Traction, Tyres and Brakes — DGT theory test questions

Traction, Tyres and Brakes is one of the topics tested on the official Spanish DGT theory exam. Work through the questions below in English — each one shows the correct answer and a clear explanation of the rule behind it — then take a full topic test to check you are ready.

38 questions

• A red dashboard light indicating excessive engine temperature requires you to…
• Tyre pressure should be checked…
• If a tyre bursts at high speed, the correct reaction is…
• A red oil warning light on the dashboard means…
• The ABS system is used to…
• Tyres with tread depth below the legal minimum are…
• What is a vehicle's traction (grip)?
• Which of the following factors reduces tyre grip?
• What is aquaplaning?
• How is aquaplaning prevented?
• To drive on snow or ice, which measure improves grip?
• A vehicle wheel is made up of:
• What is the legal minimum tread depth of the contact band on a passenger car?
• For safety, at what tread depth is it recommended to replace tyres, especially in wet conditions?
• What is the purpose of the grooves in the tread pattern?
• How often and in what state should tyre pressure be checked?
• What is a consequence of driving with pressure lower than recommended?
• What effect does pressure higher than recommended have on tyres?
• Pronounced wear on both edges (shoulders) of the tyre usually indicates:
• When replacing tyres, what rule should be followed?
• Even if they appear to be in good condition, how often is it recommended to replace tyres due to ageing?
• If a tyre blows out while you are driving, what should you do?
• With a space-saver (temporary) spare wheel, what is the usual driving limit?
• What does wheel balancing consist of?
• Vibration, noise, and abnormal tyre wear can indicate:
• What is the function of the service brake?
• What is the parking brake (handbrake) used for?
• In an emergency stop with a vehicle fitted with ABS, you should:
• What does the anti-lock braking system (ABS) achieve during an emergency stop?
• What is engine braking and when is it recommended?
• What is brake fade?
• How is brake fade prevented on a long descent?
• What does the autonomous emergency braking (AEB) system do?
• In the event of a total service-brake failure, what is the correct action?
• If the brake pedal sinks to the floor, the most likely cause is:
• A soft or spongy brake pedal usually indicates:
• What effect does worn suspension have on braking?
• Which of the following is a sign of worn suspension?