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← GeographyWhich issue dominates when airborne volcanic tephra encounters jet engine turbines?
A)Acceleration of high-cycle fatigue cracking✓
B)Electrostatic interference with control circuits
C)Dissolution of turbine blade alloys
D)Deposition resulting from homogeneous nucleation
💡 Explanation
High-cycle fatigue accelerates because abrasive particles impact rapidly causing micro-cracks as a result of abrasive wear; therefore, blades fail prematurely, rather than exhibiting issues from conductivity or general chemical corrosion.
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