What's the maximum authorised mass (MAM) of a category B zero emissions vehicle with an electric or hydrogen-powered engine?
- A 3 tonnes
- B 3.5 tonnes
- C 4.25 tonnes
- D 7.5 tonnes
Why this is the answer
Due to the additional battery weight, you can drive an electric or hydrogen-powered zero emissions vehicle up to a MAM of 4.25 tonnes on a category B licence.
Why the other answers don't fit
- A
- 3 tonnes — Three tonnes is below even the ordinary category limit.
- B
- 3.5 tonnes — 3.5 tonnes is the figure for a conventional vehicle.
- D
- 7.5 tonnes — 7.5 tonnes belongs to category C1.
Where this comes from
- Driving: the essential skills — section 2
- LTD — section 3
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: Driving Instructor (ADI Part 1)
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