Which designation corresponds to a high-pressure tank truck used for liquefied gases and typically bullet-shaped?

Which designation corresponds to a high-pressure tank truck used for liquefied gases and typically bullet-shaped?

• A. MC 338
• B. MC 331
• C. MC 307 / DOT 407
• D. MC 312

Answer: (B)

High-pressure tank trucks that carry liquefied gases use a bullet-shaped end to handle the higher internal pressures and to distribute stress more effectively at the ends. This design feature is a hallmark of these high‑pressure tanks. The MC 331 designation is the standard for these cargo tanks, specifically used for liquefied petroleum gases like propane and butane, where keeping the liquid under significant pressure is essential. In contrast, other designations refer to different tank types (for example, low-pressure or non‑pressurized tanks), which is why MC 331 is the correct choice for this bullet-shaped, high‑pressure LPG transport.

High-pressure tank trucks that carry liquefied gases use a bullet-shaped end to handle the higher internal pressures and to distribute stress more effectively at the ends. This design feature is a hallmark of these high‑pressure tanks. The MC 331 designation is the standard for these cargo tanks, specifically used for liquefied petroleum gases like propane and butane, where keeping the liquid under significant pressure is essential. In contrast, other designations refer to different tank types (for example, low-pressure or non‑pressurized tanks), which is why MC 331 is the correct choice for this bullet-shaped, high‑pressure LPG transport.