What is one characteristic feature of the MC-331 cargo tank?

• A. It has an oval cross-section
• B. It carries hazardous waste
• C. It features rounded ends
• D. It is designed for solid materials

Answer: (C)

The MC-331 cargo tank is specifically designed for transporting liquefied gases under pressure, and one of its distinctive features is that it typically has rounded ends. This design is important for structural integrity under the pressure of the gases it carries, allowing the tank to withstand these internal forces effectively. Rounded ends help distribute pressure evenly across the tank's surface, which enhances safety during transportation.

While the tank may carry various materials, including some types of hazardous substances, the defining characteristic that sets it apart from other tank types is the rounded end structure. This design consideration is paramount in ensuring the durability and safety of the tank while in service on roadways.