Which type of container is characterized by rounded ends and is designed to carry pressurized gases?

• A. Solid-holding container
• B. Liquid-holding container
• C. Cryogenic container
• D. Pressure container

Answer: (D)

The type of container characterized by rounded ends and specifically designed to carry pressurized gases is a pressure container. Pressure containers are engineered to withstand high internal pressures, which is essential for safely storing and transporting gases in a pressurized state. The rounded ends of these containers help to evenly distribute the stress exerted by the internal pressure, thus enhancing their structural integrity and safety.

This design is vital for preventing ruptures or leaks, which could lead to hazardous situations. Pressure containers are commonly used to transport various gases, including industrial gases, propane, and oxygen, among others, and are integral to many industrial and medical applications where gas containment is required.