Great Britain Theory Test Coach
Vehicle safety and loadingQuestion 361 of 424

What extra device MUST a trailer have besides its main coupling?

  1. A second spare wheel
  2. A secondary coupling, such as a safety chain
  3. A set of warning cones
  4. A speed limiter
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Correct answer: A secondary coupling, such as a safety chain

A trailer needs a second link to the car, such as a safety chain, in case the main coupling fails.

Source: The Highway Code (Department for Transport, GOV.UK), Rules for drivers and motorcyclists (89 to 102), Rule 98

Practice vehicle safety and loading

Questions last reviewed: 18 October 2026