Spray Equipment And Calibration MEDIUM ASABE Agricultural Spray Standards

For standard flat-fan spray nozzles mounted on a horizontal agricultural boom, what is the required spray pattern overlap between adjacent nozzles to achieve uniform coverage?

Multiple Choice Options

A 30% to 50% overlap. ✓ OFFICIAL VERIFIED CORRECT ANSWER
B 0% overlap (patterns must barely touch edges).
C 100% overlap (each nozzle sprays 5 boom widths).
D Overlap is prohibited by federal law.
✓ LEGAL EXPLANATION & STATUTORY RATIONALE
ASABE Agricultural Spray Standards
Official Manual Chapter: Chapter 9: Application Equipment

Flat-fan nozzles produce tapered edges. A 30% to 50% overlap of adjacent spray fans is required to produce uniform chemical distribution across the swath.

Official EPA Core Study Domain Spray Equipment And Calibration
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