Cryogenic intermodal containers are best described as which of the following?

Cryogenic intermodal containers are best described as which of the following?

• A. Atmospheric Pressure and Poorly Insulated
• B. Non-Insulated
• C. Pressurized and Insulated
• D. Non-Pressurized, Highly Insulated

Answer: (D)

Cryogenic intermodal containers are built to keep very cold liquids from warming up. The key feature is extreme insulation—typically a double wall with vacuum or highly effective insulating materials—to minimize heat entering the container. Because the design relies on maintaining the liquid at a cryogenic temperature rather than building up high pressure, these vessels are not kept pressurized; any boil-off gas is vented to the atmosphere to prevent pressure buildup. So the best description is non-pressurized and highly insulated. The other options misstate either the level of insulation or the pressure inside the container.

Cryogenic intermodal containers are built to keep very cold liquids from warming up. The key feature is extreme insulation—typically a double wall with vacuum or highly effective insulating materials—to minimize heat entering the container. Because the design relies on maintaining the liquid at a cryogenic temperature rather than building up high pressure, these vessels are not kept pressurized; any boil-off gas is vented to the atmosphere to prevent pressure buildup. So the best description is non-pressurized and highly insulated. The other options misstate either the level of insulation or the pressure inside the container.