Meteorology - EASA Drone License A2

Question 1

What does the term 'Wind Gust' mean in an aviation weather report?

Accepted Answer

A rapid, brief, and sudden increase in wind speed, usually lasting less than 20 seconds, which can severely destabilize a drone

Answer

A steady, constant wind speed lasting for hours

Answer

The wind generated by the drone's own propellers

Answer

A wind blowing strictly vertically

Question 2

How does the 'Funneling Effect' (or Venturi Effect) alter the wind?

Accepted Answer

When wind is forced through a narrow space, like a mountain pass or between tall buildings, its velocity increases significantly

Answer

It makes the wind blow in circles

Answer

It cools the wind down to freezing temperatures

Answer

It completely stops the wind from moving

Question 3

In a METAR report, the abbreviation 'GR' indicates the presence of:

Accepted Answer

Hail (from the French 'Grêle')

Answer

Ground Fog

Answer

Gusting Rain

Answer

Gravel storms

Question 4

In which atmospheric layer is the protective ozone layer primarily located?

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Exosphere

Question 5

If you are flying a multirotor and experience a sudden, strong updraft from a thermal, what is the expected initial reaction of the drone?

Accepted Answer

The drone will rapidly gain altitude; the flight controller will then reduce motor RPM to compensate and bring it back down to its target altitude

Answer

The drone will pitch forward

Answer

The drone will suddenly drop towards the ground

Answer

The drone will turn off completely

Question 6

Why is a Katabatic wind often much stronger than an Anabatic wind?

Accepted Answer

Because katabatic winds (cold, dense air draining downslope) are assisted by gravity, making them accelerate and often become quite strong

Answer

Because the sun is hotter in the afternoon

Answer

Because they only happen near the equator

Answer

Because they are driven by the Coriolis effect

Question 7

How does surface friction affect the wind near the ground compared to the 'geostrophic wind' at higher altitudes?

Accepted Answer

It slows the wind down and causes it to blow slightly across the isobars toward areas of lower pressure

Answer

It speeds the wind up and makes it blow parallel to the isobars

Answer

It has no effect on wind direction or speed

Answer

It forces the wind to blow strictly vertically

Question 8

If you read a METAR and see the cloud group 'OVC045', what does this mean?

Accepted Answer

Overcast sky with the cloud base at 4,500 feet Above Ground Level (AGL)

Answer

Scattered clouds at 450 feet

Answer

Overcast clouds moving at 45 knots

Answer

Visibility is limited to 45 metres

Question 9

A remote pilot is conducting a mapping mission, moving from a high-pressure area to a low-pressure area. If they do not recalibrate the barometric sensor, what risk do they face regarding the displayed altitude?

Accepted Answer

The altimeter will display a value higher than the actual altitude, potentially leading the pilot to descend dangerously into ground obstacles

Answer

The altimeter will indicate a lower altitude than actual, leading the drone to fly too high into controlled airspace

Answer

The drone will lose its GPS signal due to the change in atmospheric density

Answer

The battery will drain faster because of the reduced pressure

Question 10

In an aviation weather forecast (TAF), what does the abbreviation 'TEMPO' indicate?

Accepted Answer

Temporary fluctuations in the forecasted weather, lasting for less than one hour at a time

Answer

A permanent and complete change in the weather conditions

Answer

A gradual change occurring over several hours

Answer

The exact temperature at the airport

Exam questions Meteorology - EASA Drone License A2

EASA Drone License A2: Meteorology 10 Questions no time limit

Exam questions Meteorology - EASA Drone License A2

EASA Drone License A2: Meteorology 10 Questions no time limit

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