4 Flashcards
The antiskid brake system on a jet transport aircraft allows maximum braking without loss of traction. If, during operation of the antiskid braking system, the pilot feels a rapid oscillation through the pedals, the probable cause is:
Normal operation of the system
If the wings are level in steady asymmetric flight in a multi-engined aircraft, the balance ball
will be:
In the centre
The purpose of the bogie wheel landing gear configuration compared to a single wheel on a main gear leg is:
Reduced tyre surface area contact, reduced tyre pressures and higher ACNs
Regarding inertial reference systems (IRS):
An IRS can derive current true heading independent of other inputs
With regard to the monitoring of autopilot systems via the auto-land status enunciator:
A land 2 indication means the level of redundancy is such that any single fault would not cause a significant deviation from the flight path (fail passive)
Air is slowed down in the combustion chamber of a gas turbine engine to:
Prevent flame out
If thermocouples are used in parallel to measure the temperature in a jet engine, the temperature shown will be:
The average temperature of all probes on the circuit
The minimum position input(s) required to initialise an inertial navigation system are/is:
Lat & long
The auto-flight mode combination which controls thrust to maintain a set aircraft speed is:
VNAV PATH and SPD
The errors associated with a Machmeter are:
Instrument and position
In a split bus electrical system consisting of two main engine driven generators:
A bus is only supplied by one generator at any given time
Standpipes in the hydraulic system in a jet transport aircraft needed to:
Ensure fluid supply in the event of primary system fluid loss
Compared to a high bypass turbofan, a pure turbojet engine has:
More thrust at the same mass flow
An aircraft is filled to full tank volume capacity with AVTUR for a Specific Gravity (SG) of 0.8.
If the SG has been 0.7 instead of 0.8, the available range would be:
Less
Concerning large aircraft electrical systems: (split bus systems)
Split bus systems need not run generators in parallel