Question id 12 - Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Prevent damage to the system when the helicopter is parked in high winds.
Act as a stop in case of vibration of the controls.
Bring the main and tail rotors to rest as soon as possible after shut-down.
Restrict the movement of the controls within the correct range.

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