Which device is designed to release water in response to heat?

Which device is designed to release water in response to heat?

• A. Smoke Detector
• B. Alarm Bell
• C. Sprinkler Head
• D. Fire Extinguisher

Answer: (C)

The main idea is automatic water release when heat is detected. A sprinkler head is part of an automatic sprinkler system and is built to discharge water when its heat-sensitive element reaches a certain temperature. Each head is connected to water-filled piping; once the element (a glass bulb or fusible link) is activated by heat, the valve opens and water sprays out to suppress the fire in the area around the head. This is different from a smoke detector, which only detects smoke and does not release water; an alarm bell, which just sounds to alert occupants; and a fire extinguisher, which dispenses extinguishing agent and is typically manual (not activated by heat).

The main idea is automatic water release when heat is detected. A sprinkler head is part of an automatic sprinkler system and is built to discharge water when its heat-sensitive element reaches a certain temperature. Each head is connected to water-filled piping; once the element (a glass bulb or fusible link) is activated by heat, the valve opens and water sprays out to suppress the fire in the area around the head. This is different from a smoke detector, which only detects smoke and does not release water; an alarm bell, which just sounds to alert occupants; and a fire extinguisher, which dispenses extinguishing agent and is typically manual (not activated by heat).