FREE IA Electrical Components & Troubleshooting Questions and Answers

Question 1

What is the purpose of a solenoid in an irrigation valve?

Accepted Answer

Activates valve operation

Answer

Regulates water pressure

Answer

Detects soil moisture

Answer

Measures water flow

Question 2

Which tool is used to test voltage in irrigation controller wiring?

Accepted Answer

Multimeter

Answer

Ohmmeter

Answer

Clamp meter

Answer

Wire tracer

Question 3

A zone fails to activate but others work fine. What is the likely cause?

Accepted Answer

Broken solenoid or wire

Answer

Low mainline pressure

Answer

Faulty pump relay

Answer

Controller power failure

Question 4

What is the typical voltage output of a residential irrigation controller?

Accepted Answer

24V AC

Answer

12V DC

Answer

48V DC

Answer

120V AC

Question 5

What does a controller's 'common wire' do?

Accepted Answer

Completes the valve circuit

Answer

Connects power to the timer

Answer

Activates all valves simultaneously

Answer

Powers the rain sensor

Question 6

What is a symptom of a short circuit in irrigation valve wiring?

Accepted Answer

Controller shows fault or shuts down

Answer

Excessive water pressure

Answer

Sprinkler heads not popping up

Answer

Inconsistent watering schedule