Tyres and wheels

It is an offence to use a tyre with lumps & bulges in the tread

• true
• false

Lead wheel weights should be disposed of in the correct manner they are toxic

• True
• False

You can use a rubber plug patch on a tyre if the hole diameter is above 6mm

• True
• False

Under British Standards before repairing a tyre it should be checked for.

• Air pressure
• Valve position
• Aging and deterioration of the rubber.
• Correct sidewall size markings.

A tyre has a side wall marking of 205/55/R16 this means the tyre.

• Has an effective diameter ratio of 205 millimetres.
• Is fitted to a 16 inch diameter wheel.
• Has an effective diameter of55 millimetres.
• Has an effective diameter of 16 inches.

A British standards repairable area of a of 205mm section width is

• 70% of the central section of the tread
• 60% of the central section of the tread
• 75% of the central section of the tread
• 65% of the central section of the tread

What should be done to each wheel nut when re-fitting Road wheels.

• Tighten and cover with grease to prevent rust
• Tighten using a correctly set torque wrench.
• Tighten using a socket and air wrench
• Tighten in a clock wise sequence.

An Asymetric tyre can be fitted any way round on its rim

• True
• False

Incorrectly balanced wheels may cause

• The wheel alignment to change
• Wear on the inner edge of the tyre
• Wear on the outer edge of the tyre
• The steering wheel to vibrate

tyre repairs can be carried out by anyone if they us the right tools

• true
• false