Question 99Motor Plants - QMED

The correct answer is D) Single input, single reduction, reversing gear. This is the most accurate description based on the illustration MO-0085, which depicts a cutaway drawing of a reduction gear used for medium-speed diesel propulsion. A single input shaft from the diesel engine is connected to a single reduction gear, and the gear is designed to be reversible, allowing the propeller to rotate in both forward and reverse directions. The other options are incorrect because they do not accurately match the illustration. Option A describes a non-reversing gear, Option B describes a double reduction gear, and Option C describes a double reduction reversing gear, none of which are shown in the provided illustration.