Which statement is true about a deluge sprinkler system?

Which statement is true about a deluge sprinkler system?

• A. A deluge system releases water through all heads when any head is activated
• B. A deluge system releases water only at the activated head
• C. A deluge system stores water separately at each head
• D. A deluge system never releases water unless manually activated

Answer: (A)

Deluge sprinkler systems are designed so every sprinkler head is connected to a common water-filled piping network with all heads open. When the system is activated—by heat, detection signals, or a manual release—water flows from every head at once. This provides rapid, blanket coverage in high-hazard areas where quick control of a fire is essential. The idea is to blanket the space, not to release water only at the one head that detects the fire. The other statements don’t fit because they describe behaviors that aren’t how deluge systems operate: water isn’t stored separately at each head, and water can be released automatically without manual activation.

Deluge sprinkler systems are designed so every sprinkler head is connected to a common water-filled piping network with all heads open. When the system is activated—by heat, detection signals, or a manual release—water flows from every head at once. This provides rapid, blanket coverage in high-hazard areas where quick control of a fire is essential. The idea is to blanket the space, not to release water only at the one head that detects the fire. The other statements don’t fit because they describe behaviors that aren’t how deluge systems operate: water isn’t stored separately at each head, and water can be released automatically without manual activation.