A fuel tank is a container designed to store fuel for various types of vehicles and machinery. It is typically made from materials like metal or plastic and is built to withstand pressure and prevent leaks. Fuel tanks can vary in size and shape, depending on their intended use, such as in cars, airplanes, or industrial equipment. Fuel tanks are essential for the operation of engines, as they supply the necessary fuel for combustion. They are often equipped with features like fuel gauges to monitor levels and safety mechanisms to prevent overfilling. Proper maintenance of a fuel tank is crucial to ensure efficiency and safety in fuel storage and usage.