HAZMAT CDL Practice Test 2026 - Free CDL Practice Questions and Study Guide

Choosing to keep all people far away and upwind of the accident is the correct approach in a situation involving hazardous materials. When hazardous materials are released, such as in a spill or leak during an accident, these substances can create dangerous fumes, vapors, or toxic exposure. By positioning people upwind, you create a barrier against the direction of the contaminants, significantly reducing the risk of inhalation or contact with harmful substances.

This action helps ensure that individuals are less likely to be affected by any hazardous exposure that could travel downwind due to prevailing winds. Keeping the area secure and preventing people from moving closer is essential until trained emergency responders can handle the situation appropriately.

In the context of the other options, approaching the scene to assess damage or waiting for emergency services without taking preventive measures could put you and others at risk of exposure to dangerous substances. Therefore, maintaining a safe distance and positioning yourself upwind is critical for safety in these scenarios.