6 questions Intermediate

### Monitoring and controls

This course test contains 6 questions and can be retaken at any time.

You must answer all questions correctly to pass the test and complete the course.

Question 1 of 6 Intermediate

A VFD is a device used to change the frequency of the alternating:

Question 2 of 6 Intermediate

Which of the following statements depict the actual benefit of a VFD.

Question 3 of 6 Intermediate

In which of the following circumstances should a VFD be used?

Question 4 of 6 Intermediate

To achieve high irrigation efficiency in all types of irrigation, it is important to be able to control the:

Question 5 of 6 Intermediate

A VFD provides soft start and soft stop that helps:

Question 6 of 6 Intermediate

When a VFD is installed with a pump, what happens if the valve for one irrigation zone is closed and other is open?

Question 6 of 6 Intermediate

# Test results

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Q: A VFD is a device used to change the frequency of the alternating:
A: Current
Q: A VFD is a device used to change the frequency of the alternating:
A: Energy
01: Current
03: Efficiency
Q: A VFD is a device used to change the frequency of the alternating:
A: Efficiency
01: Current
02: Energy
Q: Which of the following statements depict the actual benefit of a VFD.
A: It converts input frequency of 50 Hz or 60 Hz to an output frequency that is twice the input frequency.
01: It converts input frequency of 50 Hz or 60 Hz to an output frequency that is twice the input frequency. Your answer
02: It is used to avoid cavitation.
03: It provides soft start and soft stop, thereby, minimising the risk of water hammer in the system.
Q: Which of the following statements depict the actual benefit of a VFD.
A: It is used to avoid cavitation.
01: It converts input frequency of 50 Hz or 60 Hz to an output frequency that is twice the input frequency.
03: It provides soft start and soft stop, thereby, minimising the risk of water hammer in the system.
Q: Which of the following statements depict the actual benefit of a VFD.
A: It provides soft start and soft stop, thereby, minimising the risk of water hammer in the system.
Q: In which of the following circumstances should a VFD be used?
A: If an irrigation system has unchanged flow and pressure requirements.
01: If an irrigation system has unchanged flow and pressure requirements. Your answer
02: If an irrigation system has more than one zone.
03: Most common flood irrigation systems.
Q: In which of the following circumstances should a VFD be used?
A: If an irrigation system has more than one zone.
Q: In which of the following circumstances should a VFD be used?
A: Most common flood irrigation systems.
01: If an irrigation system has unchanged flow and pressure requirements.
02: If an irrigation system has more than one zone.
Q: To achieve high irrigation efficiency in all types of irrigation, it is important to be able to control the:
A: Energy and pressure
02: Flow and energy
03: Flow and pressure
Q: To achieve high irrigation efficiency in all types of irrigation, it is important to be able to control the:
A: Flow and energy
01: Energy and pressure
03: Flow and pressure
Q: To achieve high irrigation efficiency in all types of irrigation, it is important to be able to control the:
A: Flow and pressure
Q: A VFD provides soft start and soft stop that helps:
A: Reduce water consumption.
02: Eliminate risk of water hammer.
03: Save up to 20% energy.
Q: A VFD provides soft start and soft stop that helps:
A: Eliminate risk of water hammer.
Q: A VFD provides soft start and soft stop that helps:
A: Save up to 20% energy.
01: Reduce water consumption.
02: Eliminate risk of water hammer.