Practice question

When uncoupling a semi-trailer from a tractor, what is the correct sequence of steps for the landing gear?

Lower the landing gear in low gear until it firmly contacts the ground, give it a few extra turns to lift some weight off the fifth wheel, and stow the crank handle
Leave the landing gear raised 30 cm off the ground and pull the tractor away
Lower the landing gear only after driving the tractor 5 metres forward
Landing gear should never touch the ground during uncoupling

Answer: A — Lower the landing gear in low gear until it firmly contacts the ground, give it a few extra turns to lift some weight off the fifth wheel, and stow the crank handle

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