Question 146Steam Plants - QMED

The correct answer is B) reduction gears. The source of metal particles adhering to the magnets in a lube oil strainer is likely from the reduction gears. Reduction gears are responsible for transferring power from the main engine to the propeller shaft, and the constant meshing and wear of the gear teeth can generate small metal particles that can be captured by the magnets in the lube oil strainer. The other options are less likely sources of the metal particles. A) shaft journal refers to the bearing surface where the shaft rotates, which typically does not generate significant amounts of metal debris. C) Babbitt material and D) bearing shell refer to softer components that are less likely to produce the types of metal particles found in the lube oil strainer.