HGV and Bus Hazard Perception Test

The lorry and bus hazard perception test has 19 clips with 20 developing hazards, scored out of 100 – you need 67 to pass. Practise free here with original clips seen from a higher cab position, including five scenes written just for lorry and bus drivers.

  • 19 clips
  • 20 hazards
  • Max 100
  • Pass 67

How the lorry and bus test is different

Hazard perception for large vehicles works in the same way as the car test, but it's longer and the pass mark is set out of 100. It forms part of the Driver CPC part 1 theory test, often called part 1b.

  • 19clips
  • 20developing hazards
  • 100points available
  • 67to pass
  • Booked separately. The multiple-choice part (100 questions, 85 to pass) and hazard perception are booked as two tests, but you can take them on the same day.
  • Two-year rule. You must pass both parts within 2 years of each other to get your theory test certificate.
  • Retakes. If you fail, you can book again straight away but can't sit the test for 3 clear working days.
  • Cost. The hazard perception part costs £11 on GOV.UK.

Full details are on GOV.UK's Driver CPC part 1 theory test page.

Our 19 practice clips

The first 14 clips are our car scenes re-drawn from a higher cab eye height, so you get used to seeing further ahead but having less view close to the vehicle. Clips 15 to 19 are new scenes built around situations that matter most when you drive something big:

  1. Left turn at a junction with a cyclist on your nearside.
  2. Narrow road where an oncoming bus means you need to stop and let it through.
  3. Motorway where a car cuts into the gap you've left in front.
  4. Roadworks with a lane closure and a worker stepping out.
  5. Town centre lights with pedestrians crossing close in front of the cab.

Scoring is the same as the car test: up to 5 points per hazard, more for an earlier click, and 0 for a clip if you click continuously or in a pattern. You'll get a per-clip timeline at the end showing where the window was and when you clicked.

Think like a large vehicle driver

The clues are the same as in any hazard perception clip, but the stakes and the space you need are bigger. Keep these points from The Highway Code in mind as you watch:

  • You need more room to stop. Large vehicles need a greater distance to stop than cars, and in a tunnel a large vehicle should leave a four-second gap (Highway Code rule 126).
  • Watch the nearside. Cyclists and motorcyclists can be hard to see at junctions, especially when they come up on the inside (Highway Code rule 211).
  • Turning across cyclists. Don't turn at a junction if it would make a cyclist going straight ahead stop or swerve (Highway Code rule H3).
  • Pedestrians close to the cab. At lights and crossings, people can be in an area you can't easily see from a high seat. Look for them before you move off.

Our hazard perception tips guide explains the scoring window and safe clicking in more detail.

Please note: original practice questions and clips based on The Highway Code. Not the real test questions or DVSA clips. MockTheory is not affiliated with or endorsed by the DVSA.

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Frequently asked questions

What is the pass mark for the HGV hazard perception test?

The pass mark for lorry and bus drivers is 67 out of 100. There are 19 clips with 20 developing hazards, each worth up to 5 points.

How many clips are in the lorry and bus hazard perception test?

There are 19 clips. Each has at least one developing hazard, and one clip has two, giving 20 hazards in total.

Do I have to take both parts of the HGV theory test on the same day?

No. The multiple-choice and hazard perception parts are booked separately and can be taken on different days, but you must pass both within 2 years of each other.

If I fail hazard perception, do I have to retake the multiple-choice part?

No. Because the two parts are separate tests, you only need to rebook the part you failed. You must wait at least 3 clear working days before taking it again.

How much does the HGV hazard perception test cost?

The hazard perception part of the lorry and bus theory test costs £11 when you book on GOV.UK. The multiple-choice part costs £26.

Is the bus (PCV) hazard perception test the same as the lorry one?

Yes. Lorry and bus drivers take the same format: 19 clips, 20 hazards and a pass mark of 67 out of 100.

Original practice questions based on The Highway Code (Open Government Licence v3.0). Not the real test questions. MockTheory is not affiliated with or endorsed by the DVSA.

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