Question 5 - Airspace Classification - FAA Part 107 Drone Quiz

Airspace Classification - The CAUTION box denotes what hazard to aircraft?
Unmarked blimp hangars at 300 feet MSL.
Unmarked balloon on cable to 3,008 feet MSL.
Unmarked balloon on cable to 3,008 feet AGL.

Training tests and timed exam simulations FAA Part 107 Drone Quiz