Which of the following may be a symptom of a dangerous condition at-sea?

Each of the choices listed can indicate a potentially dangerous condition while at sea, highlighting the need for vigilance and swift action. A wisp of smoke can suggest a fire or overheating electrical systems, which poses a significant threat to the safety of crew and vessel. Minor loss of power could indicate issues with the ship's electrical systems or engine, affecting the vessel’s maneuverability and safety. Excessive warmth of a bulkhead may point to overheating equipment or electrical components, leading to fire risks or structural failure.

When combined, all these symptoms can signify underlying problems that require immediate assessment and action to ensure the safety of the ship and crew. Therefore, selecting all of these potential indicators as symptoms of danger emphasizes the importance of situational awareness and proactive measures in maritime operations.