IrrigationQuestion 16 of 100
A smart irrigation controller that adjusts run times using local weather data is called what?
a.A manual timer
b.An anti-siphon valve
c.A pressure regulator
d.An ET-based or weather-based controller
Explanation
An evapotranspiration (ET) or weather-based controller uses temperature, humidity, wind, and solar data to estimate plant water needs and adjust schedules automatically. This reduces overwatering compared with a fixed manual timer. MWELO encourages such controllers to improve landscape water efficiency.
Practice all 100 questions free — no signup required.
Related questions on this topic
- Head-to-head spacing of spray heads means each head is spaced so its throw reaches what point?
- A zone must deliver 18 GPM and the water meter supplies 12 GPM available flow. What is the BEST corrective action?
- A matched precipitation rate (MPR) nozzle set is designed to do what?
- A pressure-regulating device is added to a spray head when static pressure is too high. What is the typical target operating pressure for fixed spray heads?
- Misting or fogging from spray heads is usually a sign of what condition?
- An irrigation solenoid valve is operated by what signal from the controller?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against California CSLB C-27 Landscaping Trade Exam · How we review