Question 14Steam Plants - QMED

The correct answer is B) first reduction gear. The first reduction gear is responsible for the initial reduction of the engine's rotational speed to an appropriate level for the propeller. This reduction in speed is necessary to match the engine's high rotational speed to the lower, more efficient speed required by the propeller. The other answer choices are incorrect because: A) The first reduction pinion would be the smaller gear that meshes with the first reduction gear. C) The second reduction gear would be the next stage of gear reduction, further lowering the rotational speed. D) The second reduction pinion would be the smaller gear that meshes with the second reduction gear.