Red Seal Sprinkler Fitter Practice Exam

What is the purpose of an alarm check valve in a sprinkler system?

1. To prevent backflow to the main supply

2. To provide a means of reading and controlling water flow while activating alarms

3. To monitor the system pressure

4. To adjust the temperature of the water flowing

The correct answer is: To provide a means of reading and controlling water flow while activating alarms

An alarm check valve plays a crucial role in the operation of a sprinkler system, particularly in terms of monitoring water flow and activating alarms. When water flows through the system during an activation, the alarm check valve detects this flow and sends a signal to the alarm system. This ensures that if the sprinkler system is activated due to a fire or other emergencies, appropriate alerts can be triggered, allowing for a swift response. The primary function of this valve is to differentiate between normal flow conditions (when the system is at rest) and abnormal flow conditions (when the system is activated). By doing this, it helps in preventing false alarms while also ensuring that any actual water flow related to an emergency is promptly communicated. Therefore, the correct choice reflects the integral aspect of the alarm check valve in both water flow management and in the operation of alarms within the sprinkler system. This highlights its importance in maintaining the safety and functionality of fire protection systems.