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431 - ATPL - In a gas turbine engine, compressor blades, which are not rigidly fixed in position when the engine is stationary, take up a rigid position when the engine is running due to:

Question 431 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Oil pressure.
The resultant of aerodynamic and centrifugal forces.
Blade creep.
Thermal expansion.

Training tests and timed exam simulations ATPL - Airline Transport Pilot license