In the Yoke situation, what is the requirement for closures and fittings after the duty is completed?

The correct approach in a Yoke situation emphasizes the importance of ensuring safety and readiness for potential emergencies. After completing the duty, all closures and fittings are to be closed as part of the protocol. This helps maintain the integrity of the control systems and prevents the entry of water, which could lead to operational hazards.

By ensuring that closures and fittings are secure after drills or operations, the crew can uphold the vessel's safety standards. This is crucial in maintaining a controlled environment, particularly in maritime situations where water ingress can quickly lead to dangerous conditions. Proper adherence to this requirement also sets a routine that reinforces the importance of vigilance and preparedness for unforeseen incidents.

For contrast, leaving closures open or maintaining them for ventilation without a definitive purpose can increase risk and compromise the vessel's safety. Periodic checks of these closures may be important but do not negate the necessity of closing them after the duty is completed. Hence, the standard practice is to ensure all fittings are closed as a precautionary measure.