Which of the following is NOT a function of a nozzle?

• A. Amount of spray
• B. Size of droplets
• C. Pattern/formation
• D. Temperature of the spray chamber

Answer: (D)

The nozzle primarily controls three things: how much spray comes out, the size of the droplets, and how the spray is distributed in space (the pattern or formation). The amount of spray depends on the nozzle’s orifice size and the pressure driving the liquid; a larger orifice or higher pressure generally increases flow. The size of the droplets is also governed by the nozzle design and the pressure, with different nozzle types producing finer or coarser sprays. The pattern or formation—the shape of the spray cone or stream—results from the nozzle’s internal design, such as flat-fan, hollow-cone, or solid-stream configurations.

The temperature of the spray chamber isn’t determined by the nozzle. That aspect is controlled by the heating or cooling systems and overall chamber design, not by the nozzle itself.