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Question 63-1 : Clouds which cloud type indicates the presence of significant vertical currents at low levels ? [ Diploma PowerVision ]

Cumulus

Question 63-2 : Thunderstorms thunder and lightning are associated with ?

Cumulonimbus clouds.

Question 63-3 : Among the following clouds the one most likely to produce hail is the ?

Cumulonimbus.

exemple 71: Cumulonimbus
Stratus. cirrus. altocumulus.

Question 63-4 : The average speed of a depression low pressure system is ?

25 kt.

exemple 75: 25 kt
5 kt. 50 kt. 100 kt.

Question 63-5 : Underneath a stable clouds ceiling you may encounter 1 high intensity windshear2 shower rain3 turbulence4 continuous rain ?

4.

exemple 79: 4
1, 2, 3 and 4. 1, 3. 2, 3.

Question 63-6 : Stability and instability which of the following items will not affect air stability ?

Dew point.

exemple 83: Dew point
Thermal gradient. wind. solar radiation.

Question 63-7 : On a clouds and weather forecast chart the isobars are represented at intervals of ?

4 hpa.

exemple 87: 4 hpa
8 hpa. 16 hpa. 32 hpa.

Question 63-8 : On a weather chart the wind flows the isobars above 3000 feet above ground ?

Parallel to.

exemple 91: Parallel to
Around away from towards

Question 63-9 : Turbulence clouds the smoothest flight should be expected ?

Under an overcast of stratus cloud.

exemple 95: 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 63-10 : Turbulence regarding turbulence ?

It is a dangerous and often unpredictable phenomenon.

exemple 99: 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 63-11 : Turbulence turbulence near the ground due to surface heating will usually be most severe ?

During the early afternoon.

exemple 103: During the early afternoon
About mid-morning. during the early morning hours after sunrise. immediately after sundown.

Question 63-12 : A drone may being struck by lightning if ?

It flies close to a cumulonimbus.

exemple 107: It flies close to a cumulonimbus
It has its embedded video equipment in operation. it flies close to a cirrostratus. it has a magnetic compass.

Question 63-13 : An atis automatic terminal information service permits to obtain the following information ?

Surface wind direction and runway in use.

exemple 111: Surface wind direction and runway in use
Aircraft in flight in the area. temperature and dewpoint to define cloud height. clearance from flight control to takeoff.

Question 63-14 : A squall is characterized by ?

A very large variation of wind speed.

Question 63-15 : Unstable cloud is characterised by 1 turbulences2 wind gusts3 showers4 continuous rain ?

1 2 and 3.

exemple 119: 1 2 and 3
1 and 4. 1 and 3. 2 and 4.



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