A2 CofC Meteorology for UAS Operations 2

Question 1

What type of weather front typically brings sudden changes in wind direction and speed that could affect drone operations?

Accepted Answer

A cold front with rapid weather changes including gusting winds and possible thunderstorms

Answer

A warm front with gradual changes

Answer

A stationary front with no wind changes

Answer

An occluded front which only affects high-altitude weather

Question 2

What is wind shear and why is it dangerous for drone operations?

Accepted Answer

A sudden change in wind speed and/or direction over a short distance, which can cause loss of control

Answer

A steady increase in wind speed over time

Answer

The difference between wind speed at ground level and at altitude — it has no effect on drones

Answer

A type of wind that only occurs over water

Question 3

During which season are UK drone pilots most likely to encounter reduced visibility due to radiation fog?

Accepted Answer

Autumn and winter

Answer

Summer

Answer

Spring

Answer

Fog occurs equally in all seasons

Question 4

How does flying in rain affect drone performance and safety?

Accepted Answer

Rain can affect GPS signal, reduce visibility, add weight to the drone, and cause electrical damage to non-waterproof components

Answer

Modern drones are fully waterproof so rain has no effect

Answer

Rain only affects the camera image quality

Answer

Rain improves cooling and extends flight time

Question 5

What is a METAR and how can it be useful for drone pilots planning a flight?

Accepted Answer

A coded aviation weather report for a specific aerodrome, providing current conditions including wind, visibility, cloud base, and temperature

Answer

A type of drone maintenance report

Answer

A forecast for weather 24 hours ahead

Answer

A measurement of electromagnetic interference

Question 6

At what visibility level should a drone pilot seriously consider cancelling or postponing an Open category flight?

Accepted Answer

When visibility is reducing and the pilot can no longer confidently maintain VLOS with the drone at its intended operating distance

Answer

Below 10 km

Answer

Below 5 km

Answer

Below 1 km