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BDifficulty 2/5

Which of the following factors increase a vehicle's fuel consumption?

Correct answer

Driving on urban roads

Driving on urban roads results in considerably higher fuel consumption than driving on interurban roads, even though vehicles travel at higher speeds on the latter. This is because the engine runs at idle for longer, and this leads to greater use of low gears, causing fuel consumption to rise, especially in 1st gear. Worn or incorrectly inflated tyres can significantly increase rolling resistance, but they do not increase consumption as much as driving on urban roads.

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  • Tyres inflated to a higher pressure

  • Good vehicle maintenance

  • Driving on urban roads

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