Correct answer: B. To help provide optimum road holding.
The vehicle manufacturer specifies the pressure to which tyres on a vehicle should be inflated. This is the pressure that gives the best performance in road holding, efficient braking and fuel consumption. Some manufacturers specify different pressures for front and rear tyres.
This is an official-style question from the Managing Risk topic of the Ireland driver theory test (Cat. B). Practise all 807 questions free on iTest.ie — with timed mock exams, automatic mistake tracking and progress sync across devices.
Practise the full question bank free →