What describes a Hydraulic Sprayer?

• A. A sprayer that uses compressed air to create a fine mist.
• B. A sprayer that uses a hand pump only.
• C. A sprayer that uses a fan to spread liquid from the tank.
• D. A sprayer where insecticide flows from a tank through a pump under high pressure, up to about 600 psi, for large habitats.

Answer: (D)

A hydraulic sprayer operates by pushing the pesticide liquid through a pump to high pressure and forcing it out through a nozzle to create a spray. This high-pressure delivery lets the liquid reach larger areas, which is why it’s described as suitable for large habitats and is typically used at pressures around several hundred psi, up to about 600 psi. The other descriptions refer to different spray systems: a sprayer that uses compressed air to atomize the liquid relies on air rather than a high-pressure liquid flow; a hand-pump-only sprayer is low-pressure and manual; a sprayer that uses a fan to spread liquid is more like a mist blower or air-assisted device. Therefore, the description that matches a hydraulic sprayer is the one that describes the liquid flowing from a tank through a pump under high pressure, delivering a spray for large habitats.