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Which risk increases when transitioning to supersonic speeds?

A)Compressor stall probability increases sharply
B)Reduced fuel injection pump efficiency
C)Increased turbine blade heat stress
D)Decreased nozzle throat erosion rate

💡 Explanation

Compressor stall risk increases because the **boundary layer separation** turbulence induces flow distortions. This reduces the compressor's ability to deliver compressed air, leading to stall at lower pressure ratios; therefore, stall probability increases rather than decreased efficiency or stress under these conditions.

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