Question 528 Deck General

The correct answer is D) can be released while under strain. A pelican hook is a type of hook used to quickly and safely release mooring or towing lines. The key feature of a pelican hook is that it can be opened and released even when the line is under tension or strain. This allows the line to be quickly detached in an emergency situation, such as when a vessel needs to quickly cast off. The other answer choices do not accurately describe the key functionality of a pelican hook.