Solution:
Aftershocks are smaller tremors following the main earthquake, but can still cause significant damage, especially to weakened structures.
23
The term "fault" in geology refers to:
Discuss
Answer & Solution
Answer: Option C
Solution:
A fault is a fracture along which movement has occurred in Earth's crust, often responsible for earthquakes.
24
The process of slope failure in permafrost regions due to thawing is called:
Discuss
Answer & Solution
Answer: Option A
Solution:
Gelifluction involves the slow downslope flow of water-saturated soil over permafrost, triggered by seasonal thawing.
25
Which of the following is NOT considered a geological hazard?
Discuss
Answer & Solution
Answer: Option D
Solution:
Tornadoes are atmospheric hazards, not geological.Volcanoes, earthquakes, and landslides are geological.
26
Which instrument records ground displacement caused by earthquakes?
Discuss
Answer & Solution
Answer: Option B
Solution:
A seismograph records the motion of the ground due to seismic waves.It is essential in earthquake monitoring and analysis.
27
Which hazard often accompanies a major earthquake in coastal regions?
Discuss
Answer & Solution
Answer: Option C
Solution:
Coastal earthquakes can cause sudden seafloor displacement, leading to tsunamis which impact coastal communities.
28
The buildup of stress along a fault line eventually leads to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Stress buildup at fault lines is relieved suddenly as an earthquake when the rock breaks and slips.
29
Debris flows are more dangerous than regular landslides because they:
Discuss
Answer & Solution
Answer: Option A
Solution:
Debris flows are high-density mixtures of water, soil, and rock that flow rapidly, often down channels.They are fast and destructive.
30
The process by which groundwater dissolves limestone leading to underground voids is:
Discuss
Answer & Solution
Answer: Option C
Solution:
Karstification is the chemical weathering process in which acidic water dissolves soluble rocks like limestone, forming caves and sinkholes.