Meteorology - EASA Drone License A2

Question 1

In a METAR, visibility is reported as 0800. How will the obscuration be coded?

Accepted Answer

FG (Fog), because the visibility is less than 1,000 metres

Answer

BR (Mist)

Answer

HZ (Haze)

Answer

RA (Rain)

Question 2

What effect does high humidity have on air density?

Accepted Answer

Because water vapour is lighter than dry air molecules, adding moisture makes the overall air mass less dense, which degrades aircraft performance

Answer

It makes the air denser, improving drone lift

Answer

It has no effect on air density

Answer

It causes the air density to fluctuate wildly every second

Question 3

If a METAR reports '+RA', the pilot should expect:

Accepted Answer

Heavy Rain, which can degrade visibility, overwhelm the drone's weather sealing, and add water weight to the airframe

Answer

Light Rain

Answer

No Rain

Answer

Freezing Rain

Question 4

In aviation meteorology, what does 'SIGMET' stand for?

Accepted Answer

Significant Meteorological Information; an advisory concerning potentially hazardous weather phenomena like severe turbulence, icing, or volcanic ash

Answer

Signal Meteorological Tool

Answer

Significant Moisture Evaluation Testing

Answer

Standard Instrument Ground Meteorological Evaluation

Question 5

Which cloud type is characterized as high-altitude, wispy, and composed entirely of ice crystals?

Accepted Answer

Cirrus

Answer

Stratus

Answer

Cumulus

Answer

Nimbostratus

Question 6

What is a 'Foehn Wind' (or Chinook)?

Accepted Answer

A warm, dry, and often gusty downslope wind that occurs on the leeward (downwind) side of a mountain range

Answer

A freezing, wet wind blowing off an ocean

Answer

A wind that only blows at the equator

Answer

A localized tornado

Question 7

If a drone flies upward into a strong Temperature Inversion layer, what unexpected aerodynamic effect might occur?

Accepted Answer

The sudden encounter with warmer, less dense air can cause a noticeable decrease in lift and motor efficiency

Answer

The drone will freeze instantly

Answer

The drone's lift will double

Answer

The propellers will spin backwards

Question 8

On a sunny afternoon, a pilot flying a drone from a dark asphalt parking lot over a cool lake should anticipate:

Accepted Answer

A strong thermal updraft over the asphalt, followed by sinking air (subsidence) over the cooler water, requiring throttle adjustments to maintain altitude

Answer

Perfectly smooth, uninterrupted flight at all times

Answer

A sudden loss of GPS signal over the water

Answer

The drone's compass reversing its polarity

Question 9

What is the Intertropical Convergence Zone (ITCZ)?

Accepted Answer

A belt of low pressure near the equator where the trade winds of the Northern and Southern Hemispheres meet, characterized by intense convective activity and thunderstorms

Answer

The magnetic boundary between the North and South poles

Answer

The layer of ozone protecting the Earth

Answer

A high-altitude jet stream over Europe

Question 10

In the lower troposphere, standard atmospheric pressure decreases by approximately 1 hPa for every:

Accepted Answer

27 to 30 feet (approx. 8 metres) of altitude gained

Answer

10 feet of altitude gained

Answer

100 feet of altitude gained

Answer

1,000 feet of altitude gained

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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