FAA 107 Weather Quiz

The minimum distance from clouds required for a sUAS part 107 operations is

• 500 feet below, 2,000 feet horizontally

• clear of clouds

• 500 feet above, 1,000 feet horizontally

The presence of ice pellets at the surface is evidence that there

• are thunderstorms in the area

• is a temperature inversion with freezing rain at a higher altitude

• has been cold frontal passage

Which weather phenomenon is always associated with a thunderstorm?

• Heavy rain

• Hail

• Lightning

What effect does high-density altitude have on the efficiency of a UA propeller?

• Density altitude does not affect propeller efficiency

• Propeller efficiency is increased

• Propeller efficiency is decreased

What are the characteristics of a moist, unstable air mass?

• A. Turbulence and showery precipitation

• B. Poor visibility and smooth air

• C. Haze and smoke

In which environment is aircraft structural ice most likely to have the accumulation rate?

• Cumulus clouds with below freezing temperatures

• Freezing rain

• Freezing drizzle

One weather phenomenon which will always occur when flying across a front is a change in

• wind direction

• type of precipitation

• stability of the air mass

A stable air mass is most likely to have which characteristic?

• Showery precipitation

• Poor surface visibility

• Turbulent air

What is the expected duration of an individual microburst?

• Two minutes with maximum winds lasting approximately 1 minute

• One microburst may continue for as long as 2 to 4 hours

• Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation

Between 1000Z and 1200Z the visibility at KMEM is forecast to be

• 3 statute miles

• 1/2 statute mile

• 6 statute miles