Question 100Gas Turbine - 1st Asst/Chief
70% to passIn the marine gas turbine engine shown in the illustration, the 13th stage bleed air is used for which of the following? Illustration GT-0017
AHigh pressure turbine 2nd stage nozzle cooling.
BPower turbine cooling.
CPower turbine balance piston cavity pressurization.
Dsump pressurization and cooling
AI Explanation
The correct answer is A) High pressure turbine 2nd stage nozzle cooling. The 13th stage bleed air from the gas turbine engine compressor is used to provide cooling air for the second stage nozzle of the high pressure turbine. This cooling air helps maintain the structural integrity of the turbine components by preventing excessive temperatures. The other answer choices do not accurately describe the function of the 13th stage bleed air in this type of marine gas turbine engine.
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