How often are the logic circuits of a ship's fuel pumps tested?

The logic circuits of a ship's fuel pumps are tested semiannually to ensure their proper functioning. This frequency is established to maintain operational reliability and safety, given that these systems play a critical role in the combustion process of gas turbines. Regular testing helps identify any discrepancies or failures in the logic circuits that could lead to fuel delivery issues or affect the performance of the turbines.

Testing these circuits semiannually strikes a balance between thorough oversight and operational demands. Testing too frequently, such as monthly, could lead to unnecessary resource expenditure and operational downtimes without significantly increasing reliability, while annual testing might not catch potential issues in time to prevent disruptions. Therefore, semiannual tests allow for timely detection and rectification of any problems, contributing to the overall efficiency and safety of the fuel system.