Which consequence results when turbine over-speeding in turboprop aircraft?

💡 Explanation

Blade flutter induces structural failure because high rotational speeds cause aerodynamic instability resulting in oscillations; therefore, blade failure is likely, rather than an increase in fuel efficiency, due to loss of regulated airflow through the blades.

• Which process limits the coefficient of performance (COP) in thermoelectric heat pumps as hot-side temperature increases?
• Which risk increases when hydraulic pump fluid viscosity is too high, approaching cavitation conditions?
• Which risk increases when hydraulic actuator's proportional control valve experiences stiction?
• Which outcome occurs when increased air density affects helicopter rotor blades?
• Which failure type is most likely as the cross-sectional area of rebar decreases in a concrete beam?
• Which outcome occurs when the oil viscosity decreases in an industrial refrigeration system's screw compressor?