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Chapter:

Landslides Solved MCQs

in Disaster Management

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Business Administration (BBA) .

Chapters

Chapter: Landslides
1.

What is the definition of a landslide?

A. Only the rapid downward movement of rocks.
B. Exclusively the slow flow of soil.
C. The movement of artificial fills only.
D. The downward and outward movement of slope materials like rocks, soil, or fills.
Answer» D. The downward and outward movement of slope materials like rocks, soil, or fills.
Explanation: The definition of a landslide encompasses various types of mass movements on slopes.
2.

Which of the following is NOT a major cause of landslides?

A. Erosion of slope toe
B. Intense rainfall
C. Geological weak material
D. Volcanic eruption
Answer» D. Volcanic eruption
Explanation: While volcanic eruptions can indirectly contribute to landslides through ash deposition, they are not a direct cause like the other options.
3.

How does intense rainfall contribute to landslides?

A. It saturates the soil, increasing its weight and reducing its strength.
B. It causes rapid evaporation, making the soil dry and loose.
C. It increases the temperature of the soil, leading to expansion and cracking.
D. It reduces the friction between soil particles, making them more likely to slide.
Answer» A. It saturates the soil, increasing its weight and reducing its strength.
Explanation: Heavy rainfall saturates the ground, reducing its stability and increasing the likelihood of landslides.
4.

Which human activity can increase the risk of landslides?

A. Planting trees on slopes
B. Building dams
C. Excavation of slope and its toe
D. Constructing terraces on slopes
Answer» C. Excavation of slope and its toe
Explanation: Excavation can weaken slopes and make them more susceptible to landslides.
5.

How do earthquakes trigger landslides?

A. By causing volcanic eruptions
B. By shaking the ground and destabilizing slopes
C. By increasing rainfall intensity
D. By causing rapid snowmelt
Answer» B. By shaking the ground and destabilizing slopes
Explanation: Earthquakes shake the ground, reducing the stability of slopes and potentially triggering landslides.
6.

Which region in India is worst affected by landslides?

A. Himalayas including North-eastern mountains ranges
B. Western Ghats
C. Vindhyas
D. Deccan Plateau
Answer» A. Himalayas including North-eastern mountains ranges
Explanation: The Himalayas are particularly prone to landslides due to their steep slopes, active geology, and monsoon rainfall.
7.

What is the main factor contributing to landslides in Peninsular India?

A. Earthquakes
B. Volcanic eruptions
C. Torrential rainfall on deforested slopes
D. Mining activities
Answer» C. Torrential rainfall on deforested slopes
Explanation: Torrential rainfall on deforested slopes is the primary driver of landslides in this region.
8.

Which of the following is a typical adverse effect of landslides?

A. Increased soil fertility
B. Damage to roads and communication lines
C. Improved air quality
D. Increased groundwater recharge
Answer» B. Damage to roads and communication lines
Explanation: Landslides can damage or destroy roads and communication lines, disrupting transportation and communication networks.
9.

What is hazard mapping used for in the context of landslides?

A. To identify areas prone to landslides and guide mitigation planning
B. To predict the exact time and location of landslides
C. To measure the economic impact of landslides
D. To study the chemical composition of landslide debris
Answer» A. To identify areas prone to landslides and guide mitigation planning
Explanation: Hazard mapping identifies areas prone to landslides, aiding in planning and mitigation efforts.
10.

How can afforestation help in reducing landslides?

A. By increasing surface runoff
B. By reducing soil erosion
C. By increasing water infiltration
D. By binding the soil with roots and reducing surface runoff
Answer» D. By binding the soil with roots and reducing surface runoff
Explanation: Trees help stabilize slopes by binding the soil with their roots and reducing surface runoff.
11.

Why is it important to avoid blocking natural drainage while constructing roads in hilly areas?

A. To prevent water accumulation and soil saturation
B. To improve road aesthetics
C. To reduce construction costs
D. To enhance biodiversity
Answer» A. To prevent water accumulation and soil saturation
Explanation: Blocking natural drainage can lead to water accumulation, saturating the soil and increasing landslide risk.
12.

What type of construction is recommended in areas prone to landslides?

A. Buildings with shallow foundations
B. Structures made of lightweight materials
C. Engineered structures with strong foundations
D. High-rise buildings
Answer» C. Engineered structures with strong foundations
Explanation: Engineered structures with strong foundations are better equipped to withstand the forces exerted by ground movement during a landslide.
13.

How do retaining walls help mitigate landslides?

A. By diverting water away from slopes
B. By providing support to slopes and preventing soil erosion
C. By absorbing seismic waves
D. By reducing rainfall intensity
Answer» B. By providing support to slopes and preventing soil erosion
Explanation: Retaining walls provide support to slopes, preventing smaller landslides and soil erosion.
14.

What is the purpose of surface drainage control works in landslide mitigation?

A. To strengthen the soil
B. To reduce earthquake impacts
C. To control the movement of water and prevent soil saturation
D. To promote vegetation growth
Answer» C. To control the movement of water and prevent soil saturation
Explanation: These works aim to manage water flow, preventing it from infiltrating and further destabilizing landslide-prone areas.
15.

Why is it important to make underground installations flexible in landslide-prone areas?

A. To withstand forces caused by ground movement
B. To prevent water infiltration
C. To reduce construction costs
D. To minimize visual impact
Answer» A. To withstand forces caused by ground movement
Explanation: Flexibility allows these installations to move with the ground during a landslide, minimizing damage.
16.

What is the cheapest and most effective way of arresting landslides?

A. Increasing vegetation cover
B. Constructing concrete retaining walls
C. Relocating settlements
D. Building drainage systems
Answer» A. Increasing vegetation cover
Explanation: Increasing vegetation cover is a cost-effective and environmentally friendly method to stabilize slopes and prevent landslides.
17.

How does insurance help in mitigating the risks associated with landslides?

A. It prevents landslides from occurring.
B. It reduces the frequency of landslides.
C. It predicts the occurrence of landslides.
D. It provides financial assistance to those affected by landslides.
Answer» D. It provides financial assistance to those affected by landslides.
Explanation: Insurance provides financial assistance to individuals who suffer losses due to landslides, aiding in recovery and rebuilding.
18.

Which of the following geological factors contributes to landslides?

A. Weakness in the composition and structure of rock or soil
B. Presence of dense vegetation
C. Flat topography
D. High groundwater table
Answer» A. Weakness in the composition and structure of rock or soil
Explanation: Weak geological formations, like those with unstable rock or soil compositions, can make areas more susceptible to landslides.
19.

What is the role of hazard mapping in mitigating landslide risks?

A. To predict the exact time of a landslide
B. To identify high-risk areas and guide development restrictions
C. To calculate the economic losses from a landslide
D. To study the impact of landslides on wildlife
Answer» B. To identify high-risk areas and guide development restrictions
Explanation: Hazard mapping helps identify high-risk areas, enabling authorities to restrict development and implement preventive measures in those zones.
20.

What should be done with settlements located in the direct path of potential landslides?

A. Strengthen the buildings
B. Construct drainage channels
C. Relocate the settlements
D. Build retaining walls
Answer» C. Relocate the settlements
Explanation: Relocating settlements from high-risk zones is crucial to prevent loss of life and property.

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