Engine : Expired / Gas Turbines - 12/176
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| The purpose of the metal spray rub coating on the rotor and stator casing of a marine type gas turbine is to _________. |
| A) control airflow through the compressor |
| B) provide close vane to rotor and blade to stator case clearances |
| C) seal the circumferential dovetails |
| D) ensure protection for the gearbox adapter when removing or replacing the bearings |
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