Question 4214 Deck General

The correct answer is D) The side forces will be cancelled out. The main advantage of a twin-screw vessel over a single-screw vessel is that the side forces generated by the two propellers tend to cancel each other out, improving the vessel's maneuverability and stability. With a single-screw vessel, the propeller's rotation creates a side force that can make the vessel difficult to control, especially at low speeds. However, in a twin-screw configuration, the opposing side forces generated by the two propellers counteract each other, resulting in better directional control and stability. The other answer choices are incorrect because they do not accurately describe inherent advantages of a twin-screw vessel. The drag effect is not cancelled out, the vessel's speed may not necessarily increase, and the correct trim is not more easily obtained solely due to the twin-screw configuration.