Theory test topic
Tyres, brakes and ABS
Technical checks every driver should know: tread, pressure and how ABS behaves.
91 questions on this topic in our bank
The rules in brief
- 1
1.6 mm tread
Car tyres need a tread depth of at least 1.6 mm.
Source: RSA, Rules of the Road
- 2
Check when cold
Check tyre pressures when the tyres are cold, including the spare.
Source: RSA, Rules of the Road
- 3
ABS
In an emergency stop with ABS, brake firmly and keep steering. Do not pump the pedal.
Source: RSA, Rules of the Road
- 4
Warning signs
Pulling to one side or a spongy pedal can mean a brake fault. Get it checked.
Source: RSA, Rules of the Road
Try 8 sample questions
Tap an answer to see if you are right and read the explanation.
Score: 0/8
Question 1 of 8
In general, how often should a driver check the tyre pressure of a vehicle?
Explanation: Drivers have a legal responsibility to make sure that their vehicle is roadworthy. To do this, they should carry out regular, weekly and periodic checks, including a weekly tyre pressure check. Incorrectly inflated tyres may cause vehicle instability, uneven tyre wear and longer stopping distances.
Question 2 of 8
What should a driver do to secure the vehicle before leaving it?
Explanation: Before you leave your vehicle, apply the parking brake and switch off the ignition. Check to make sure that you can open the door safely without endangering others, and alight when it is safe to do so.
Question 3 of 8
What is the main reason for maintaining the correct tyre pressures?
Explanation: The vehicle manufacturer specifies the pressure to which tyres on a vehicle should be inflated. This is the pressure that gives the best performance in road holding, efficient braking and fuel consumption. Some manufacturers specify different pressures for front and rear tyres.
Question 4 of 8
What can cause a vehicle to skid?
Explanation: Heavy braking can cause a vehicle to skid, particularly if the road surface is wet or uneven, or if the tyres are worn or incorrectly inflated. Read the road well ahead and try to avoid heavy braking, particularly in wet or slippery conditions.
Question 5 of 8
With regard to tyres, what should a driver do before starting a long journey?
Explanation: It is important to check the tyre pressure before starting a long journey as incorrect air pressure can adversely affect many of the vehicles systems, including brakes, steering, suspension and fuel consumption. Tyres should always be inflated according to the vehicle manufacturers guidelines, information on which can be found in the vehicle handbook.
Question 6 of 8
What effect does a wet road surface have on a vehicle's braking ability?
Explanation: When it is wet, your tyres do not grip the road surface as well as when it is dry and your stopping distance is increased. For these reasons you should slow down during or after rain and keep a greater distance from the vehicle in front.
Question 7 of 8
What should a driver do when driving in slippery road conditions?
Explanation: When driving in slippery road conditions, drivers should be particularly smooth and gradual in the way they accelerate and brake. This will help to avoid skidding or slipping and helps to maintain control of the vehicle.
Question 8 of 8
Under what circumstances could both cross-ply and radial tyres be fitted to a vehicle?
Explanation: In general, you should fit the same type of tyres all round the vehicle. However if you need to fit a mix of cross-ply and radials, the tyres on any axle should be of the same type.
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