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EN ATPL Aircraft General Knowledge - Airframe, Systems, Powerplant Questions in English
Practise Aircraft General Knowledge - Airframe, Systems, Powerplant
Which condition defines a gas-turbine engine hung start?
For a turbine engine, the term self-sustaining speed relates to the speed at which the engine:
An impulse coupling does not function at such speeds above those encountered in starting. Its engaging pawls are prevented from operating at higher speeds by
A chip detector in the oil system of an engine/gearbox is to indicate that
Vents in oil tanks are primarily to
For a conventional free-turbine turboprop in the governed flight (alpha) range, consider these statements. The propeller lever directly selects: 1 - Target propeller RPM. 2 - A turbine gas-temperature setpoint. 3 - Target gas-generator RPM. With the propeller governor maintaining selected RPM, the power lever changes fuel flow and thereby affects: 4 - Direct selection of the target propeller RPM. 5 - Engine torque. 6 - Turbine gas temperature, which must remain within limits. Which combination is correct?
For a turbojet stationary on the ground, assume nozzle exit pressure equals ambient pressure. Which statements are correct? 1 - Net thrust equals exhaust mass flow multiplied by exhaust velocity, with zero free-stream velocity. 2 - Thrust requires the exhaust to push against surrounding air as a solid reaction surface. 3 - Propulsive power delivered to the stationary aeroplane, thrust multiplied by aeroplane speed, is zero even though the engine consumes fuel and the jet carries energy. 4 - Full-power thrust is independent of outside-air temperature. Select all the correct statements.
The use of igniters is necessary on a turbo-jet: 1 - throughout the operating range of the engine 2 - for ground starts 3 - for accelerations 4 - for in-flight relights 5 - during turbulence in flight 6 - in heavy precipitation or in icing conditions. The combination which regroups all of the correct statements is:
For a transport aeroplane with an APU approved to provide electrical power and pneumatic air on the ground, which is the most complete list of external ground services that it can replace?
About a twin spool compressor:
