Hazardous Materials Awareness Army 74D Practice Test

Pipelines transport which materials?

Electrical energy Vapors only Solids Liquids and gases

Correct Answer:

Liquids and gases

Explanation:

Pipelines are designed to move fluids—substances in liquid or gaseous form—through a contained network over distance. They handle liquids and gases, not electrical energy, solids, or vapors alone. In practice, a pipeline can carry a liquid product like fuel or a gas such as natural gas, and leaks can release either a liquid pool or a vapor cloud. This is why the description that pipelines transport liquids and gases is the best choice.

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