Final answer:Rectangular fuelrails are used in some fuel systems to increase fuel pressure, prevent air from entering the system, and reducenoise.Explanation:Rectangular fuel rails are used in some fuel systems for a variety of reasons. One reason is that the shape helps increase fuel pressure. The rectangular shape allows for more surface area, which helps to distribute the pressure evenly and keep the fuel flowing smoothly. Additionally, the shape of the fuel rail can help keep air out of the injectors. By providing a tight seal, it prevents air from entering the system and disrupting the fuel flow. Finally, the rectangular shape can help reduce noise by minimizing vibration and resonance.Learn more about Fuel Rails here:brainly.com/question/35884645#SPJ11...

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