Q1 CASA ATLP Systems and Aerody
Highest temp in a gas turbine engine is:
In the primary (front) part of the combustion chamber
The HOT battery bus is powered:
Only by the aircraft battery
Which is NOT an element of anti-skid?
Pneumatic reserve braking
Compared to a turbojet (pure jet) of the same thrust output, the high-pressure turbine of a turbo-
fan would be:
Smaller due to the reduced mass airflow
Which one is NOT an air data computer output?
Pitch attitude
The nose wheel steering follow-up does what?
Commands the steering valve to select the nose-wheel in neutral during gear retraction
With respect to a shockwave on a conventional wing section, which answer best describes the
characteristics of the airflow ahead and behind the ‘normal’ shockwave?
Super-sonic ahead of the shockwave, sub-sonic behind, with no change in airflow direction
Throttle is set during a climb in a turbo jet aircraft. Which element is maintained as the aircraft
climbs?
Fan speed (N1)
Vortex generators on a horizontal stabilizer primarily does what?
To reduce turbulent flow separation, and preserve elevator authority at all flight speeds.
Which answer best describes the effect of dissolved water in Avtur fuel?
Increases SG, and causes corrosion
Tyres must be replaced when:
There is a bulge in the tread
Air conditioner load on an engine can be relieved by:
Selecting the re-circulation fans on the air conditioner controller to on
Body gear when fitted:
Turns in the opposite direction to the nose gear to reduce tyre scuffing
Spiral instability is worst when?
Directional stability is high compared to lateral stability
Climbing at a constant CAS, you would expect Mach number and TAS to:
Both to increase
Climbing at a constant speed just below VMO, you would expect:
Increase the take off thrust setting, and/or move the C of G forward
A high-density altitude affects the VMCG speed in what way?
Decrease it
With the loss of the right engine, which statement is most correct?
With a bank toward the live engine, less rudder deflection will be needed, and the skid ball
will be slightly displaced to the live engine side
In aircraft with two engines mounted in pods beneath the wing, and one tail mounted engine with
its thrust line up high (e.g. DC10) failure of the left wing mounted engine would see:
A requirement for pitch up trim, a yaw to the left, right rudder trim required
Regarding factors affecting VMCA, which statement is MOST correct?
High density altitude, dihedral, and skid induced blanketing of the live engine wing, reduce
VMCA values
Which statement is MOST correct about drag?
Induced drag is highest at the angle of attack for maximum lift
Compared to a conventional wing a laminar flow wing has its position of maximum camber:
Further rearward
In comparing MCRIT and MCDR of a supercritical wing to a conventional cambered wing:
MCRIT and MCDR are both higher
Which statement is MOST correct?
Shark teeth or stall strips are fitted to the leading edges near the wing roots to stall first, and
provide more stable static longitudinal stability at the stall