Which equipment mixes pesticides to prevent settling out to bottom of tank?

• A. Tank
• B. Strainers
• C. Agitation
• D. Nozzles

Answer: (C)

Keeping the mixture evenly suspended is essential for uniform application. Agitation is the equipment that does this by continuously mixing the liquid in the tank, which prevents the pesticide from settling to the bottom. When the contents stay in motion, solids or coarse droplets stay dispersed throughout the solution, so every portion of spray draws the same concentration toward the nozzle.

This works because agitation actively stirs the tank contents with devices like an impeller or propeller. The tank itself simply holds the liquid, strainer blocks debris, and nozzles deliver the spray; none of them maintain the mixture in motion once it’s in the lines and nozzles. So, agitation is the mechanism that keeps the formulation in constant suspension, ensuring consistent concentration, reliable nozzle flow, and better spray quality. Use the appropriate agitation method and speed for the formulation, and re-agitate after loading or refilling to maintain uniformity.