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← ScienceWhich consequence results when exceeding turbine blade speed limits?
A)Cavitation erodes the blade surface
B)Mechanical resonance causes blade failure✓
C)Material creep reduces airfoil efficiency
D)Thermal expansion increases blade clearance
💡 Explanation
Mechanical resonance frequency being reached causes the rotor to vibrate excessively leading to fatigue and structural failure because the excitation matches a natural vibration mode; therefore catastrophic blade failure, rather than gradual creep or cavitation, is the result.
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