Question 215 Deck General

The correct answer is A) only when properly relieved. According to Coast Guard regulations, a lookout is only permitted to leave their station when they have been properly relieved by another qualified lookout. This ensures that there is always an alert and attentive person keeping watch, which is crucial for the safety of the vessel and crew. Options B, C, and D are incorrect because they would allow the lookout to leave their post before being properly relieved, which is not permitted under Coast Guard rules.