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