The CDA (Controlled Droplet Applicator) sprays in which pattern?

The CDA (Controlled Droplet Applicator) sprays in which pattern?

• A. Flat fan pattern
• B. Solid cone pattern
• C. Narrow jet pattern
• D. Hollow cone pattern

Answer: (D)

The main idea is how a spray nozzle distributes droplets. A Controlled Droplet Applicator is designed to emit spray in a hollow cone pattern, which means droplets form a ring around the nozzle exit with a relatively empty center. This 360-degree annular distribution helps achieve even coverage of the turf canopy as the sprayer passes and as nozzles are oriented, while reducing off-target deposition by avoiding a dense centerline spray. In contrast, flat fan would create a broad, flat sheet; a solid cone would fill the entire cone including the center; and a narrow jet would produce a focused, straight stream—patterns that don’t match how the CDA delivers spray.

The main idea is how a spray nozzle distributes droplets. A Controlled Droplet Applicator is designed to emit spray in a hollow cone pattern, which means droplets form a ring around the nozzle exit with a relatively empty center. This 360-degree annular distribution helps achieve even coverage of the turf canopy as the sprayer passes and as nozzles are oriented, while reducing off-target deposition by avoiding a dense centerline spray. In contrast, flat fan would create a broad, flat sheet; a solid cone would fill the entire cone including the center; and a narrow jet would produce a focused, straight stream—patterns that don’t match how the CDA delivers spray.