Question 560Steam Plants - Assistant Engineer

The correct answer is D) Astern turbine. In a cross-compound turbine arrangement, the low-pressure turbine rotor is typically connected to an astern turbine. The astern turbine is responsible for providing the necessary power for maneuvering the vessel in reverse or astern. This is a crucial component in the overall propulsion system, as it allows the vessel to safely navigate and control its movement in reverse. The other options are incorrect because they do not accurately describe the component found at the end of the low-pressure turbine rotor in a cross-compound turbine arrangement. A cruising turbine, a back-pressure turbine, and a high-pressure turbine are not the correct components in this specific configuration.