Labyrinth seals used to reduce leakage around a turbine shaft are constructed of __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — machined metallic packing strips or fins
In USCG Steam Plants (Boilers & Turbines), regarding 'Labyrinth seals used to reduce leakage around a turbine shaft are constructed of', the verified engineering fact is: 'machined metallic packing strips or fins'.
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