The ______ system is equipped with all sprinkler heads of the open type.

The ______ system is equipped with all sprinkler heads of the open type.

• A. Deluge
• B. Wet Pipe
• C. Dry Pipe
• D. Preaction

Answer: (A)

Open-type sprinkler heads mean every head can release water as soon as the system is activated, without needing each head to respond individually. In a deluge system, all sprinkler heads are open and connected to a common water supply, so when the system is activated water pours from every head at once to provide rapid, wide-area coverage. Other system types—wet pipe, dry pipe, and preaction—use closed heads that only release water from the heads that respond to heat or through a controlled release, not from all heads simultaneously. So the system described—the one with all heads open—is the deluge system.

Open-type sprinkler heads mean every head can release water as soon as the system is activated, without needing each head to respond individually. In a deluge system, all sprinkler heads are open and connected to a common water supply, so when the system is activated water pours from every head at once to provide rapid, wide-area coverage. Other system types—wet pipe, dry pipe, and preaction—use closed heads that only release water from the heads that respond to heat or through a controlled release, not from all heads simultaneously. So the system described—the one with all heads open—is the deluge system.