Which of the following is NOT a variable controlling spray output?

Which of the following is NOT a variable controlling spray output?

• A. Temperature
• B. Nozzle spacing
• C. Pressure
• D. Ground speed

Answer: (A)

The main concept is how spray output is controlled by the system itself, not just by field movement or coverage. The amount of liquid coming out of each nozzle is set by the nozzle’s design and the pressure driving it; this is the actual output rate. Ground speed changes how long the nozzle spends over a given area, influencing how much material ends up on the target per area. Nozzle spacing affects coverage pattern and overlap, which influences uniformity and total coverage but doesn’t directly change the flow rate from each nozzle. Temperature doesn’t directly adjust how much liquid is emitted from the nozzle; it may affect viscosity or drift tendencies, but it isn’t a control for spray output. So temperature is not a variable that controls spray output.

The main concept is how spray output is controlled by the system itself, not just by field movement or coverage. The amount of liquid coming out of each nozzle is set by the nozzle’s design and the pressure driving it; this is the actual output rate. Ground speed changes how long the nozzle spends over a given area, influencing how much material ends up on the target per area. Nozzle spacing affects coverage pattern and overlap, which influences uniformity and total coverage but doesn’t directly change the flow rate from each nozzle. Temperature doesn’t directly adjust how much liquid is emitted from the nozzle; it may affect viscosity or drift tendencies, but it isn’t a control for spray output. So temperature is not a variable that controls spray output.