Ken Tesh Water Distribution Operator Exam 1 Practice 2025 – The All-in-One Guide to Achieving Exam Success!

The auxiliary valve on a wet barrel hydrant is located between the hydrant and the water main. This position is crucial for operations because it allows for the control of water flow from the main into the hydrant, enabling maintenance or repairs to be performed on the hydrant without disrupting service to the entire water system. By having the auxiliary valve in this position, operators can isolate the hydrant from the main, effectively preventing water from flowing into the hydrant and allowing for safe work on the hydrant itself.

This placement is essential for both operational efficiency and safety, as it ensures that the hydrant can be serviced while maintaining the integrity of the water distribution system. The other locations mentioned do not provide the same functional ability to control the water flow for maintenance purposes.