Question 20-1 : Wind speed ? [ Admission english ]

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 environment2 the soil contrasts3 the degree of air instability4 the pilot's skillthe combination that regroups all of the correct statements is ?

1 2 3.

Question 20-11 : Steam fog occurs when ?

Question 20-12 : Wind shear is a dangerous phenomenon that is characterized by ?

Question 20-13 : Cumulonimbus cb is a cloud that generates vertical currents ?

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.