Final answer:
Increasing nozzle orifice size does not produce smaller or more uniform droplets - it's the opposite. A larger orifice results in larger droplets, whereas a smaller orifice tends to produce smaller and more consistent droplet sizes.
Step-by-step explanation:
The statement that increasing nozzle orifice size will produce smaller and more uniform droplets is actually false. In spray systems and fluid dynamics, the size of the nozzle orifice has a direct impact on the droplet size. A larger orifice will typically produce larger droplets due to the increased volume of fluid that can pass through the nozzle at any given time. Conversely, a smaller orifice tends to produce smaller and more uniform droplets because the fluid is more finely atomized as it passes through the narrower opening. The uniformity of droplets also depends on other factors such as fluid properties, spray pressure, and nozzle design.