The type of layout that includes tanks arranged in a U-shape is known as?

The correct choice, which describes the type of layout where tanks are arranged in a U-shape, is known as the Horseshoe layout. This configuration is significant in fuel systems because it offers a balance of accessibility for maintenance and operational efficiency. By arranging tanks in a U-shape, it allows for easier monitoring and management of fuel levels, as well as streamlined logistics for refueling operations. The design often facilitates effective drainage and can enhance safety by minimizing spill risks.

In contrast, a Parallel layout typically has tanks arranged side by side, which may be beneficial for maximizing space but does not offer the same access or flow advantages as the Horseshoe configuration. The In-line setup features tanks lined up in a straight line, which may complicate operations compared to the Horseshoe. The Cluster configuration may involve tanks grouped together but does not specify an arrangement that creates a U-shape. Therefore, the Horseshoe layout is specifically defined by its U-shape design, making it the correct answer.