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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Aircraft General Knowledge - Airframe, Systems, Powerplant > For an approved hydraulic fluid at a given operating temperature, which condition can initiate vapour cavitation in a pump?

454 - ATPL Question Bank in English - For an approved hydraulic fluid at a given operating temperature, which condition can initiate vapour cavitation in a pump?

Question 454 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot Licence

Local liquid pressure rises above the fluid’s vapour pressure

Fluid viscosity decreases while local pressure remains above its vapour pressure

Local liquid pressure falls below the fluid’s vapour pressure

Reservoir gas pressure rises while pump-inlet liquid pressure remains unchanged

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