Which statement about the effect of droplet size on coverage is true?

Which statement about the effect of droplet size on coverage is true?

• A. Smaller droplets always provide better coverage.
• B. Larger droplets can reduce drift while maintaining adequate coverage.
• C. Droplet size has no effect on coverage.
• D. Nozzle type determines only pattern, not rate.

Answer: (B)

Droplet size shapes where the spray ends up: smaller droplets can give thorough coverage because they reach into tiny gaps and surface areas, but they’re easily carried by wind and can evaporate, increasing off-target drift. Larger droplets are heavier and settle more quickly, so they’re less prone to drift. If you want to keep drift low while still getting enough product on target, you can increase the total spray volume or adjust nozzle selection and spacing so the surface is adequately wetted even with coarser droplets. In practice, this trade-off—reducing drift with larger droplets while maintaining adequate coverage through appropriate application parameters—is why the statement is true.

Droplet size shapes where the spray ends up: smaller droplets can give thorough coverage because they reach into tiny gaps and surface areas, but they’re easily carried by wind and can evaporate, increasing off-target drift. Larger droplets are heavier and settle more quickly, so they’re less prone to drift. If you want to keep drift low while still getting enough product on target, you can increase the total spray volume or adjust nozzle selection and spacing so the surface is adequately wetted even with coarser droplets. In practice, this trade-off—reducing drift with larger droplets while maintaining adequate coverage through appropriate application parameters—is why the statement is true.