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← TechnologyWhich outcome is hastened when a pneumatic control valve experiences choked flow?
A)Actuator seal failure is increased✓
B)System backpressure is decreased rapidly
C)Volumetric efficiency reaches steady-state
D)Compressor efficiency increases transiently
💡 Explanation
When choked flow occurs in a pneumatic control valve, the *Venturi effect* greatly increases flow velocity nearby, because the pressure significantly drops while the media flows through the valve. Therefore, seal wear accelerates rather than pressure decreases, due to localized high-speed abrasion.
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