Electrical Engineering XYZ MCQs
In a thermal power plant, which of its following components needs maximum maintenance attention:
- Super heater
- Steam turbine
- Condenser
- Boiler
Correct answer: 4. Boiler
Explanation:
In a thermal power plant, the boiler is the component that requires maximum maintenance attention for several reasons:
- High Temperature and Pressure Environment: The boiler operates under high temperature and pressure conditions to generate steam. These harsh conditions subject the boiler to significant wear and tear over time.
- Corrosion and Erosion: The boiler is exposed to corrosive elements present in the fuel and water used for steam generation. This leads to corrosion of boiler tubes and other components. Additionally, erosion can occur due to the high-velocity flow of steam and combustion gases within the boiler.
- Scaling and Fouling: Scaling and fouling of boiler tubes and heat transfer surfaces are common issues in thermal power plants. Minerals present in water can deposit on the internal surfaces of the boiler, reducing heat transfer efficiency and increasing the risk of overheating.
- Safety Concerns: Boiler malfunction or failure can have severe safety implications, including the risk of explosions. Regular maintenance and inspection are crucial to ensuring the safe operation of the boiler.
While other components such as the superheater, steam turbine, and condenser also require maintenance, the boiler typically demands the highest level of attention due to the reasons mentioned above. Proper maintenance of the boiler is essential for the efficient and safe operation of the thermal power plant.