Diversion, diking, and retention are techniques used in confinement to achieve what outcome?

• A. Confinement
• B. Evacuation
• C. Dilution
• D. Ventilation

Answer: (A)

Containment of the spilled material is the goal. Diversion channels redirect the liquid away from sensitive areas to prevent it from reaching drains, waterways, or personnel paths. Diking or berms create physical barriers around the spill, stopping it from spreading beyond a defined area. Retention areas collect the material in a designated spot, so responders can recover it safely without it escaping. Together, these actions keep the hazard confined, reducing exposure risk and making cleanup more manageable. Evacuation focuses on moving people away from danger, dilution lowers concentration but doesn’t stop the material from spreading, and ventilation moves vapors rather than containing the liquid; they don’t achieve the same level of physical confinement.