Engine Safety (Supplementary) USCG Question #94 (Set 2)

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 A — pump suction line

Coarse wire-mesh strainers are installed on lube oil pump suction lines to protect positive displacement pumps from large debris, metal shavings, and sludge accumulation while preventing oil starvation and cavitation at the pump inlet.

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