The lube oil strainer shown in the illustration is used on the reduction gear of a mid-size diesel engine. The strainer elements consist of __________. Illustration MO-0057

Correct Answer: Option D — metal disks

Edge-type strainers utilizing closely spaced metal disks are standard for high-viscosity reduction gear lube oil filtration; accumulated contaminants are easily scraped off manually or mechanically without interrupting continuous oil flow to critical rotating machinery.