Regarding the fuel injector shown in the illustration, the purpose of piece No. 38 is to __________. MO-0059
Official USCG Answer & Rule Citation
Correct Answer: Option A — filter the fuel
Fuel system integrity requires protection against particulate contamination. Piece No. 38 within the fuel injector assembly functions as an internal fine-mesh edge-type or porous metal filter designed to capture any debris prior to reaching the close-tolerance nozzle valve orifice.
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