Exam quiz Meteorology - EASA Drone License A2

Question 1

What characterizes the 'Mature Stage' of a thunderstorm?

Accepted Answer

The presence of both strong updrafts and downdrafts, heavy rain, lightning, and potentially hail

Answer

Only gentle updrafts forming a white, fluffy cloud

Answer

The storm cloud completely evapourating into clear air

Answer

A steady, light drizzle with no turbulence

Question 2

In a METAR report, what does the weather code 'SN' indicate?

Accepted Answer

Snow

Answer

Sandstorm

Answer

Squall line

Answer

Smoke

Question 3

Which cloud prefix indicates a 'Middle Cloud' (base typically between 6,500 and 20,000 ft)?

Accepted Answer

Alto- (e.g., Altostratus, Altocumulus)

Answer

Cirro-

Answer

Nimbo-

Answer

Strato-

Question 4

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

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Exosphere

Question 5

What does a 'Wind Rose' on a meteorological map or airport chart display?

Accepted Answer

A graphical representation showing the frequency and speed of winds blowing from different directions for a specific location

Answer

The exact location of flowers near the runway

Answer

The temperature gradient of the area

Answer

The magnetic deviation of the Earth

Question 6

In aviation, what does 'RVR' stand for?

Accepted Answer

Runway Visual Range; the horizontal distance a pilot on the centre line of a runway can see the runway surface markings or lights

Answer

Radar Vector Routing

Answer

Relative Velocity Ratio

Answer

Rapid Vertical Rise

Question 7

What atmospheric mechanism typically causes a 'sea breeze' during the daytime?

Accepted Answer

The land heating up faster than the sea, causing air to rise over land and drawing cooler air in from over the water

Answer

The ocean cooling down faster than the land

Answer

The gravitational pull of the moon on the ocean

Answer

High pressure systems stalling over mountain ranges

Question 8

In a METAR, what does the code 'CB' appended to a cloud group (e.g., SCT030CB) indicate?

Accepted Answer

Cumulonimbus clouds, warning the pilot of potential thunderstorms, severe turbulence, and lightning

Answer

Clear Blue sky

Answer

Cirrocumulus Bands

Answer

Cloud Base

Question 9

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 10

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 11

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 12

What is 'Altimeter Setting'?

Accepted Answer

The value to which the barometric altimeter is calibrated to indicate a specific altitude (e.g., QNH for altitude above sea level)

Answer

The color of the altimeter dial

Answer

The GPS coordinates of the drone

Answer

The physical placement of the sensor inside the drone

Question 13

A 'Maritime Tropical' (mT) air mass is generally characterized by being:

Accepted Answer

Warm and moist, often bringing unstable weather and thunderstorms when forced to rise

Answer

Cold and dry

Answer

Hot and very dry

Answer

Freezing cold and wet

Question 14

The passage of a fast-moving cold front is typically marked by which immediate weather changes?

Accepted Answer

A sharp drop in temperature, a sudden shift in wind direction, and a rapid drop followed by a sharp rise in atmospheric pressure

Answer

A gradual warming, clear skies, and a drop in pressure

Answer

No change in wind, but thick fog rolls in

Answer

A sudden increase in humidity without any rain

Question 15

In meteorology, 'Convection' refers to:

Accepted Answer

The vertical transport of heat in the atmosphere, often causing warm, less dense air to rise and form thermals or cumulus clouds

Answer

The horizontal movement of air across the surface

Answer

The freezing of supercooled water droplets in a cloud

Answer

The deflection of wind by the Earth's rotation

Question 16

According to the International Standard Atmosphere (ISA), what is the standard temperature at Mean Sea Level?

Accepted Answer

15 °C

Answer

0 °C

Answer

10 °C

Answer

20 °C

Question 17

In meteorology, a 'Cold Front' is defined as:

Accepted Answer

The leading edge of a cooler mass of air replacing at ground level a warmer mass of air

Answer

A stationary cloud layer in winter

Answer

The area where a warm air mass overrides a cold air mass

Answer

A sudden drop in temperature during the night

Question 18

In a TAF, what does 'PROB30' mean?

Accepted Answer

There is a 30% probability of the forecasted weather phenomena occurring

Answer

The wind speed will definitely be 30 knots

Answer

Visibility will be 30 metres

Answer

The temperature will drop by 30 degrees

Question 19

What is the primary characteristic of an 'Unstable' atmosphere?

Accepted Answer

Air parcels forced upwards continue to rise because they remain warmer than the surrounding air, leading to vertical cloud development (cumulus) and turbulence

Answer

Thick fog lasting all day

Answer

Continuous, smooth wind from one direction

Answer

No clouds ever form

Question 20

What is the fundamental cause of global atmospheric circulation and wind?

Accepted Answer

Uneven heating of the Earth's surface by the sun, leading to pressure differences

Answer

The gravitational pull of the ocean tides

Answer

The rotation of the moon around the Earth

Answer

Magnetic anomalies at the North and South poles

Question 21

What is the 'Urban Heat Island' effect?

Accepted Answer

The phenomenon where urban areas are significantly warmer than surrounding rural areas due to human activities, concrete/asphalt absorbing heat, and lack of vegetation, creating localized thermals and altered wind patterns

Answer

Cities generating their own magnetic fields

Answer

A tropical island located in the middle of a large city

Answer

The fog that forms exclusively over skyscrapers

Question 22

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 23

What is a 'Gust' in wind terminology?

Accepted Answer

A sudden, brief increase in the speed of the wind, usually lasting less than 20 seconds

Answer

A steady breeze lasting more than an hour

Answer

A wind that blows strictly from the north

Answer

A wind that brings snow

Question 24

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 25

How does 'Frontal Fog' typically form?

Accepted Answer

When warm rain falls through a layer of colder air near the ground, evapourating and raising the humidity of the cold air to saturation

Answer

By the sudden cooling of the ground on a clear night

Answer

By wind blowing humid air up a mountain slope

Answer

By industrial pollution mixing with snow

Question 26

A 'Continental Tropical' (cT) air mass is typically:

Accepted Answer

Hot and dry, often originating over desert regions

Answer

Cold and moist

Answer

Warm and extremely humid

Answer

Freezing and dry

Question 27

On a synoptic weather chart, what do closely spaced isobars indicate?

Accepted Answer

A strong pressure gradient, which results in high wind speeds

Answer

A weak pressure gradient, resulting in calm winds

Answer

An area of heavy snowfall

Answer

A region completely free of turbulence

Question 28

How is 'Upslope Fog' formed?

Accepted Answer

When moist, stable air is forced up a sloping landmass (like a mountain) by the wind, cooling adiabatically until it reaches its dew point

Answer

By the sun heating a wet runway

Answer

By thunderstorms evapourating before hitting the ground

Answer

By high winds at altitudes above 20,000 ft

Question 29

While flying in VLOS, if your drone is suddenly and violently pushed upwards without any pilot input, what is the most likely meteorological cause?

Accepted Answer

The drone has been caught in a strong convective thermal updraft or the updraft of a developing cumulus cloud

Answer

The drone has entered a vacuum

Answer

The GPS signal is causing the drone to climb

Answer

The battery voltage has suddenly doubled

Question 30

At the end of a METAR report, the code 'NOSIG' implies:

Accepted Answer

No Significant change in the weather conditions is expected in the next 2 hours

Answer

No Signal received from the weather station

Answer

No Significant clouds below 10,000 feet

Answer

Not Safe for IFR Gliding

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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