Question 20-1 : Wind speed ? [ Admission english ]
Increases with altitude
Question 20-2 : At night as a valley cools down the air becomes denser and flows downward and is referred to as ?
Katabatic winds
Question 20-3 : A cumulonimbus cloud creates a risk of ?
Windshear
Question 20-4 : When isobars on a weather map are close together the wind is most likely to be ?
Strong
Question 20-5 : The following sequence of clouds 'cirrus cirrostratus altostratus and nimbostratus' is typically associated to a ?
Warm front
Question 20-6 : Thermal turbulence is caused by ?
Surface heating convection
Question 20-7 : Mechanical turbulence is the result of ?
Friction between the air and the ground
Question 20-8 : The turbulence caused by a wind blowing over rough terrain is the ?
Mechanical turbulence
Question 20-9 : The turbulence caused by a wind blowing perpendicular to a mountain is the ?
Orographic turbulence
Question 20-10 : Thermal turbulence depends on .1 environment.2 the soil contrasts.3 the degree of air instability.4 the pilot's skill.the combination that regroups all of the correct statements is ?
1 2 3
Question 20-11 : Steam fog occurs when ?
Very cold air passing over a warm water surface
Question 20-12 : Wind shear is a dangerous phenomenon that is characterized by ?
A wind velocity variation / wind direction variation over a short distance
Question 20-13 : Cumulonimbus cb is a cloud that generates vertical currents ?
Ascending and descending
Question 20-14 : The cumulonimbus is the most dangerous cloud it can be easily recognized since ?
It has a very large vertical extension with a top that can exceed 35000 ft
Question 20-15 : Ground frost may be formed by ?
Night time evaporation
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