Question 1 of 4
Advanced

What is the purpose of a surge arrestor?

Question 2 of 4
Advanced

What do zinc anodes do?

Question 3 of 4
Advanced

What characterises VMP?

Question 4 of 4
Advanced

When should you use a sine wave filter?

Question 4 of 4
Advanced

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 23 - Solar pumping system accessories
Sorry. You did not pass the 23 - Solar pumping system accessories test this time
Achieved badges:
How would you rate this course?
1: What is the purpose of a surge arrestor?
It protects against nearby lightning strikes and thunderstorms
1: What is the purpose of a surge arrestor?
It allows you to safely disconnect the power for service
You can find the answer here >
1: What is the purpose of a surge arrestor?
It prevents the motor from wearing out
You can find the answer here >
2: What do zinc anodes do?
They detect when water disappears
You can find the answer here >
2: What do zinc anodes do?
They help prevent corrosion in the motor
2: What do zinc anodes do?
They ensure that the motor is cooled
You can find the answer here >
3: What characterises VMP?
The voltage when solar panels are loaded optimally
3: What characterises VMP?
The voltage when wires aren’t connected
You can find the answer here >
3: What characterises VMP?
The current when the wires are short-circuited
You can find the answer here >
4: When should you use a sine wave filter?
With an external frequency drive connecting to a motor lower than 250VAC
You can find the answer here >
4: When should you use a sine wave filter?
With an external frequency drive connecting to a motor higher than 380VAC
4: When should you use a sine wave filter?
Whenever you want
You can find the answer here >