Plant Operation Practice Test

What must be carefully replaced when cleaning a fuel oil strainer?

1. Gasket

2. Separator

3. Cap

4. Filter

The correct answer is: Gasket

Replacing the gasket when cleaning a fuel oil strainer is crucial because it ensures a proper seal between the strainer and its housing. A damaged or improperly installed gasket can lead to leaks, which can cause contamination in the fuel system or even lead to fuel spills, presenting both operational and environmental risks. The integrity of the sealing surface must be maintained to prevent air ingress or fuel leakage, which can adversely affect system performance. In contrast, while components like the filter, separator, and cap also play important roles in the functionality of the fuel oil strainer, they do not directly relate to maintaining a secure and leak-free connection as the gasket does. Filters may need to be replaced periodically based on their condition, but the gasket is critical for ensuring a safe and efficient operation after maintenance activities.