Most sprinkler systems are kept closed by which of the following components?

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Multiple Choice

Most sprinkler systems are kept closed by which of the following components?

Fusible links are the device that keeps sprinkler valves closed until heat from a fire causes them to release. A fusible link is a temperature-sensitive part designed to melt or break at a specific heat level, releasing the latch that keeps the valve or sprinkler head closed. This ensures water only enters the piping system when needed for fire suppression. Gravity doesn’t serve to hold the system closed, and supply valves control water flow once the system is activated rather than serving as the primary closure mechanism. Computer-controlled circuitry is not the standard mechanism in most systems, especially in older or simpler installations.

Fusible links are the device that keeps sprinkler valves closed until heat from a fire causes them to release. A fusible link is a temperature-sensitive part designed to melt or break at a specific heat level, releasing the latch that keeps the valve or sprinkler head closed. This ensures water only enters the piping system when needed for fire suppression.

Gravity doesn’t serve to hold the system closed, and supply valves control water flow once the system is activated rather than serving as the primary closure mechanism. Computer-controlled circuitry is not the standard mechanism in most systems, especially in older or simpler installations.

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