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