Professional Quiz - Answers

Here are the answers to my professional level quiz

1.   What is Mach Tuck?

Mach tuck is the nose-down pitching moment an aircraft experiences as it passes its critical Mach number

2.   Inertial Reference System sensors include?

Accelerometers and laser gyros, mounted in the direction of the aircraft axis

3.   Severe compressor stall can be observed amongst others by?

A rise in turbine gas temperature (TGT) and an increase in vibration level

4.   Who is the final authority for the operation of an aircraft?

The captain

5.   Cabin pressure is controlled by?

The outflow valve(s)

6.   What is the minimum number of satellites required by a GPS in order to obtain a three dimensional fix?

4

7.   Take-off distance available (TODA) is?

The length of the take-off run available plus the length of clearway available (if provided)

8.   What is the maximum airspeed below 10,000?

250kt

9.   When do runway centreline lights go from white to alternating white to red?

900m from the lift-off end

10.  Altostratus clouds are classified as?

Medium level clouds

11.  A forward shift of the CG has what effect?

Increases static longitudinal stability

12.  In the event that the take-off mass is obstacle limited and the take-off flight path includes a turn, the bank angle should not exceed?

15 degrees up to height of 400 ft

13.  The lift off end of a 6,000ft long runway is 120ft higher than the threshold. What is the 'runway gradient'?

2.0%

14.  What is the Minimum Obstacle Clearance Altitude (MOCA)?

segment

The lowest published altitude in effect between radio fixes on VOR airways, off airway routes, or route segments which meets obstacle clearance requirements

15.  What flight levels are classified as RVSM airspace?

FL290-410 inclusive

16.  What causes wingtip vortices?

Spanwise airflow over the upper and lower surfaces of a wing that meet at the wing tips creating turbulence

17.  What is the Inter-Tropical Convergence Zone (ITCZ)?

The ITCZ is where converging air masses meet near the thermal equator

18.  An aircraft has 173 passenger seats.  There are 87 passengers on board.  How many cabin crew members must there be on board for a flight?

4

19.  Assuming standard atmospheric conditions, in order to generate the same amount of lift as altitude is increased, an aeroplane must be flown at?

A higher TAS for any given angle of attack

20.  Cabin pressure is controlled by?

The outflow valve(s)

21.  Who is the final authority for the operation of an aircraft?

The captain

22.  Severe compressor stall can be observed amongst others by?

A rise in turbine gas temperature (TGT) and an increase in vibration level

23.  Inertial Reference System sensors include?

Accelerometers and laser gyros, mounted in the direction of the aircraft axis

24.  Which convention on international air navigation resulted in the agreements concerning the responsibilities with illegal acts committed on board aircraft?

Tokyo convention

25.  Regardless of your position, time figures are transmitted with reference to which time zone?

UTC