Question id 376 - Meteorology - EASA Drone Quiz A2

Fly immediately so the spinning action shakes the frost off
Turn the motors on full throttle while holding the drone down
Ignore it; frost is too thin to affect a drone
Thoroughly clean and dry the propellers before flight; even a thin layer of frost disrupts the airfoil's smooth surface, drastically reducing lift and increasing drag

Training tests and timed exam simulations EASA Drone Quiz A2