Plant Operation Practice Test

Which of the following is critical for maintaining the boiler’s efficiency?

1. Regular maintenance

2. High water levels

3. Consistent fuel type

4. Low external temperatures

The correct answer is: Regular maintenance

Regular maintenance is critical for maintaining the boiler’s efficiency because it ensures that all components operate as intended. Over time, boilers can accumulate scale, sediment, or debris, which can hinder heat transfer and reduce efficiency. Additionally, regular check-ups can identify potential issues before they lead to more significant problems, such as leaks or pressure drops, which can further compromise efficiency. Maintenance includes tasks like cleaning, inspections, and adjustments, all of which contribute to optimal performance, safety, and longevity of the boiler system. In contrast, while high water levels, consistent fuel type, and low external temperatures can influence boiler operation to some extent, they do not address the broader range of factors impacting efficiency as comprehensively as regular maintenance does. High water levels, for example, can lead to operational hazards, while inconsistent fuel types can disrupt combustion processes. Low external temperatures may require adjustments but do not inherently improve the boiler's efficiency without proper maintenance to adapt to those changes.