USCG Exam PracticeBearings, lubrication, and care of machine parts
Steam turbine driven propulsion machinery depending on forced lubrication is required by federal regulation to do which of the following upon failure of the lubricating system?
- A. Activate an audible alarm and reduce speed to ahead slow
- B. Switch automatically to an emergency gravity lube-oil tank
- ✓ Shut down automaticallyCorrect
- D. Transfer lube oil supply from the auxiliary pump without interrupting operation
Why C is correct
46 CFR §56.50-80(g) requires that steam turbine driven propulsion and auxiliary generating machinery depending on forced lubrication must be arranged to shut down automatically upon failure of the lubricating system. The emergency oil supply requirement in §56.50-80(i) applies to steam driven propulsion machinery and must sustain lubrication until the equipment comes to rest during that automatic shutdown.