L.P Book HAZMAT / Lesson Plan #17 Hazardous Materials Operations

Dilution is the process of adding water to water-soluble materials in order to reduce their concentration or strength. This is done to decrease the hazard or potency of the material, making it less harmful or dangerous. By adding water, the concentration of the substance is decreased, making it safer to handle or use. Dilution is a common control method used in various industries to reduce the risk associated with certain materials or chemicals.

The Table of Initial & Protective Action Distances section of the Emergency Action Guide is green color coded pages.

The steps for determining defensive response objectives include considering the current stage of the incident, setting strategic goals for both present and future events, and making decisions that focus on changing the stressor, the containment system, and hazardous materials. All of these factors are important in establishing a comprehensive defensive response plan.

The Table of Initial & Protective Action Distances section of the Emergency Action Guide contains information about chemicals that have poisonous vapor hazards. This means that these chemicals can release toxic gases or fumes into the air, which can be harmful or even deadly if inhaled. The table provides guidance on the distances that should be maintained from the source of the chemicals in order to protect individuals from exposure to these poisonous vapors.

The correct answer is B because Level B liquid splash protective clothing provides a high level of protection against liquid splashes, chemicals, and hazardous substances. This type of clothing typically includes a chemical-resistant suit with a hood, gloves, and boots to ensure full body protection. Level B clothing is suitable for situations where the potential for liquid splashes or chemical exposure is high, but there is no need for respiratory protection.

The correct answer is "Ensure materials are not water reactive". When choosing to use the dilution process, it is important to ensure that the materials being used are not water reactive. This is because water reactive materials can react violently or release toxic gases when they come into contact with water. Therefore, it is necessary to carefully assess the materials and make sure they are safe to use in the dilution process.

Identifying resources available for determining the concentration of a released material within an endangered area is not typically an Operations Level responsibility. Operations Level responders are responsible for implementing the response activities directed by the Incident Commander and do not typically have the expertise or resources to determine the concentration of released materials. This task is usually performed by specialized teams or agencies with the necessary equipment and training.

The correct answer is "Both a & b" because vapor suppression refers to the reduction or elimination of vapors, which does not change the material itself but can increase the immediate hazard. Therefore, both options a and b are correct.

Operations Level personnel should be trained to respond in a defensive fashion to control the leak from a safe distance. This means that they should not directly engage with the leak or try to contain it themselves, but rather take measures to protect themselves and others while waiting for specialized teams to arrive. This approach minimizes the risk of exposure to hazardous materials and ensures the safety of the personnel involved.

Vapor dispersion is a method used to disperse or move vapors away from certain materials. This can be done in both open and confined areas. Additionally, vapor dispersion can bring flammable gas through its flammability range, which means it can potentially ignite the gas if it is within the flammability range. Therefore, the correct answer is "Both a & c" because both statements a and c are true.