CIT Electrical Components & Controller Programming 2

Question 1

A Wi-Fi-enabled smart irrigation controller loses its internet connection. How will it handle scheduled irrigation?

Accepted Answer

The controller continues running its locally stored schedule until the connection is restored and updates can be downloaded

Answer

All irrigation stops until the connection is restored

Answer

It switches to manual-only operation

Answer

All zones run continuously until reconnected

Question 2

A controller's display shows an 'ERR' or fault code on a specific zone. After verifying the zone wiring is intact, what component inside the controller is most likely responsible?

Accepted Answer

The triac (solid-state relay) that switches power to that specific zone output

Answer

The transformer

Answer

The LCD display panel

Answer

The backup battery

Question 3

What is a 'program' in the context of a multi-program irrigation controller?

Accepted Answer

An independent watering schedule with its own set of assigned zones, run times, start times, and watering days

Answer

A software update for the controller

Answer

The controller's operating manual

Answer

A remote access application for smartphones

Question 4

A soil moisture sensor is connected to an irrigation controller. When the soil moisture level is above the setpoint, the controller will:

Accepted Answer

Skip or suspend scheduled irrigation cycles until the soil moisture drops below the setpoint

Answer

Increase run times for all zones

Answer

Only run the zones farthest from the sensor

Answer

Double the watering frequency

Question 5

When replacing a controller battery, what is its primary function in most modern irrigation controllers?

Accepted Answer

To maintain the real-time clock (date and time) during power outages so the schedule runs at the correct times

Answer

To power the solenoid valves during operation

Answer

To store all programming permanently

Answer

To power the Wi-Fi antenna

Question 6

A decoder-based two-wire irrigation system requires what additional component at each valve location that a conventional multi-wire system does not?

Accepted Answer

A field decoder module that receives signals from the two-wire path and activates the specific solenoid valve

Answer

An additional transformer

Answer

An additional rain sensor

Answer

A pressure regulator