Final answer:
The watch, quarter, and station bill on a ship must be checked every day to maintain operational safety and effectiveness, ensuring all crew members are aware of their responsibilities.
Step-by-step explanation:
The watch, quarter, and station bill is a comprehensive listing used aboard ships. It details every crew member's responsibilities during a watch, in an emergency, and during quarters when at sea or in port. It's vital for maintaining the effective operation and safety of the ship. For these reasons, it is crucial to check the watch, quarter, and station bill every day. This daily review helps ensure that all crew members are aware of their duties and any changes that might have been made from the previous day.