Engine Safety (Supplementary) USCG Question #735 (Set 9)

Before any auxiliary diesel engine hydraulic starting system is opened for servicing or repair, you must __________.

Official USCG Answer & Rule Citation

Correct Answer: Option D — bleed off all hydraulic pressure from the system

Bleeding off all hydraulic pressure ensures stored potential energy is safely dissipated before breaking containment, protecting engineering personnel from high-pressure fluid injection injuries during auxiliary diesel starting system maintenance.

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