Which of the following statements about nonpressure tank cars is FALSE?

The assertion that a nonpressure tank car may carry sodium hydroxide and plastic pellets is indeed false. Nonpressure tank cars are designed to carry certain types of liquids, primarily those that do not require high internal pressure for transport, and they have specific limitations regarding the types of materials they can safely contain.

Sodium hydroxide is a hazardous material and may not be designated for transport in a nonpressure tank car unless specific regulations and container requirements are met. Additionally, plastic pellets typically would not be transported in a nonpressure tank car, which is primarily intended for liquids. Instead, solid materials such as plastic pellets would generally be shipped in different types of containers designed for bulk solids.

The other statements regarding nonpressure tank cars are accurate. They are exclusively used for transporting liquids, can be utilized for hazardous materials (as long as they meet safety and regulatory standards), and are subject to strict state and federal regulations to ensure safety in handling and transport.