Question 1265 Deck Safety

The correct answer is D) a davit span with at least 2 lifelines. According to the regulations for international voyages, each open lifeboat carried on a vessel must be equipped with a davit span that has at least two lifelines. This is required to ensure the safe launching and recovery of the lifeboat in an emergency situation. The other options are incorrect because: A) a motor is not a mandatory requirement for open lifeboats, B) a mast and sail are not required for open lifeboats, and C) hand-propelling gear, while often included, is not a mandatory requirement for open lifeboats on international voyages.