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PPL Video Lectures (10 Jul 2020)

PPL Video Lectures covering Aerodynamics, General Knowledge, Performance, Meteorology And Navigation are now available through our website see front page for details.

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Night Vision

  • RitikSingh2000
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RitikSingh2000 created the topic: Night Vision

Hi Bob Sir. One of my friends recently sat the ATPL HPL exam, he passed however he brought back a question that has left me confused and I'm sitting my exam soon. The question goes: For a smoker, degradation of night vision usually begins at:
(A) 2000
(B )4000
(C) 8000
(D) Ground Level
**reason for confusion is that I know night vision deteriorates at 4000 ft, however, is that for a normal person & is so then would a smoker have a night vision deterioration at a lower altitude or same altitude?
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