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