9 Flashcards
The inlet duct of a jet engine at subsonic speeds is designed to convert
kinetic energy into pressure energy
What is the reason for the use of oil/fuel heat exchangers in the fuel system of a large turbine powered aircraft?
Prevent ice formation clogging the fuel filter
The artificial feel system of a powered flight control system operates by feeding back control forces based on -:
the difference between static pressure and pitot pressure
Which of the following is a method of airflow control in an axial flow compressor of a gas turbine engine?
Variable stator vanes
Which of the following is an advantage of an axial flow compressor over a centrifugal flow compressor in a gas turbine engine?
High compression ratio
High speed buffet boundary for a jet transport category aircraft will increase with an increase in
Fuel burn
Which element of the antiskid brake system provides protection for the hydraulic system against damage from antiskid brake operation?
The modulator valve
The speed in a jet aircraft which is not controlled by auto throttle is -
Vertical speed
The interlocks in the reverse thrust system of a jet engine prevent:
Full reverse thrust if the reverser is not in the full reverse position
Large transport category aircraft may be equipped with multiple batteries. When this is done the batteries are usually connected in:
Parallel to increase the current (amps) at constant voltage
With regard to a conventional flight instrument display when an aircraft is on an ILS -
the TO/FROM indicator is not displayed
The specific gravity (SG) of a particular turbine fuel is 0.787.
This means that -
100 ltr of the fuel will weigh 78.7 kg
The function of a restrictor valve fitted to the landing gear by hydraulic system of a large jet aircraft is to:
Prevent hydraulic cavitation during gear extension
