At what interval should the oil king check the lay-up status?

The correct answer is daily. The oil king is responsible for overseeing the maintenance and lay-up status of the oil systems, which includes ensuring that all oil is in good condition and that the machinery is functioning properly. Checking the lay-up status on a daily basis allows for prompt identification of any issues that may arise, such as leaks or contamination, and ensures that any required maintenance or remedies can be addressed in a timely manner. This frequency helps maintain operational readiness and safety, as well as prolongs the life of the equipment by ensuring it operates under optimal conditions. In contrast, checking less frequently, such as weekly, monthly, or hourly, may result in undetected problems that could lead to more significant issues or downtime.