What would you secure with a dog clip?
- A The kingpin release handle
- B The air lines
- C The parking brake
- D The diff-lock
Why this is the answer
When recoupling, you must connect the dog clip to secure the kingpin release handle.
Why the other answers don't fit
- B
- The air lines — Air lines are held by their own couplings.
- C
- The parking brake — The parking brake is held by its own mechanism.
- D
- The diff-lock — The diff-lock is a switch.
Where this comes from
- Driving Goods Vehicles — section 15
Rule numbers link to The Highway Code on gov.uk.
Where this question comes from
The question, its options and the explanation are reproduced word for word from the DVSA revision question bank under licence. The licence requires them to appear unaltered, so we cannot reword them and neither can anyone else — that is why you will meet the same wording on other sites. Everything else on this page is written by Theory Hub: the explanation of why each wrong answer is wrong, the topic guide and the revision notes.
Asked in: Lorry & Bus (LGV/PCV)
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