Which factor does NOT affect the delivery rate of a sprayer?

The correct answer is that temperature does not affect the delivery rate of a sprayer. When discussing factors that influence how much liquid a sprayer delivers, key elements include the size of the nozzle, sprayer speed, and the type of liquid being used.

The size of the nozzle directly impacts the flow rate since larger nozzles allow more liquid to pass through than smaller ones. Similarly, the speed of the sprayer can affect how much area is covered within a given time, thereby influencing the amount delivered per area. Different liquids can have various viscosities and properties that can alter how they flow through the sprayer system.

Temperature, while potentially affecting properties such as viscosity of the liquid, does not serve as a direct factor in the determination of the delivery rate itself since the rate is primarily governed by mechanical factors like nozzle size and speed settings.