Correct answer: C. The engine will not start.
All motor vehicles have a battery to supply power, primarily to start the engine. If the battery is flat, the driver will not be able to start the engine in the normal way. When the engine is running, it produces its own electricity to recharge the battery and run the various electrical components, including lights, heating, the radio and so on. If the battery is completely dead it will have to be replaced.
This is an official-style question from the Technical Matters 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.
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