Study for the UK Driving Theory Practice Exam. Prepare with detailed questions, hints, and explanations. Get ready for your exam!

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When are you allowed to leave the engine running when you leave your vehicle?

  1. Never

  2. Only for a short time

  3. Only in rural areas

  4. Only in an emergency

The correct answer is: Never

Leaving your vehicle's engine running can be dangerous for both you and others around you. Initially, you may think that option B, only for a short time, would be the correct answer. However, even a short period of time with your engine running can contribute to air pollution and is also a risk for car theft. Option C and D, only in rural areas and only in an emergency, may seem like reasonable exceptions, but it's important to practice a consistent rule across all areas. Therefore, the best and safest option is to never leave your engine running when you leave your vehicle.