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EN ATPL Aircraft General Knowledge - Airframe, Systems, Powerplant Questions in English
Practise Aircraft General Knowledge - Airframe, Systems, Powerplant
Turbine blade stages may be classed as either 'impulse' or 'reaction'. In an impulse blade section:
The disadvantages of axial flow compressors compared to centrifugal flow compressors are 1 - expensive to manufacture 2 - limited airflow 3 - greater vulnerability to foreign object damage 4 - limited compression ratio The combination of correct answers is:
Using compressor bleed air to power systems:
When hot engine oil transfers heat to cooler fuel in a turbine-engine fuel-oil heat exchanger, the normal result is:
The purpose of the barometric correction in a fuel controller is to:
The engine pressure ratio (EPR) is the ratio of:
Which statements about an engine using engine pressure ratio (EPR) as its thrust-setting reference are correct? 1) EPR is the ratio of turbine-discharge total pressure to compressor-inlet total pressure. 2) A single EPR value guarantees the same net thrust at every Mach number and altitude. 3) Accurate power setting requires the applicable engine/aircraft EPR reference and the specified ambient-condition corrections. 4) EPR is the pressure difference obtained by subtracting compressor-inlet pressure from turbine-discharge pressure. 5) Ice blocking the inlet-pressure sensing probe is guaranteed to make indicated EPR lower than actual EPR. Select all the correct statements.
The fuel temperature, at which, under standard conditions, the vapour ignites in contact with a flame and extinguishes immediately, is the:
An engine pressure ratio (EPR) gauge reading normally shows the ratio of:
The reason for having a low pressure fuel-cooled oil cooler in a recirculatory type oil system is to:
