Which action is likely to cause an increase in fuel consumption?

1. A.Harsh acceleration.
2. B.Driving at a constant speed.
3. C.Turning off air conditioning.
4. D.Looking ahead and anticipating traffic flow.

This is an official-style question from the Safe and Responsible Driving 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.