In what height range and at what intensity could you encounter turbulence in CAT area n°2?4
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Which layer of the atmosphere contains more than 90 per cent of all water vapour?4
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Considering the North Atlantic area north of 60°N during winter, the mean height of the tropopause is approximately:4
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The QNH of an airport at sea level is 983 hPa and the temperature deviation from ISA is-15°C below FL 100.What is the true altitude of FL 100?4
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Assume that an aircraft is flying in the northern hemisphere at the 500 hPa pressure surface on a heading of 270 degrees. Which of the following statements is correct?4
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An aircraft maintains a constant indicated altitude of 5500 FT from A (1050 FT/AMSL - QNH 968 hPa) to B (650 FT/AMSL - QNH 1016 hPa). Assuming that the altimeter subscale setting remains unchanged at 968 hPa, the height of the aircraft above the surface at B will be4
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What prevents air from flowing directly from high-pressure areas to low-pressure areas ?4
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Geostrophic wind is the wind when isobars are:4
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Which of the following is true concerning an aircraft that is flying at FL180 in the northern hemisphere, where wind is geostrophic and the true altitude remains constant?4
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Between which latitudes are you most likely to find the region of travelling low pressure systems during summer?4
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