Engine Safety (Supplementary) USCG Question #415 (Set 5)

Where would a coarse screen wire-mesh strainer normally be found on a diesel engine lubrication system?

Official USCG Answer & Rule Citation

Correct Answer: Option D — pump suction line

Coarse screen wire-mesh strainers are installed on lube oil pump suction lines to protect the positive displacement pumps from large particulate damage and cavitation while maintaining minimal pressure drop on the low-pressure intake side.

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