Aircraft Instruments and Systems

3 important questions on Aircraft Instruments and Systems

How does the ASI work?

ASI measures dynamic pressure.
difference between total pitot pressure and the static pressure (dynamic pressure= total - static)

When more reception HF? Night or Day

Night due to Ionosphere because during the day the sun makes up most of the ionosphere which is lower

What oxygen delivered when selected to NORM

sea-level pressure mixture of oxygen and cabin air


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