How hard is a theory test in the UK 2025?

We've analyzed responses from hundreds of learners on Theorypass to identify the most challenging questions. Put simply, without studying, your odds to answer all questions correctly are just 1 in 3,800. This could explain the disappointing national theory test pass rate of 46.1%.

Is 46 out of 50 good on theory test 2025?

What is the UK theory test pass mark? The theory test pass mark is 86%. This means you need to score 43 out of 50 multiple-choice questions to pass this section of the test. You have 57 minutes to answer all of the questions in the multiple-choice test.

What does a UK theory test 2025 consist of?

The theory test for car and motorcycle drivers is made up of two parts taken at the same time - multiple choice and hazard perception. You must pass both parts of the test to get a test certificate.

Is the theory test changing in 2025?

The Driver Theory Test has been revised and the updated version went live on the 1st of July 2024. The changes made are to enhance your experience with new and improved images, updated and more relevant questions surrounding road safety and legislation.

Dashboard
LGV/HGV
Study Questions
Vehicle condition

Motorbike

LGV-HGV

BUS-PCV

Vehicle condition

Question 1 of 81

What's the main reason for cleaning your wheels and tyres when you leave a building site?

To keep the tyres in good condition
To prevent the tyres from damaging the road surface
To reduce air leakage from the tyre valves
To stop mud dropping onto the road

Explanation:

"If your wheels leave mud on the road, you must arrange for it to be cleared. A slippery, muddy surface could cause danger to other road users."

Vehicle condition

Question 1 of 81

What's the main reason for cleaning your wheels and tyres when you leave a building site?

Question 2 of 81

Your vehicle has double rear wheels. Why should you check them before leaving a building site?

Question 3 of 81

What should you check before you drive off a muddy building site onto the road?

Question 4 of 81

You're driving a lorry along a motorway. You notice that you're losing tread from one of your tyres. What should you do?

Question 5 of 81

What's the minimum depth of tread required over three-quarters of the breadth of a lorry tyre?

Question 6 of 81

What's the final thing you should do after recoupling a trailer?

Question 7 of 81

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

Question 8 of 81

You're driving a new articulated lorry that's fully laden. You notice that the steering feels heavy. What's the most likely reason?

Question 9 of 81

When should wheel nuts be checked?

Question 10 of 81

What would you secure with a dog clip?

Question 11 of 81

How frequently should the components of a fifth-wheel coupling be inspected?

Question 12 of 81

What should you check for wear or damage on a drawbar unit?

Question 13 of 81

What's the fifth-wheel coupling used for?

Question 14 of 81

How often should the components of the fifth-wheel coupling be inspected?

Question 15 of 81

You're uncoupling a trailer. What must you do before disconnecting any of the air lines?

Question 16 of 81

You're checking your vehicle's tyres before starting a long motorway journey. What check should be made on each tyre?

Question 17 of 81

What should you do if you notice that two wheel nuts are missing from one of the wheels on your vehicle?

Question 18 of 81

What would be illegal?

Question 19 of 81

In very cold weather, moisture can freeze in your vehicle's air storage tanks. What can you do to help prevent this from happening?

Question 20 of 81

What does this warning light on the instrument panel mean?

Question 21 of 81

You're driving along a motorway. What should you do if the air-pressure warning device starts to operate?

Question 22 of 81

Your vehicle has broken down at night on a two-way road. How should you try to leave the vehicle?

Question 23 of 81

What should you do if your power-assisted steering fails suddenly?

Question 24 of 81

Your steering suddenly becomes heavy to turn. What could make this happen?

Question 25 of 81

What should you do if the brake pedal becomes hard to press?

Question 26 of 81

Why do air tanks on brake systems need to be drained?

Question 27 of 81

You're checking your vehicle. What should you do if you discover an air leak in the braking system?

Question 28 of 81

A loud buzzer sounds in your vehicle. What's this most likely to indicate?

Question 29 of 81

What proportion of the width of a tyre must have at least the legal minimum depth of tread?

Question 30 of 81

You discover that one of your rear brake-light bulbs has failed. How soon should it be replaced?

Question 31 of 81

What can you add to diesel fuel to prevent it from becoming less effective at low temperatures?

Question 32 of 81

You're about to start a long journey midway through the day. What should you do if you notice that the sidelights work but the headlights are faulty?

Question 33 of 81

Before starting a journey, you want to check your brake-system warning lights. What can you do when these aren't operated by the ignition switch?

Question 34 of 81

On motorways, you're usually driving at higher speeds for long distances. What effect can this have on your tyres?

Question 35 of 81

You notice that one of your tyres has a bulge in the side wall. What will happen if you drive the vehicle?

Question 36 of 81

What's the purpose of a preheating device?

Question 37 of 81

Where does a high-pressure fuel injector deliver fuel?

Question 38 of 81

Why is it important to avoid overfilling the engine with oil?

Question 39 of 81

Why should you use an approved coolant solution in your engine's cooling system?

Question 40 of 81