Viewed from the rear, a liquid carrier has an elliptical shape. This indicates what type of carrier?

Viewed from the rear, a liquid carrier has an elliptical shape. This indicates what type of carrier?

• A. MC 307/DOT 407
• B. MC 312/DOT 412
• C. MC 306/DOT 406
• D. MC 331

Answer: (C)

End shape helps identify the tank design and operating pressure. An elliptical rear view is a hallmark of a non-pressurized liquid cargo tank. These tanks carry liquids at around atmospheric pressure, so their ends are formed in an oval/elliptical shape to balance strength with capacity and ease of cleaning. This visual cue points to the non-pressurized liquid cargo design, which corresponds to the MC 306/DOT 406 class. Other tank designs (for example, those built for pressurized service or for certain chemicals) use different end shapes and configurations, so the elliptical rear specifically signals a non-pressurized liquid tanker.

End shape helps identify the tank design and operating pressure. An elliptical rear view is a hallmark of a non-pressurized liquid cargo tank. These tanks carry liquids at around atmospheric pressure, so their ends are formed in an oval/elliptical shape to balance strength with capacity and ease of cleaning. This visual cue points to the non-pressurized liquid cargo design, which corresponds to the MC 306/DOT 406 class. Other tank designs (for example, those built for pressurized service or for certain chemicals) use different end shapes and configurations, so the elliptical rear specifically signals a non-pressurized liquid tanker.