Theory Hub UK Theory Test

What should you do if your trailer starts to swerve or snake?

Why this is the answer

If your trailer starts to swerve or snake, reduce speed gently to regain control. Do not accelerate or brake harshly.

Why the other answers don't fit

B
Brake firmly — Firm braking makes the trailer push harder on the back of the car.
C
Increase your speed — Accelerating out of a snake is a myth that makes it worse.
D
Maintain a constant speed — Holding a constant speed lets the swing build rather than die away.

Where this comes from

  • Driving: the essential skills — section 19
  • The Highway Code — rule 98
  • LTD — section 1
  • NSD

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: Driving Instructor (ADI Part 1)

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