13 Flashcards
Primary control rate of climb is achieved through variations in:
Power of thrust
The compressor primarily converts:
Kinetic energy to pressure energy
The ‘ram ratio’ in a gas turbine engine is defined as the ratio of -
total pressure to static pressure at the air intake
Out of the items listed below, which is NOT an input to a modern Auto-throttle system?
ILS LOC
In which way do the “safety valves”, (also known as “Fluid Transfer Valves”) in the nose wheel steering system act in the event of total hydraulic failure?
Place the nose wheel into castor mode
An affect of extending slats on approach is to:
Increase the co-efficient of lift and re-energise chord-wise flow
The purpose of the water separator in an ACM air-conditioning unit is to:
Stop mist coming into cabin
The component of the autopilot system which monitors the gyro sensing signal and ensures that the correct attitude reference is being maintained is -
the feedback comparitor
For the B767 featuring 3 autopilot’s conducting a ‘FAIL OPERATIONAL’ auto-land ILS approach, after ‘bus isolation occurs’ the minimum number of separate electrical supply systems
required is:
2AC/1DC supply
The hydraulic reservoir in a jet aircraft hydraulic system is pressurised by bleed air to -
ensure a positive fluid supply to the pumps at all times
The stall speed of an aircraft at a particular gross weight will be highest with -
a forward centre of gravity
In the event of the nose-wheel steering failure, the safety valves will:
Allow nose wheel to swivel
The power response of a turbojet engine compared to a turboprop at various RPM settings is
slower at low RPM
In order to delay flow separation on an aerofoil at the stall, the characteristics of the boundary layer should ideally be -
turbulent due to the higher velocities at the wing surface
With regard to jet transport electrical systems
with a parallel bus system the generators are paralleled
