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Question 22-1 : Underneath a stable clouds ceiling you may encounter 1 high intensity windshear2 shower rain3 turbulence4 continuous rain ? [ Certificate flight ]

4

Question 22-2 : On a clouds and weather forecast chart the isobars are represented at intervals of ?

4 hpa.

exemple 26: 4 hpa
8 hpa. 16 hpa. 32 hpa.

Question 22-3 : On a weather chart the wind flows the isobars above 3000 feet above ground ?

Parallel to.

exemple 30: Parallel to
Around away from towards

Question 22-4 : Turbulence cloudsthe smoothest flight should be expected ?

Under an overcast of stratus cloud.

exemple 34: Under an overcast of stratus cloud
On a clear hot summer day when there is no cloud. under scattered cumulus cloud. under a layer of stratocumulus cloud.

Question 22-5 : Turbulenceregarding turbulence ?

It is a dangerous and often unpredictable phenomenon.

exemple 38: It is a dangerous and often unpredictable phenomenon
For most flights, it represents no danger. today's uavs are designed to withstand it. only a trained pilot can cope with it.

Question 22-6 : Turbulenceturbulence near the ground due to surface heating will usually be most severe ?

During the early afternoon.

exemple 42: During the early afternoon
About mid-morning. during the early morning hours after sunrise. immediately after sundown.

Question 22-7 : Unstable cloud is characterised by 1 turbulences2 wind gusts3 showers4 continuous rain ?

1 2 and 3.

exemple 46: 1 2 and 3
1 and 4. 1 and 3. 2 and 4.

Question 22-8 : An orographic thunderstorm develops ?

In mountainous area or above relief.

exemple 50: In mountainous area or above relief
Over sea. over plain. at night.

Question 22-9 : A wind of 20 knots corresponds to an approximate speed of ?

10 ms.

exemple 54: 10 ms
30 km/h. 40 m/s. 10 km/h.

Question 22-10 : A northeast wind comes from ?

045°.

Question 22-11 : A southwest wind comes from ?

225°.

Question 22-12 : A wind blowing perpendicular to a relief will generate in the plain located after the leeward side ?

Updraughts and downdraughts.

Question 22-13 : A wind blowing perpendicular to a relief will generate currents ?

Up the slope on the windward side and down the slope on the leeward side.

Question 22-14 : A winter sea breeze which starts on the shore during the morning will create ?

Low stratus and fog on the land.

exemple 74: Low stratus and fog on the land
Thunderstorms at sea. a foehn effect along the coastline. convective instability.

Question 22-15 : A sea breeze is created when ?

The pressure decreases above the ground surface.

exemple 78: The pressure decreases above the ground surface
The pressure increases above the ground surface. ground surface cool faster than sea. a warm center forms above the sea.



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