Question 31 MODU03 - Ballast Control Operator

The Correct Answer is D **Explanation for Option D (Correct):** The primary operational advantage of a davit-launched liferaft (often mandatory on passenger ships and tankers) is that it allows the crew or passengers to board the raft while it is still secured on the deck or at the embarkation station, and then be safely lowered to the water by the davit. This is critical in harsh weather, high seas, or situations where the vessel is listing, as it allows for a dry launch. Avoiding entering the water significantly increases the chances of survival by preventing immediate hypothermia and minimizing risk of injury during abandonment. **Explanation for Other Options (Incorrect):** * **A) The davit-launched liferaft has a built-in sprinkler system for fire protection.** While survival crafts (particularly totally enclosed lifeboats on tankers) may have water spray systems, this is not a universal distinguishing feature of **davit-launched liferafts** compared specifically to all types of **inflatable liferafts**. Furthermore, the primary advantage relates to the method of embarkation and launch, not fire suppression features. * **B) The davit-launched liferaft is made of fire-retardant material.** All SOLAS-approved liferafts (both davit-launched and throw-over type inflatable rafts) are required to use fire-retardant materials to meet international safety standards. This is a common requirement, not a unique advantage of the davit-launched type. * **C) The davit-launched liferaft is easier to maintain.** In fact, davit-launched liferafts, due to the complexity of the davit machinery, suspension system, and release gear (hooks), often require more specialized and frequent maintenance and inspections than the standard canister-packed inflatable liferaft.