What are the characteristics of a Dry Bulk Cargo Tank?

The correct option describes a Dry Bulk Cargo Tank as having a V-shaped design with rounded sides, which is characteristic of containers used for transporting dry bulk materials like grains, powders, and other solid substances. This design helps facilitate the unloading process, allowing the materials to flow out smoothly and reducing the chances of material bridging inside the tank.

In contrast, the other options refer to characteristics not typical of dry bulk cargo tanks. For instance, indicating that a tank is pressurized and rectangular implies it is more suited for transporting liquids or gases under pressure, which does not apply to dry bulk cargo tanks used for solids. Similarly, stating that it carries liquids at high pressure incorrectly describes the function of a dry bulk tank, which is not designed for liquids. The last option, which claims that it is designed for transporting solid rock materials, does not fully capture the broader range of dry bulk goods these tanks handle, such as food products, chemicals, and other granular materials. Thus, the outline of its characteristics highlights its specific design purpose and functionality.