The world of car tyres is awash with technical terms. You don’t need to know them but they sometimes come in useful. So try answering the following questions, each of which has only one correct answer. The answers are at the foot of the list and for those planning to scroll down and cheat - we’ll know what you did!
1: What is BS AU159f?
A: The British Standard for puncture repairs to car tyres.
B: The British Standard for puncture repairs to Australian car tyres.
C: A code to access holiday discount vouchers on the Internet.
2: What do the initials RWL stand for?
A: Reprogrammable Warning Lights.
B: Right Wheel Latitude.
C: Raised White Letters
3: What is an aspect ratio?
A: The number of attacks per bird experienced if you bend over in a chicken run.
B: The ratio of a car tyre’s height to its width expressed as a percentage.
C: The ratio of tyre pressure (in lbs per sq. in.) to tyre life (in miles).
4: What is a car tyre’s bead for?
A: Holding it on the wheel rim.
B: Keeping it in balance.
C: Threading on a string.
5: What is a butyl liner?
A: A rubber cruise ship.
B: A fine layer in a tyre that prevents sudden deflation if a puncture occurs.
C: A fine layer in a tyre that makes fitting it easier.
6: What is calendaring?
A: The method of assessing tyre wear per month.
B: Adding markings that denote when a tyre was made.
C: Part of the tyre-making process.
7: What is carbon black?
A: The measurable polluting content of a carbon footprint.
B: The marks left on a snooker table by the last ball to be potted.
C: A filler material used to make grey rubber into black tyres.
8: What is de-vulcanisation?
A: A process of mechanical and chemical decomposition that affects tyres.
B: The post court-martial execution of the first officer of the Starship Enterprise.
C: The final process in tyre manufacture.
9: What is a contact patch?
A: A damp chamois leather pad used with the electric chair.
B: The area of a tyre’s tread in contact with the road at any given time.
C: A place where you go to meet with business associates.
10: What is deformation?
A: An offence you can be sued for?
B: The flexing of a tyre in response to the forces acting on it.
C: The distortion a tyre undergoes during fitment.
11: What is an E Marking?
A: A marking all post-June 1997 tyres carry to show they comply with European requirements.
B: A marking carried by all post-May 1986 tyres to show they may be sold in Yorkshire.
C: A marking all post-July 1990 tyres carry to show their sell-by date.
12: What is a sipe?
A: A medium sized, skulking wading bird with short legs, a long straight bill and poor spelling skills.
B: A tyre-fitter’s contraction of the words ‘stand pipe’.
C: A narrow slit between two blocks in a tyre’s tread, designed to dispel water and enhance grip.
Answers
1A
2C
3B
4A
5B
6C
7C
8A
9B
10B
11A
12C
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