What should a vessel do if it is sinking and in distress?

When a vessel is sinking and in distress, the appropriate course of action is to launch distress signals and attempt to communicate its situation. This is crucial for several reasons.

First, launching distress signals informs nearby vessels and maritime authorities that there is an emergency situation, such as a sinking vessel that requires immediate assistance. Distress signals can include visual signals, like flares, as well as radio communications, such as the internationally recognized Mayday call, which alerts others to the urgency of the situation.

Effective communication during a distress event is essential for coordinating a rescue operation. By making their situation known, the vessel increases the chances of receiving timely help, which can be vital for the safety of all on board.

Remaining silent in an emergency (as suggested in one of the other choices) could lead to misunderstanding or a lack of response from nearby vessels, thereby putting lives at risk. Attempting to swim to safety or turning off the vessel's engines may distract from essential rescue efforts or hinder the vessel’s ability to stay afloat, potentially worsening the situation.