Which nozzle type is best suited for handgun spraying of surface applications?

The correct choice for handgun spraying of surface applications is a nozzle type that has a high flow rate, straight stream, and large droplet size. This configuration is ideal for efficiently covering large surface areas and ensuring that the application penetrates the vegetation or water surface adequately. High flow rates allow for a faster application without excessively overlapping, making the process more efficient. The straight stream helps direct the product precisely to the target area, while larger droplet sizes reduce the likelihood of drift and evaporation, which is critical in ensuring that the chemicals reach the intended location effectively.

In contrast, the other options may not provide the desired coverage or efficiency for surface applications. A low flow rate with a fine mist could lead to insufficient application, as it might not deliver enough material to the surface. Medium flow rate with a variable angle may not provide the consistent coverage necessary in handgun applications, potentially resulting in uneven treatment. High pressure with a narrow stream, while effective for certain applications, risks creating a fine mist or drift that can lead to off-target application. Thus, the combination of a high flow rate, straight stream, and large droplet size is the most suitable for handgun spraying in this context.