Meteorology - ATPL - Airline Transport Pilot license

Test 10 domande Meteorology, tempo libero

1 - The temperature at FL 110 is -5°C. What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ? +3°C +7°C What will the temperature be at FL 50 if the ICAO standard lapse rate is applied ? +3°C +7°C -3°C 0°C

2 - Which of the following are favourable conditions for the formation of freezing rain? Cold air aloft from which hail is falling into air that is warm. Water droplets falling from cold air aloft with a temperature below 0°C into air with a temperature above 0� An isothermal layer aloft with a temperature just above 0°C through which rain is falling. Warm air aloft from which rain is falling into air with a temperature below 0°

3 - Which statement is true for hurricanes in the North Atlantic? The diameter is 50-500 m They intensify rapidly after landfall Their greatest frequency of occurrence is in winter From the earth's surface up to the tropopause the core is warmer than its surroundings

4 - Above and below a low level inversion the wind is likely to Change significantly in speed and direction Experience little or no change in speed and direction Change in direction but not in speed Change in speed but not in direction

5 - Vertical wind shear is A change of horizontal wind direction and/or speed with height A horizontal shear of vertical wind A change of horizontal wind direction and/or speed with horizontal distance A change of vertical wind speed with horizontal distance

6 - What jet streams are likely to be crossed during a flight from Stockholm to Rio de Janeiro (23°S) at FL 350 in July ? A polar front jet stream followed by one or two subtropical jet streams. One subtropical jet stream. A polar front jet stream followed by a subtropical jet stream and later, a second polar front jet stream. A subtropical jet stream followed by a polar front jet stream.

7 - What intensity and type of airframe icing is most likely to occur when aircraft descend rapidly from FL 320 (temp. -45°C) to FL 60 in warm, moist clear air? Moderate opaque rime Nil ice Light or moderate hoar frost Light opaque rime and light clear ice

8 - The ICAO Standard Atmosphere (ISA) assumes that temperature will reduce at the rate of: 1,98°C per 1000 FT up to 36090 FT and will then rise at 0.3°C per 1000 FT up to 65617 FT when it will remain constant 2°C per 1000 FT up to 65617 FT after which it will remain constant to 104987 FT 1.98°C per 1000 FT up to 36090 FT after which it remains constant to 65617 FT 2°C per 1000 FT up to 36090 FT and will then increase at 0.3°C per 1000 FT up to 65617 FT

9 - For the same pressure gradient at 60°N, 50°N and 40°N the speed of the geostrophic wind will be The same at all latitudes Greatest at 40°N Least at 50°N Greatest at 60°N

10 - The isobars drawn on a surface weather chart represent lines of equal pressure Reduced to sea level At a determined density altitude At height of observatory At flight level

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