Fuel tanks are containers designed to store fuel for various vehicles and machinery, such as cars, trucks, and airplanes. They come in different shapes and sizes, depending on the type of vehicle and the amount of fuel needed. Fuel tanks are usually made from materials like metal or plastic, which can withstand the pressure and temperature changes that occur when fuel is stored. In addition to holding fuel, fuel tanks often have safety features to prevent leaks and spills. For example, many tanks are equipped with fuel gauges that help drivers monitor the fuel level. Proper maintenance of fuel tanks is essential to ensure they function safely and efficiently, preventing potential hazards like fuel contamination or explosions.