Meteorology - EASA Drone License A2

Question 1

In a METAR report, what does the code 'DZ' mean?

Accepted Answer

Drizzle (very fine, closely spaced water droplets falling from a cloud)

Answer

Dust storm

Answer

Danger Zone

Answer

Dense Fog

Question 2

Which of the following describes a Cumulonimbus (Cb) cloud?

Accepted Answer

A massive, towering convective cloud associated with severe thunderstorms, heavy rain, lightning, hail, and extreme turbulence

Answer

A thin, wispy high-altitude cloud made of ice crystals

Answer

A low, flat, grey cloud layer that produces light drizzle

Answer

A small, fluffy 'fair weather' cloud

Question 3

What is the primary cause of 'Mechanical Turbulence'?

Accepted Answer

Wind flowing over irregular terrain, buildings, or trees, causing the air to break into complex eddies and swirls

Answer

The drone's motors spinning out of sync

Answer

The sun heating the ground unevenly

Answer

Two air masses of different temperatures colliding

Question 4

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 5

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 6

How does 'Precipitation-Induced Fog' (or Frontal Fog) typically form?

Accepted Answer

When relatively warm rain falls through a cooler layer of air near the ground, evapourating and saturating the cool air until fog forms

Answer

By the rapid freezing of a lake

Answer

By high winds stirring up dust

Answer

By pollution trapped in a city

Question 7

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 8

What causes 'Steam Fog'?

Accepted Answer

Very cold, dry air moving over much warmer water, causing rapid evapouration and immediate condensation

Answer

Warm air moving over a cold snowpack

Answer

Pollution trapped in a city by an inversion layer

Answer

A sudden drop in barometric pressure

Question 9

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 10

During which stage of a thunderstorm is the iconic 'anvil' top most likely to form?

Accepted Answer

The Mature stage, when the updraft hits the tropopause and spreads out horizontally

Answer

The Cumulus stage

Answer

The Dissipating stage

Answer

Before the cloud even begins to form

Exam questions Meteorology - EASA Drone License A2

EASA Drone License A2: Meteorology 10 Questions no time limit