Pest Control Aircraft Pilot Practice Test

What can occur if iron or steel components react with acidic pesticide mixtures?

1. Lower pesticide effectiveness

2. Increased durability of the aircraft

3. Release of sulfur dioxide

4. Production of hydrogen gas

The correct answer is: Production of hydrogen gas

When iron or steel components come into contact with acidic pesticide mixtures, a chemical reaction can occur that leads to the production of hydrogen gas. This happens because acids can react with certain metals, particularly those that contain iron, resulting in a reaction that releases hydrogen. The formation of hydrogen gas is a significant concern in the context of aerial application of pesticides, as it not only represents a potential safety hazard due to the flammability of hydrogen but can also lead to pressure buildup in closed spaces, such as tanks or lines within the aircraft. This can compromise the integrity of the equipment and potentially cause failure or leaks, which affects the overall safety and effectiveness of pesticide application. Understanding this reaction is crucial for pilots and maintenance personnel involved in pest control aviation, as it highlights the importance of using compatible materials and properly managing equipment when working with acidic substances.