RPC Weather & Micrometeorology for Drone Operations 3

Question 1

A temperature inversion aloft often creates which flying condition that directly affects drone safety?

Accepted Answer

A stable layer that traps pollution and reduces visibility

Answer

Temperature inversions trap moisture and pollutants below the inversion base, often resulting in reduced visibility, haze, or smog.

Question 2

Which cloud type is most closely associated with severe turbulence and should prompt a drone pilot to postpone operations?

Accepted Answer

Cumulonimbus

Answer

Cumulonimbus clouds are associated with thunderstorms, lightning, severe turbulence, microbursts, and heavy precipitation—all hazardous to drone operations.

Question 3

The dew point spread (temperature minus dew point) is 2°F. This indicates:

Accepted Answer

Air that is nearly saturated, with high fog or low cloud risk

Answer

A small dew point spread means the air is close to saturation, greatly increasing the likelihood of fog or low cloud formation.

Question 4

Mechanical turbulence near the surface is most likely to occur when:

Accepted Answer

Strong winds flow over irregular terrain or man-made structures

Answer

Wind flowing over buildings, trees, hills, and other surface obstacles creates turbulent eddies that can destabilize a drone, especially at low altitudes.

Question 5

A METAR report shows the wind as '00000KT'. What does this mean for a drone pilot?

Accepted Answer

Winds are calm

Answer

'00000KT' in a METAR denotes calm (no wind), which is favorable for stable drone flight but may still require checking for localized thermal activity.

(RPC) Remote Pilot Certificate Practice Test

(RPC) Remote Pilot Certificate Practice Test

RPC Weather & Micrometeorology for Drone Operations 3