Exam quiz Meteorology - EASA Drone License A2

Question 1

Which meteorological tool uses radio waves to determine the location, intensity, and movement of precipitation?

Accepted Answer

Weather Radar

Answer

Anemometer

Answer

Barometer

Answer

Hygrometer

Question 2

As the temperature of an air mass increases, its capacity to hold invisible water vapour:

Accepted Answer

Increases significantly

Answer

Decreases significantly

Answer

Remains exactly the same

Answer

Causes the air mass to immediately turn into snow

Question 3

What is a 'Microburst'?

Accepted Answer

A sudden, intense, localized downdraft of air associated with a thunderstorm that spreads out violently upon hitting the ground

Answer

A small, localized thermal updraft

Answer

A gentle rain shower without wind

Answer

A minor electrical short circuit in the drone's motors

Question 4

In the Northern Hemisphere, how does the wind flow around a low-pressure system at the surface?

Accepted Answer

Counter-clockwise and spiraling inward

Answer

Clockwise and spiraling outward

Answer

Directly downwards into the centre

Answer

It remains perfectly calm

Question 5

In space weather, what does the 'G-scale' (G1 to G5) measure?

Accepted Answer

The severity of Geomagnetic Storms, with G5 being extreme and highly disruptive to satellite navigation (GNSS/GPS)

Answer

Gravity anomalies

Answer

Gust intensity

Answer

Ground visibility

Question 6

How does the wind gradient affect a drone descending to land in windy conditions?

Accepted Answer

As the drone descends into slower air near the ground, its aerodynamic lift may suddenly decrease, requiring the pilot to apply more throttle to prevent a hard landing

Answer

The drone will experience a sudden increase in wind speed near the ground

Answer

The wind gradient will push the drone upwards

Answer

It causes the drone's compass to spin

Question 7

What is a 'Squall Line'?

Accepted Answer

A narrow band of high winds and severe thunderstorms, often forming just ahead of a fast-moving cold front

Answer

The line marking the boundary of a restricted airspace

Answer

A line of calm weather directly behind a warm front

Answer

The path a drone takes when performing an automatic grid survey

Question 8

How does the Coriolis effect behave at the Earth's equator?

Accepted Answer

It is effectively zero, meaning winds do not get deflected by planetary rotation at the equator

Answer

It is at its absolute maximum strength

Answer

It pulls air directly into space

Answer

It causes water to drain counter-clockwise in sinks

Question 9

If an air mass is pushed up a mountain and its temperature drops below its dew point, what happens?

Accepted Answer

The invisible water vapour condenses into visible water droplets, forming clouds and potentially precipitation (Orographic lifting)

Answer

The air mass instantly becomes a jet stream

Answer

The air becomes perfectly dry and clear

Answer

The air mass catches fire

Question 10

Where on Earth is the 'Coriolis Effect' (which deflects moving air) at its strongest?

Accepted Answer

At the North and South Poles

Answer

At the Equator

Answer

At 45 degrees latitude

Answer

Over the Pacific Ocean exclusively

Question 11

When is 'Thermal Turbulence' generally most intense?

Accepted Answer

On clear, hot summer afternoons when the sun strongly heats the Earth's surface, causing localized columns of warm air to rise rapidly

Answer

During the middle of the night

Answer

During cold winter rainstorms

Answer

When a thick fog layer is present

Question 12

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

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Exosphere

Question 13

What is the primary danger of 'Wind Shear' to a drone during takeoff or landing?

Accepted Answer

A sudden loss of airspeed and lift can cause the drone to stall and crash into the ground before the motors can spool up to compensate

Answer

It drains the battery by creating a vacuum

Answer

It causes the drone's compass to lose north

Answer

It cuts the radio signal from the remote

Question 14

What is the danger of flying a drone in an area with a high 'Kp-index' (e.g., Kp 7 or 8)?

Accepted Answer

Severe geomagnetic storms can disrupt the ionosphere, causing significant GPS positioning errors, compass malfunctions, or total loss of satellite lock

Answer

The drone's battery will drain twice as fast

Answer

It means there is a high probability of a tornado

Answer

The remote controller will overheat

Question 15

A 'Temperature Inversion' in the atmosphere occurs when:

Accepted Answer

The normal decrease of temperature with altitude is reversed, meaning the air gets warmer as you go higher up through the inversion layer

Answer

The temperature remains constant regardless of altitude

Answer

The temperature drops faster than the standard lapse rate

Answer

A cold front turns into a warm front

Question 16

If a METAR states 'LIRF 151250Z 32015KT 9999 FEW030 18/10 Q1012', what is the temperature and dew point?

Accepted Answer

Temperature 18 °C, Dew point 10 °C

Answer

Temperature 32 °C, Dew point 15 °C

Answer

Temperature 99 °C, Dew point 99 °C

Answer

Temperature 10 °C, Dew point 12 °C

Question 17

If you are flying in a valley during a sunny morning, how are the local winds likely moving?

Accepted Answer

Up the slopes (anabatic winds), as the sun heats the mountain sides faster than the valley floor

Answer

Down the slopes into the valley

Answer

In a perfect circle

Answer

They remain completely stagnant

Question 18

What is 'QNH' in altimetry?

Accepted Answer

The local atmospheric pressure reduced to mean sea level; setting this on an altimeter makes it read altitude above sea level (AMSL)

Answer

The atmospheric pressure measured at the exact altitude of the drone

Answer

The standard pressure of 1013.25 hPa

Answer

The altitude above ground level (AGL)

Question 19

What is the difference between a 'Land Breeze' and a 'Sea Breeze'?

Accepted Answer

A sea breeze blows from the water to the land during the day; a land breeze blows from the land to the water at night

Answer

A land breeze brings rain, a sea breeze brings clear skies

Answer

A sea breeze is caused by the moon, a land breeze by the sun

Answer

There is no difference; they both flow in the same direction

Question 20

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 21

In aviation meteorology, 'Wind Shear' is defined as:

Accepted Answer

A sudden, drastic change in wind speed and/or direction over a very short vertical or horizontal distance

Answer

A gradual change in wind direction over several days

Answer

The friction caused by wind hitting the drone's propellers

Answer

A constant, steady breeze from the ocean

Question 22

What is a 'Thermal Inversion'?

Accepted Answer

A weather condition where a layer of warm air sits over a layer of cooler air near the ground, trapping pollutants and causing hazy, low-visibility conditions

Answer

A situation where the drone flips upside down

Answer

A sudden drop in temperature during a hot day

Answer

The reversal of the Earth's magnetic poles

Question 23

What is the standard temperature lapse rate in the troposphere under ISA conditions?

Accepted Answer

It decreases by approximately 2.0 °C per 1,000 feet (or 6.5 °C per 1,000 metres) of altitude gained

Answer

It increases by 1 °C for every 100 metres of altitude

Answer

It remains completely constant up to 30,000 feet

Answer

It drops by exactly 10 °C per 1,000 feet

Question 24

Due to the pressure gradient force, air naturally flows:

Accepted Answer

From areas of high pressure to areas of low pressure

Answer

From areas of low pressure to areas of high pressure

Answer

Directly towards the equator at all times

Answer

Only upwards

Question 25

During the 'Dissipating Stage' of a thunderstorm, what air movement dominates?

Accepted Answer

Downdrafts, as the rain cools the air and cuts off the storm's supply of warm, moist updrafts

Answer

Strong updrafts

Answer

Horizontal winds only

Answer

A perfect vacuum

Question 26

The 'friction layer' (or planetary boundary layer), where surface friction significantly slows the wind and causes turbulence, usually extends from the surface up to about:

Accepted Answer

2,000 to 3,000 feet (approx. 600 to 900 metres)

Answer

50 feet (15 metres)

Answer

30,000 feet

Answer

100,000 feet

Question 27

Which type of cloud is generally associated with steady, continuous, and prolonged precipitation rather than heavy, showery bursts?

Accepted Answer

Nimbostratus

Answer

Cumulonimbus

Answer

Cirrocumulus

Answer

Altocumulus

Question 28

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 29

When wind flows through a narrow mountain valley or a dense group of tall buildings, its speed typically increases. What is this called?

Accepted Answer

The Funneling (or Venturi) Effect

Answer

The Coriolis Effect

Answer

The Thermal Inversion Effect

Answer

The Ground Effect

Question 30

A 'Warm Front' typically brings what kind of weather as it approaches?

Accepted Answer

A gradual lowering and thickening of the cloud ceiling (cirrus to stratus to nimbostratus) accompanied by steady, prolonged precipitation

Answer

Violent, short-lived thunderstorms

Answer

A sudden drop in temperature and clear skies

Answer

High-speed, turbulent downdrafts

Exam simulation Meteorology - EASA Drone License A2

Exam simulation EASA Drone A2 License Meteorology 30 questions on 30 minutes

Exam simulation Meteorology - EASA Drone License A2

Exam simulation EASA Drone A2 License Meteorology 30 questions on 30 minutes

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