Fine metallic particles, which may originate from wear or failure of the lube oil service pump internal parts, are prevented from contaminating the bearings served by the lube oil system by __________.

Correct Answer: Option D — use of the magnetic strainers in the lube oil service pump discharge piping

Magnetic strainers installed directly on the discharge side of lube oil service pumps capture fine ferrous wear particles generated by the pumps themselves.