Which of the following is a necessary procedure when abandoning ship by lifeboat?

Ensuring all crew members are onboard is a vital procedure when abandoning ship by lifeboat. This step confirms that everyone who needs to evacuate is accounted for before leaving the safety of the ship. Conducting a headcount allows the crew to address any missing personnel and ensures that no one is inadvertently left behind, which can be crucial for safety and survival.

Additionally, this procedure is part of the overall emergency protocol designed to manage evacuations efficiently. It fosters teamwork and communication among crew members, which is especially important in high-stress situations such as abandoning ship. Prioritizing the safety and well-being of all crew members maximizes the chances of a successful evacuation and survival in a crisis.

Other procedures, while important, address different aspects of the evacuation process, such as the handling of the lifeboat, personal effects, and situational awareness prior to departure but do not take precedence over ensuring that all crew members are safely onboard before abandoning the vessel.