What is the designation for a non-pressurized tank car?

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Prepare for the North Carolina Firefighter Hazardous Materials Exam with targeted flashcards and multiple choice questions. Each question comes with hints and explanations. Equip yourself to succeed!

Multiple Choice

What is the designation for a non-pressurized tank car?

Explanation:
Non-pressurized tank cars are designed to carry liquids at atmospheric pressure, so their designation reflects non-pressurized service. The MC 306 / DOT 406 family is the standard for these cars, typically hauling flammable liquids like gasoline and fuel oil and featuring a bottom outlet for unloading. The other designations correspond to different service: low-pressure cars for slight internal pressure (MC 307 / DOT 407), corrosives (MC 312 / DOT 312), or compressed gases at high pressure (MC 331 / DOT 331). So the non-pressurized option is MC 306 / DOT 406.

Non-pressurized tank cars are designed to carry liquids at atmospheric pressure, so their designation reflects non-pressurized service. The MC 306 / DOT 406 family is the standard for these cars, typically hauling flammable liquids like gasoline and fuel oil and featuring a bottom outlet for unloading. The other designations correspond to different service: low-pressure cars for slight internal pressure (MC 307 / DOT 407), corrosives (MC 312 / DOT 312), or compressed gases at high pressure (MC 331 / DOT 331). So the non-pressurized option is MC 306 / DOT 406.

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