A buried water supply is accessed by which device designed to deliver water from the street main?

• A. Stopcock
• B. Bibcock
• C. Stop Valve
• D. Hydrant

Answer: (D)

Accessing the buried water supply from the street main is done with a hydrant. A hydrant is a fixture connected directly to the water main that is designed to deliver water, typically in large volumes, for firefighting and other rapid draw-offs. It differs from shut-off devices like stopcocks or stop valves, which merely isolate flow in a pipe, and from a bibcock, which is a small outdoor faucet for hoses at a building. So the hydrant is the device specifically intended to tap into and deliver water from the street main.