Domanda 435, Meteorology - ATPL - Airline Transport Pilot license

Mountain waves are not experienced beyond 100 miles downwind from initiating high ground, regardless of the height of the ground
The absence of cloud over high ground indicates the absence of mountain waves
Flight with headwind toward high ground is likely to be more hazardous than flight with tailwind toward high ground
Flight with tailwind toward high ground is likely to be more hazardous than flight with headwind toward high ground