Weather Quiz

Part 107 require the minimum distance of the sUAS from clouds must be no less than 500 feet below the cloud. 800 - 500 = 300 feet AGL.

Two conditions are necessary for structural icing in flight: 1. The aircraft must be flying through visible water such as rain or cloud droplets, and 2. The temperature at the point where the moisture strikes the aircraft must be 0 degrees C (32 degrees F) or colder.

Local conditions, geological features, and other anomalies can change the wind direction and speed close to the Earth's surface, making it difficult to control and maneuver the sUAS.

The key feature of the cumulus stage is an updraft. Precipitation beginning to fall from the cloudbase is the signal that a downdraft has developed also and the cell has entered the mature stage.Answer (A) is incorrect because the appearance of an anvil top is characteristic of the dissipating stage. Answer (C) is incorrect because the maximum growth rate of the clouds is during the mature stage of a thunderstorm, but it does not signal the beginning of that stage.

Downdrafts characterize the dissipating stage of the thunderstorm cell and the storm dies rapidly.Answer (A) is incorrect because updrafts occur during the cumulus stage. Answer (C) is incorrect because both updrafts and downdrafts occur during the mature stage.