Electrical Engineering XYZ MCQs
Which of following power plants is free from environmental problem:
- Nuclear
- Diesel engine
- Steam
- Hydroelectric
Correct answer: 4. Hydroelectric
Explanation: Hydroelectric power plants generate electricity by harnessing the energy of flowing water, usually from rivers or dams. Unlike the other options, hydroelectric power generation does not involve combustion, so it does not produce air pollutants or greenhouse gas emissions during operation. Additionally, hydroelectric power plants have minimal environmental impact compared to other forms of power generation, as they do not consume fuel or produce waste during electricity generation. However, the construction of dams and reservoirs for hydroelectric projects can have environmental consequences, including habitat disruption, alteration of river ecosystems, and displacement of communities. Despite these drawbacks, hydroelectric power remains one of the cleanest and most sustainable forms of electricity generation available today.