Question 106 of 120

What hazard should a driver be aware of regarding the extra coupling points in a doubles or triples combination during an inspection stop along the road?

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Extra coupling points reduce the overall risk of separation compared to a single trailer since more points are assumed to share the load more safely
Coupling points never need checking once the trip has started
A failed coupling on any unit could allow a trailer to separate, which is a hazard to check for at every stop
Only the initial coupling at departure matters, not later checks

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Correct answer to question 106 (Doubles/Triples): A failed coupling on any unit could allow a trailer to separate, which is a hazard to check for at every stop

Why

Each additional coupling point is another place a failure could occur, so periodically checking these connections during stops helps catch a developing problem before it leads to a trailer separating.

Updated: November 2026

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What hazard should a driver be aware of regarding the extra coupling points in a doubles or triples combination during an inspection stop along the road?

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