Technical and Vehicle Safety
Which of the following best describes the danger of mixing radial and cross-ply tyres on the same vehicle?
- ○It increases tread wear evenly across all tyres
- ✓It causes unpredictable handling, particularly when cornering
- ○It is only dangerous when driving at motorway speeds
- ○It increases rolling resistance but is otherwise safe
Correct answer
It causes unpredictable handling, particularly when cornering
Radial and cross-ply tyres have different flex characteristics; mixing them creates uneven grip and handling that can cause the driver to lose control.
This is one sample question. Practise the full bank with timed mock exams, every answer explained, and a predicted pass score — free to start in Theory Test Ireland.
Download on theApp StoreRelated questions
What is the minimum legal tread depth for car tyres in Ireland?Under-inflated tyres are dangerous mainly because they:When should you check your tyre pressures?Is it legal to fit tyres of different size or construction type on the same axle?Over-inflated tyres mainly cause:A tyre with a visible cut or bulge in the sidewall: