Florida Fire State Practice Exam

What type of fire hydrant has water filled up to the nut?

1. Dry Barrel

2. Wet Barrel

3. Post Indicator Valve

4. Common Standpipe

The correct answer is: Wet Barrel

A wet barrel fire hydrant is the correct answer because this type is designed to keep water within the barrel at all times, which means it is filled with water up to the operating nut. This design allows for immediate water access when the hydrant is opened, making it particularly effective in areas where freezing temperatures are not a concern. In contrast, dry barrel hydrants are utilized in colder climates and are designed to prevent water from remaining in the barrel when not in use. This prevents freezing inside the hydrant, which could disrupt function. A post indicator valve is simply a valve used to indicate whether a water supply is open or closed and does not have the same structure as a hydrant. A common standpipe is primarily a vertical pipe that supplies water to various levels of a building, typically for fire suppression systems, and also does not function like a hydrant.