Engine : Expired / Gas Turbines - 117/176
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| In the marine gas turbine engine shown in the illustration, the 9th stage bleed air is used for __________. Illustration GT-0017 |
| A) high pressure turbine 2nd stage nozzle cooling |
| B) compressor balance piston cavity pressurization |
| C) power turbine cooling |
| D) sump pressurization and cooling |
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Illustration GT-0017
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