Red Seal Sprinkler Fitter Practice Exam

What type of system utilizes a water motor gong for alarms?

1. Pre-action system

2. Deluge or wet pipe system

3. Foam-based system

4. Dry pipe system

The correct answer is: Deluge or wet pipe system

A water motor gong is an alarm device that is commonly used in connection with a wet pipe sprinkler system. This device operates by using water flow to drive a motor that rings a bell or gong, which alerts occupants or fire personnel that the system has been activated due to water flowing through the pipes, typically in response to a fire condition. In a wet pipe system, the pipes are always filled with water, and when a sprinkler head is triggered, the water flows through the pipe network, activating the water motor gong. This provides a straightforward and reliable indication of activation, as the sound can be heard throughout the building, alerting occupants to the situation. Pre-action systems, dry pipe systems, and foam-based systems utilize different methods for triggering alarms and do not typically involve the direct use of a water motor gong as part of their alarm mechanism. Pre-action systems may incorporate electric alarms, dry pipe systems often use air pressure alarms, and foam-based systems may have different types of alarms related to foam activation rather than water flow.