Which filter type uses a mesh or screen to remove particles from irrigation water?

• A. Screen Filter
• B. Disc Filter
• C. Media Filter
• D. UV Filter

Answer: (A)

The key idea here is filtration by a physical screen. A screen filter uses a mesh or screen as the filtering element, so water passes through the mesh and solids larger than the mesh openings are blocked and stay on the upstream side. The mesh size determines what gets captured, and the device is designed to be periodically cleaned—often by backwashing—to clear the trapped debris and restore flow. This direct use of a mesh or screen to physically separate particles is what makes a screen filter the best-fit answer.

Disc filters also remove solids but use a stack of discs with narrow passages rather than a simple screen mesh, so they’re a different screen-based design. Media filters rely on porous media like sand for depth filtration, not a mesh screen. UV filters don’t remove particles at all; they disinfect water with ultraviolet light.