Question id 154 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

They can only be used for anti-icing.
They are widely used on transport aircraft because they require very little maintenance.
The inflatable boots are arranged perpendicular to the leading edge.
They are used as a de-icing system, not as a continuous anti-icing system.

Training tests and timed exam simulations ATPL - Airline Transport Pilot license