Question 2653 Deck General

The correct answer is B) 2. This is because the regulation in 46 CFR 25.40-1 states that all uninspected motor vessels constructed after April 25, 1940, which use fuel with a flash point of 110°F (43°C) or less, shall have at least two ventilator ducts for the removal of explosive or flammable gases from every engine and fuel tank compartment. The other options are incorrect because 1 duct would be insufficient, 3 ducts would exceed the minimum requirement, and 4 ducts would also exceed the minimum requirement specified in the regulation.