Question 146, Operational Procedures - ATPL - Airline Transport Pilot license

Starts as soon as the aeroplane commences rolling and stops as soon as it has come to a stop at landing.
Starts at rotation and stops as soon as the aeroplane's wheels touch the ground.
Starts when pulling out the drag devices and stops when retracting the drag devices.
Starts when the aeroplane reaches a height of 35 ft above the ground and stops when it crosses this height before landing.