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When uncoupling a triple trailer rig

A The third trailer should be uncoupled first
Explaination
When uncoupling a triple trailer rig, it is important to uncouple the third trailer first. Uncouple the remaining trailers as you would normally uncouple a double. more
B The second trailer should be uncoupled first
C The order of uncoupling is not important
D The heaviest trailer should be uncoupled first