A non-compression single-handle faucet that contains the hot and cold water openings is a ______ faucet.

• A. Compression
• B. Port-control
• C. Ball-type
• D. Cartridge

Answer: (B)

Port-control faucets control water flow by aligning internal ports inside the valve body, and they have separate hot and cold inlets (openings) built into the valve. Because it’s a single-handle design that doesn’t rely on a compression washer to stop flow, the handle moves to mix water from those two distinct ports. That combination of a non-compression mechanism and the presence of hot and cold openings inside the valve body is what defines a port-control faucet. Other types—like compression (uses a washer), ball-type (uses a ball with seats), or cartridge (uses a cartridge cartridge for mixing)—don’t match both characteristics as clearly.