Which statement describes nested tanks in MC338?

• A. No nesting
• B. The tank has only one shell
• C. The tank uses cryogenic insulation
• D. Has nested tanks (tank within a tank)

Answer: (D)

Nested tanks describe a tank-within-a-tank arrangement: an inner vessel sits inside an outer shell with space between them, usually insulated or evacuated. In MC338, this double-walled design provides secondary containment and minimizes heat transfer to the cargo. The inner tank holds the product, while the outer shell acts as a protective boundary and insulation, improving safety and helping maintain the cargo at a stable temperature. This is why describing MC338 as having nested tanks is the best fit. The other descriptions describe either a single-tank, non-nested layout or focus on insulation type rather than the inner-outer tank structure.