Building Dams
  • 1. Building dams is a crucial engineering feat that involves constructing barriers across rivers or streams to control and manage water flow. Dams serve multiple purposes, including providing hydroelectric power, regulating water supply for irrigation and drinking water, preventing floods, and supporting navigation. The process of building a dam requires careful planning, design, and construction to ensure its stability and effectiveness. Environmental impact assessments must also be conducted to evaluate and mitigate any potential negative effects on the surrounding ecosystem and wildlife. Overall, building dams requires a combination of engineering expertise, environmental considerations, and effective management to successfully meet the water-related needs of a region.

    Which type of dam relies on the force of gravity to hold back water?
A) Barrage dam.
B) Gravity dam.
C) Embankment dam.
D) Arch dam.
  • 2. Which material is commonly used to construct dams due to its strength and durability?
A) Bamboo.
B) Wood.
C) Concrete.
D) Plastic.
  • 3. What is the process of water passing over or through a dam called?
A) Spillway.
B) Siphoning.
C) Inundation.
D) Leakage.
  • 4. What environmental impact can dams have on rivers?
A) Enhancing natural habitats.
B) Boosting local biodiversity.
C) Disrupting fish migration.
D) Reducing water pollution.
  • 5. Which type of dam is typically built in a narrow canyon or valley?
A) Arch dam.
B) Buttress dam.
C) Gravity dam.
D) Embankment dam.
  • 6. What can a dam failure lead to?
A) Flooding downstream.
B) Enhanced water quality.
C) Increased wildlife population.
D) Improved soil fertility.
  • 7. Which country is home to the famous Hoover Dam?
A) China.
B) United States.
C) Russia.
D) Brazil.
  • 8. What is the purpose of a spillway on a dam?
A) To release excess water safely.
B) To generate additional power.
C) To filter out debris.
D) To store emergency supplies.
  • 9. Which type of dam is constructed using earth or rock fill?
A) Arch dam.
B) Embankment dam.
C) Gravity dam.
D) Buttress dam.
  • 10. What is the practice of removing a dam to restore a river's natural flow called?
A) Dam reinforcement.
B) Dam removal.
C) Dam expansion.
D) Dam retrofitting.
  • 11. Which dam attribute affects the amount of energy that can be generated?
A) Dam color.
B) Location of the dam.
C) Height of the dam.
D) Age of the dam.
  • 12. What is the primary advantage of hydroelectric power generated by dams?
A) Polluting energy.
B) Expensive energy.
C) Non-renewable energy.
D) Renewable energy.
  • 13. What can be a consequence of damming a river?
A) Inducing droughts.
B) Creating wetlands.
C) Increasing erosion.
D) Altering sediment transport.
  • 14. Which engineering discipline is involved in designing dams?
A) Civil engineering.
B) Biomedical engineering.
C) Aerospace engineering.
D) Mechanical engineering.
  • 15. Which type of dam uses a series of supports on the downstream side?
A) Buttress dam.
B) Gravity dam.
C) Arch dam.
D) Embankment dam.
  • 16. What safety measures are put in place to detect dam deformation?
A) Water purifiers.
B) Monitoring instruments.
C) Weather vanes.
D) Decorative lights.
  • 17. What is the term for the process of filling a reservoir behind a dam?
A) Evaporation.
B) Impoundment.
C) Erosion.
D) Condensation.
  • 18. Which country has the largest dam based on power generation capacity?
A) India
B) China
C) Brazil
  • 19. Which term refers to the walls that confine the sides of a dam?
A) Piers
B) Buttresses
C) Abutments
D) Spillways
  • 20. Which organization provides guidelines for safe dam construction practices?
A) International Commission on Large Dams (ICOLD)
B) World Health Organization (WHO)
C) Greenpeace
D) United Nations Educational, Scientific and Cultural Organization (UNESCO)
  • 21. What is an essential consideration in dam safety management?
A) Ignoring warning signs
B) Building taller dams
C) Regular maintenance and inspections
D) Fast-tracking construction
  • 22. What is the term for the process of collecting sediment in a reservoir behind a dam?
A) Siltation
B) Erosion
C) Condensation
D) Desalination
  • 23. What is a common method of stabilizing a dam against potential failure due to seepage?
A) Removing the dam
B) Grouting
C) Ignoring the issue
D) Covering with plants
  • 24. Which important factor must be considered before constructing a dam in a specific location?
A) Geological feasibility
B) Historical significance
C) Aesthetic appeal
D) Proximity to urban areas
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