Question 82 of 120

Why is uncoupling a triples combination generally done in the reverse order from how it was coupled?

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The order does not matter for uncoupling, only for coupling
Reverse order is used only to save time, with no safety benefit
It lets each unit be safely separated and supported, starting with the rearmost trailer
Uncoupling always starts with the lead trailer regardless of the configuration used

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Correct answer to question 82 (Doubles/Triples): It lets each unit be safely separated and supported, starting with the rearmost trailer

Why

Uncoupling in reverse order, generally starting from the rearmost trailer, allows each unit to be safely disconnected and supported one at a time rather than trying to separate multiple connections at once.

Updated: November 2026

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Why is uncoupling a triples combination generally done in the reverse order from how it was coupled?

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