Discussion
Match each parameter in List I with a typical sampling rate in List II.
List I
A. Vertical acceleration
B. Control column position
C. Pressure altitude
D. Fuel quantity
List II
1. 8 Hz
2. 4 Hz
3. 1 Hz
4. 0.25 Hz
Select the correct match.
Answer: D
Correct answer: A-1, B-2, C-3, D-4
The rates descend with the speed at which each parameter can meaningfully change. Vertical acceleration is fastest at 8 Hz, carrying turbulence and hard landings.
Control column position follows at 4 Hz, pressure altitude at 1 Hz, and fuel quantity at 0.25 Hz - once every four-second frame, which is ample for a quantity that changes over minutes. Sorting the parameters by how fast they move and the rates by magnitude pairs them without any recall of particular figures.
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