What type of road trailer contains multiple pressure vessels attached together

• A. Tube trailer
• B. Tank trailer
• C. Cryogenic trailer
• D. Box trailer

Answer: (A)

When road transport involves moving several individual gas cylinders, the trailer is designed to hold many separate pressure vessels in a bundled frame. This setup is what defines a tube trailer: a framework with multiple cylinders arranged in rows, connected to handling manifolds so the gas can be routed from the cylinders as needed. It’s built specifically to carry many small pressure vessels together, increasing capacity for compressed gases.

In contrast, a tank trailer carries one large bulk vessel (a single tank), a cryogenic trailer carries insulated tanks for very cold liquids, and a box trailer is a general rectangular cargo trailer not specialized for containing multiple pressure vessels.