Theory Hub UK Theory Test

When should your lorry coupling system (fifth wheel) be checked and lubricated?

Why this is the answer

Maintenance of the fifth wheel should be carried out regularly, ideally monthly or every 10,000 km.

Why the other answers don't fit

A
Only prior to an MOT test — An MOT is a test, not a maintenance schedule.
B
Every 6 months — Six months is far too long between greasings on a coupling in daily use.
C
Yearly — Yearly is longer still.

Where this comes from

  • Driving Goods Vehicles — section 11

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.

More about our sources and licence

Asked in: Lorry & Bus (LGV/PCV)

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