Virginia Commercial Applicator Turf Category 3B Practice Test

A hydraulic sprayer is the device that uses a pump to pressurize the liquid so it can be sprayed through a nozzle. The pump moves the pesticide solution from the tank, builds up pressure, and forces the liquid out as a spray. This pressurized flow is what atomizes the liquid into droplets and allows for even coverage on turf targets. The other terms don’t fit the mechanism: labeling is about pesticide product instructions and isn’t a sprayer, and micron refers to droplet size rather than the machine doing the spraying. A backpack sprayer is a type of sprayer, but the question describes the mechanism (pressure generated by a pump), which is characteristic of a hydraulic sprayer.