What is used when the main and lateral lines are placed at the same depth?

Prepare for the CR-21 Landscapes and Irrigation Test. Utilize flashcards and multiple-choice questions featuring hints and explanations. Get exam-ready!

Multiple Choice

What is used when the main and lateral lines are placed at the same depth?

Explanation:
When the main and the lateral lines are at the same depth, you want a valve that can regulate flow precisely without needing to change the direction of flow. The globe valve is designed for throttling and tight shut-off in a straight-through path, making it ideal for controlling how much water goes into the lateral branch at that same level. Its internal design lets you adjust flow smoothly as needed, which is exactly what you need at a junction where elevation isn’t providing a natural pressure change to help regulate flow. Other options don’t fit this purpose as well: a controller is an electronic device for timing rather than a flow-control valve; an angle valve is meant to redirect flow at a right angle rather than provide precise throttling; and an overly high water pressure isn’t a valve or a method of control.

When the main and the lateral lines are at the same depth, you want a valve that can regulate flow precisely without needing to change the direction of flow. The globe valve is designed for throttling and tight shut-off in a straight-through path, making it ideal for controlling how much water goes into the lateral branch at that same level. Its internal design lets you adjust flow smoothly as needed, which is exactly what you need at a junction where elevation isn’t providing a natural pressure change to help regulate flow.

Other options don’t fit this purpose as well: a controller is an electronic device for timing rather than a flow-control valve; an angle valve is meant to redirect flow at a right angle rather than provide precise throttling; and an overly high water pressure isn’t a valve or a method of control.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy