Electrical Engineering XYZ MCQs
The major portion of electrical power is generated from:
- Coal
- Nuclear
- Hydroelectric
- Solar
Correct answer: 1. Coal
Explanation: The primary source of electricity generation globally is coal, due to its availability and cost-effectiveness. Coal-fired plants convert heat from burning coal into electrical energy, but they also produce significant environmental pollutants, including high levels of carbon dioxide. Although the use of coal has environmental drawbacks, many countries with substantial coal reserves continue to depend heavily on it for power generation. Other electricity sources like nuclear, hydroelectric, and solar are also important, with each having distinct benefits and challenges. However, trends indicate a growing shift towards renewable energies, particularly solar and wind, to mitigate the environmental impact of traditional energy sources like coal.