Spring reinforced oil seals are generally installed with the tail or lip of the seal facing __________. GS-0152
Official USCG Answer & Rule Citation
Correct Answer: Option D — toward the oil pressure being sealed
The flexible lip of a spring-reinforced oil seal must face the fluid being contained. This orientation allows the internal pressure of the oil to assist the garter spring in forcing the lip against the shaft, creating a more effective seal and preventing leakage from the bearing housing.
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