Question 400, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license

Prevent any rotation of the oleo strut in the undercarriage shock absorber.
Make the body gears pivot when the nose wheel is turned through more than 20°.
Transform the translational movement of the rudder pedals into the rotational movement of the nose wheel.
Create The Wheel Pitch On Bogie Gears.