Water is controlled in a sprinkler system by which component?

Water is controlled in a sprinkler system by which component?

• A. A Ball And Check Valve
• B. An Inline Valve
• C. A Metered Valve
• D. An Indicating Valve

Answer: (D)

Water supply to a sprinkler system is controlled by an indicating valve because this device both operates the main supply and provides a clear, visual indication of whether the valve is open or closed. That visible indication helps crews verify at a glance that water is flowing into the system or that the supply has been shut off for maintenance or in an emergency. In many setups, the indicating valve may also integrate with alarms to alert if the valve position is not what it should be. Other devices mentioned serve different roles—ball and check valves prevent backflow, inline valves are generic controls, and metered valves regulate flow without giving a clear status indication—so they don’t fulfill the same combined control-and-indication function.

Water supply to a sprinkler system is controlled by an indicating valve because this device both operates the main supply and provides a clear, visual indication of whether the valve is open or closed. That visible indication helps crews verify at a glance that water is flowing into the system or that the supply has been shut off for maintenance or in an emergency. In many setups, the indicating valve may also integrate with alarms to alert if the valve position is not what it should be. Other devices mentioned serve different roles—ball and check valves prevent backflow, inline valves are generic controls, and metered valves regulate flow without giving a clear status indication—so they don’t fulfill the same combined control-and-indication function.