Question 4910 Deck General

The correct answer is A) 40 feet. The maximum allowed KG (vertical center of gravity) for a vessel like the COASTAL DRILLER underway at a draft of 10.5 feet in a severe storm is 40 feet. This is based on stability requirements for offshore supply vessels operating in such conditions, as specified in the US Coast Guard regulations. The other options are incorrect because they do not align with the typical stability standards for a vessel of this type and draft. A KG greater than 40 feet would likely make the vessel overly top-heavy and prone to instability in severe weather, which would be unsafe and not in compliance with the relevant regulations.