Approximately what is the capacity range of a nonpressure cargo tank (MC-306/DOT-406)?

The capacity range of a nonpressure cargo tank, specifically the MC-306/DOT-406 type, is typically between 2,000 and 10,000 gallons. This design is specifically meant for transporting various liquids, including hazardous materials, and adheres to certain construction standards for safety and functionality.

While option C includes a range up to 12,000 gallons, the key aspect of the MC-306/DOT-406 specification is that its standard operational capacity usually aligns more closely with 2,000 to 10,000 gallons. Thus, option C is appropriate, as it encompasses the effective operational range while also acknowledging that certain specifications or unique configurations can slightly extend the upper limits within this context. The designation of MC-306/DOT-406 is associated with a regulatory framework that includes these typical capacity figures, making it essential for HMT professionals to recognize these specifications accurately.