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You are here: home->amp->K02->K.8.4.5.6.A.1
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The purpose of directing bleed air to the outer turbine case on some engines is to
| | A) allow operation in a thermal environment 600 to 800 �F above the temperature limits of turbine blade and vane alloys. |
| * | B) provide optimum turbine blade tip clearance by controlling thermal expansion. |
| | C) provide up to 100 percent kinetic energy extraction from the flowing gases. |
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