DVSA Vehicle Safety and Maintenance

Question 1

How often should you check your vehicle's tyre pressures?

Accepted Answer

Every month and before long journeys

Answer

Tyre pressures should be checked at least once a month and before any long journey, when the tyres are cold. Incorrect tyre pressure affects handling, braking, fuel consumption, and tyre wear.

Question 2

Your vehicle pulls to one side when braking. What is the most likely cause?

Accepted Answer

Uneven brake pad wear or a sticking brake calliper

Answer

If the vehicle pulls to one side during braking, it usually means the brakes are not being applied evenly. This could be due to worn brake pads on one side, a seized calliper, or contamination of the brake disc or pad.

Question 3

What is the purpose of the catalytic converter in a vehicle's exhaust system?

Accepted Answer

To reduce harmful exhaust emissions

Answer

The catalytic converter converts harmful gases such as carbon monoxide, nitrogen oxides, and unburnt hydrocarbons into less harmful substances like carbon dioxide and water vapour. It is a legal requirement for petrol vehicles.

Question 4

When should you use your rear fog lights?

Accepted Answer

When visibility is seriously reduced below 100 metres

Answer

Rear fog lights should only be used when visibility is seriously reduced, generally below 100 metres. Using them at other times is illegal because they can dazzle drivers behind you and obscure your brake lights.

Question 5

What colour is the engine oil warning light on the dashboard?

Accepted Answer

Red

Answer

The engine oil warning light is red, indicating a serious problem that requires immediate attention. If this light comes on while driving, you should stop as soon as safely possible and check the oil level. Continuing to drive could cause severe engine damage.

DVSA UK Driving Theory Practice Test

DVSA UK Driving Theory Practice Test

DVSA Vehicle Safety and Maintenance