Revision question · Vehicle loading

What must you check first when uncoupling or recoupling your trailer?

Revision material from the imported DVSA bank includes source-checked Lanekind learning corrections. These corrections are not newly issued official examination questions, and practice does not reproduce a live test paper.

Answer options

The lights are working

The tilt-cab mechanism is secure

The trailer brake is applied

The air lines are safely stowed

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The trailer brake is appliedThis was the right answer

Check that the trailer parking brake is applied before the coupling or uncoupling operation. Use firm level ground and follow the complete vehicle-specific procedure, including tractor parking-brake use, support legs, connection checks and line handling.

Reviewed reading for this question

Inspect the fifth wheel before the controlled tug testReviewed guidance summary · The safety clip and visual fifth-wheel inspection precede the controlled tug; the trailer parking brake must already be applied.

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