Steam Plants (Boilers & Turbines) USCG Question #278 (Set 10)

To test an automatic low lube oil pressure trip on an idling turbo generator and at the same time prevent the chance of bearing damage, you should __________.

Official USCG Answer & Rule Citation

Correct Answer: Option B — secure the steam supply valve to the throttle valve and observe the oil pressure as the throttle trips during the slowdown and ensure a supply of oil with the hand or standby pump when the pressure drops to 2-3 psi

Testing low oil pressure trips safely requires securing the steam supply while ensuring standby or hand pump availability to prevent unlubricated rotation during coast-down.

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