Hose streams should be drawn from sources that do not reduce sprinklered protection. Which option best describes this requirement?

Hose streams should be drawn from sources that do not reduce sprinklered protection. Which option best describes this requirement?

• A. Water from sources that do not reduce sprinklered protection.
• B. Water from sources that could reduce sprinklered protection.
• C. Water from sources that are not connected to the building's water supply.
• D. Water from sources that are not reliable.

Answer: (A)

The important idea here is preserving the sprinkler system’s ability to operate as designed while hose streams are being used. Sprinklers are engineered to receive a specific amount of water at a certain pressure. If you draw additional water from a source that shares the same supply and could lower that pressure or reduce the available flow, the sprinklers may not perform as intended, which could allow the fire to grow. That’s why the best description is water from sources that do not reduce sprinklered protection. It directs you to use a water source for hose streams that won’t take away capacity from the sprinkler system, so the protection the sprinklers are providing remains intact. The other ideas imply pulling from sources that could compromise the sprinkler system, aren’t connected to the building’s water supply (which doesn’t inherently guarantee no impact on sprinklers), or are unreliable. Those scenarios don’t meet the requirement of not reducing sprinklered protection.

The important idea here is preserving the sprinkler system’s ability to operate as designed while hose streams are being used. Sprinklers are engineered to receive a specific amount of water at a certain pressure. If you draw additional water from a source that shares the same supply and could lower that pressure or reduce the available flow, the sprinklers may not perform as intended, which could allow the fire to grow.

That’s why the best description is water from sources that do not reduce sprinklered protection. It directs you to use a water source for hose streams that won’t take away capacity from the sprinkler system, so the protection the sprinklers are providing remains intact.

The other ideas imply pulling from sources that could compromise the sprinkler system, aren’t connected to the building’s water supply (which doesn’t inherently guarantee no impact on sprinklers), or are unreliable. Those scenarios don’t meet the requirement of not reducing sprinklered protection.