What is a feature of metering faucets?

• A. They run continuously
• B. They are adjustable manually
• C. They shut off automatically
• D. They require constant monitoring

Answer: (C)

Metering faucets are designed to provide water only for a specified duration and automatically shut off once that time limit is reached. This feature promotes water conservation by minimizing waste and ensuring that water is not left running unnecessarily. Such faucets typically use a spring-loaded mechanism or a sensor to control the flow of water, returning to the closed position once the user has finished using the water. This automatic shut-off function is particularly beneficial in public restrooms and high-traffic areas, as it helps to reduce water usage and maintenance needs.

Other options, while they describe attributes of different faucet types or functionalities, do not align with the core design purpose of metering faucets, which distinctly includes the automatic shut-off feature.