Tyre Knowledge

What is the primary function of a tyre?

• To provide traction

• To support the vehicle’s weight

• To absorb road shocks

• All of the above

Which part of the tyre is in direct contact with the road?

• Sidewall

• Tread

• Bead

• Shoulder

What does the tyre size designation “205/55 R16” indicate?

• Tyre width, aspect ratio, radial construction, and wheel diameter

• Tyre width, aspect ratio, bias-ply construction, and wheel diameter

• Tyre width, aspect ratio, radial construction, and tyre pressure

• Tyre width, aspect ratio, bias-ply construction, and tyre pressure

What is the purpose of the tyre tread pattern?

• To enhance the appearance of the tyre

• To improve fuel efficiency

• To provide better grip and water dispersion

• To reduce tyre noise

Which of the following is a common tyre pressure for passenger cars?

• 10 psi

• 20 psi

• 30 psi

• 40 psi

What does the “R” in a tyre size designation stand for?

• Radial construction

• Rim size

• Road type

• Rubber compound

What is the main advantage of radial tyres over bias-ply tyres?

• Lower cost

• Better fuel efficiency

• Improved ride comfort and handling

• Longer lifespan

What is the legal minimum tread depth for car tyres in the UK?

• 1.0 mm across the central 3/4 breadth of the tyre, around the whole circumference

• 1.6 mm across the central 3/4 breadth of the tyre, around the whole circumference

• 2.0 mm across the central 3/4 breadth of the tyre, around the whole circumference

• 2.5 mm across the central 3/4 breadth of the tyre, around the whole circumference

Which of the following can cause uneven tyre wear?

• Proper alignment

• Overinflation

• Balanced tyres

• Regular rotation

What is the purpose of wheel balancing?

• To ensure even tyre wear

• To improve fuel efficiency

• To prevent vibrations and improve ride quality

• To increase tyre lifespan