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Engine : Gas Turbines - 172/277
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On a gas turbine propulsion vessel, you notice a slow but steady increase in gas turbine vibration and specific fuel consumption as the voyage has progressed. What would be a good maintenance technique to use to correct these increases?
A) Secure the engine and water wash the compressor off-line.
B) Increase the Variable Stator Vane setting to supply more air to the combustor.
C) Water wash the power turbine on-line.
D) Increase gas generator RPM to a more efficient setting.
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