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Vehicle condition

Question 1 of 87

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

Question 2 of 87

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

Question 3 of 87

What would be illegal?

Question 4 of 87

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 5 of 87

What does this warning light on the instrument panel mean?

www.drivingtheorytest.uk - DVSA Driving Theory Test UK Online - What does this warning light on the instrument panel mean? - Low oil pressure

Question 6 of 87

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

Question 7 of 87

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

Question 8 of 87

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

Question 9 of 87

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

Question 10 of 87

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

Question 11 of 87

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

Question 12 of 87

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

Question 13 of 87

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

Question 14 of 87

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

Question 15 of 87

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

Question 16 of 87

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

Question 17 of 87

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 18 of 87

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 19 of 87

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

Question 20 of 87

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

Question 21 of 87

What's the purpose of a preheating device?

www.drivingtheorytest.uk - DVSA Driving Theory Test UK Online - What's the purpose of a preheating device? - To heat the cab

Question 22 of 87

Where does a high-pressure fuel injector deliver fuel?

Question 23 of 87

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

Question 24 of 87

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

Question 25 of 87

What's it advisable to do when you replace a tubeless tyre?

Question 26 of 87

When should you check the oil level in your engine?

Question 27 of 87

When should anti-freeze be used in the cooling system?

Question 28 of 87

What does this warning light on the instrument panel mean?

www.drivingtheorytest.uk - DVSA Driving Theory Test UK Online - What does this warning light on the instrument panel mean? - Low fuel pressure

Question 29 of 87

What does it mean if the ignition warning light comes on while you're driving?

www.drivingtheorytest.uk - DVSA Driving Theory Test UK Online - What does it mean if the ignition warning light comes on while you're driving? - The oil pressure is low

Question 30 of 87

What do the codes shown on the side walls of bus and lorry tyres refer to?

Question 31 of 87

What will happen if you follow a regular vehicle maintenance schedule?

Question 32 of 87

What should you do before changing a wheel on your vehicle?

Question 33 of 87

You've had to change a wheel on your vehicle. When should the wheel nuts be checked again?

Question 34 of 87

How can vehicle breakdowns be reduced?

Question 35 of 87

Why should your engine oil be changed at the recommended intervals?

Question 36 of 87

Where should you park your vehicle before checking the engine oil level?

Question 37 of 87

What could happen if you overfill your engine with oil?

Question 38 of 87

You've stopped on a firm, level surface. What's the first thing you must do before you uncouple the trailer?

Question 39 of 87

When should you check the wheel nuts on your vehicle?

Question 40 of 87

What should you do if thick black smoke is coming from the exhaust of your vehicle?

Question 41 of 87

You hit the kerb at speed. What part of your vehicle should you check for damage?

Question 42 of 87

What's most likely to cause a burst tyre?

Question 43 of 87

When can 'selective' or 'block' gear changing be used?

Question 44 of 87

When would you use 'kickdown' on a vehicle that has automatic transmission?

Question 45 of 87

What's the most likely cause if your steering starts to feel heavy?

Question 46 of 87

Your vehicle suffers a tyre blow-out. How could this create a hazard for other road users?

Question 47 of 87

The Driver and Vehicle Standards Agency (DVSA) and the police carry out spot checks for faulty vehicles. What will happen to the vehicle if serious defects are found?

Question 48 of 87

At a Driver and Vehicle Standards Agency (DVSA) roadside check, your vehicle is found to have serious defects and you may no longer use it. Who will DVSA share this information with?

Question 49 of 87

What could happen if there isn't enough oil in your engine?

Question 50 of 87

While driving, your engine-oil warning light comes on. Why could it be dangerous to continue driving?

Question 51 of 87

Bus and lorry tyres have codes on their side walls. What do these codes refer to?

Question 52 of 87

What's the advantage of energy-saving tyres?

Question 53 of 87

A tyre has been replaced on your vehicle. What precautions should be taken when tightening the wheel nuts?

Question 54 of 87

Why are energy-saving tyres effective?

Question 55 of 87

Where can you get advice to help carry out minor repairs?

Question 56 of 87

Where can you get advice about carrying out repairs to your vehicle?

Question 57 of 87

What could happen if you overfill your engine with oil?

Question 58 of 87

What's the purpose of the oil filter?

Question 59 of 87

Which tool is essential for fitting a road wheel?

Question 60 of 87

What's the most likely reason for a diesel-engined vehicle running erratically in very cold weather?

Question 61 of 87

What do heated fuel lines prevent?

Question 62 of 87

Why should you carry out a daily walk-round check before setting off?

Question 63 of 87

What happens to diesel fuel when it gets hot?

Question 64 of 87

What must vehicle operators provide for their drivers?

Question 65 of 87

On your daily walk-round check, you see that one front tyre is more than 10 years old. What should you do before using the vehicle?

Question 66 of 87

How can you check the age of a tyre fitted to your vehicle?

Question 67 of 87

You're driving a three-axle double-deck bus. Why should you take extra care when using full steering lock?

Question 68 of 87

You're driving a three-axle double-deck bus and have the steering turned onto full lock. What should you do to avoid rear tyre scrub?

Question 69 of 87

You're driving a double-deck bus. What's the minimum depth of tread required over three-quarters of each tyre's width?

Question 70 of 87

What should you do if you notice that your coach's right rear indicator isn't working?

Question 71 of 87

Before each journey, you should check all warning lights. What should you do if a warning light remains lit?

Question 72 of 87

Why should you check your tyres more frequently on a coach with three axles?

Question 73 of 87

Some buses have different-sized wheels on the front and rear. What do you need to be aware of when driving at high speeds on long journeys?

Question 74 of 87

How frequently should a driver carry out a walk-round check?

Question 75 of 87

What should you do before stopping a turbocharged engine?

Question 76 of 87

A passenger tells you they've noticed that a wheel nut is missing from your bus. How often should you check your vehicle's wheel nuts?

Question 77 of 87

What should you do when you park a vehicle that's fitted with a turbocharger?

Question 78 of 87

You're driving at night on a very busy road when your headlights fail. What should you do if the fuse box is on the outside of the bus, on the right-hand side?

Question 79 of 87

Your coach often tows a trailer. How often should you check the trailer tyres for pressure?

Question 80 of 87

The bus you're driving is fitted with automatic transmission. When would you use kickdown?

Question 81 of 87

Your coach is fully laden. What's the most likely reason for the steering feeling heavy?

Question 82 of 87

Why are frequent tyre checks advisable on a tri-axle double-deck vehicle?

www.drivingtheorytest.uk - DVSA Driving Theory Test UK Online - Why are frequent tyre checks advisable on a tri-axle double-deck vehicle? - These tyres are more likely to deflate

Question 83 of 87

When should the driver of a coach wear gloves?

Question 84 of 87

You're driving a six-wheeled double-deck bus. What do you need to know about punctures on the rear tyres?

Question 85 of 87

What should you regularly check on the tyres of your bus?

Question 86 of 87

What will result from having over-inflated tyres?

Question 87 of 87

What should you do before uncoupling your trailer?

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