What can people who live or work in towns and cities do to help reduce urban pollution levels?
- A Drive more quickly
- B Over-rev in a low gear
- C Walk or cycle
- D Drive short journeys
Why this is the answer
Using a vehicle for short journeys means the engine does not have time to reach its normal operating temperature. When an engine is running below its normal operating temperature, it produces increased amounts of pollution. Walking and cycling do not create pollution and have health benefits as well.
Why the other answers don't fit
- A
- Drive more quickly — Faster driving in a town produces more pollution, not less.
- B
- Over-rev in a low gear — High revs produce the most emissions of all.
- D
- Drive short journeys — Short trips never let the engine warm up, which is when it pollutes most.
Where this comes from
- Driving: the essential skills — section 17
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: Car
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