Question 1 of 4
Basic

Which of the following options is true about a centrifugal pump?

Question 2 of 4
Basic

How do we calculate head requirement from the pump?

Question 3 of 4
Basic

Which of the following parameters is determined by the amount of water to be applied during the peak period?

Question 4 of 4
Basic

What is the limit of sand in well water as recommended by US EPA and National Water Works Association for flood irrigation?

Question 4 of 4
Basic

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1: Which of the following options is true about a centrifugal pump?
If the pump is pumping at a lower flow, it delivers a higher head.
1: Which of the following options is true about a centrifugal pump?
If the pump is pumping at a lower flow, it delivers a lower head.
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1: Which of the following options is true about a centrifugal pump?
If the pump is pumping at a higher flow, it delivers a higher head.
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2: How do we calculate head requirement from the pump?
Suction lift + static water level + drawdown in the well + pressure head of the application device + friction loss in the pipes
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2: How do we calculate head requirement from the pump?
Elevation lift + static water level + drawdown in the well + pressure head of the application device + friction loss in the pipes
2: How do we calculate head requirement from the pump?
Elevation lift + static water level + drawdown in the well + pressure head of the application device - friction loss in the pipes
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3: Which of the following parameters is determined by the amount of water to be applied during the peak period?
The efficiency of the pump
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3: Which of the following parameters is determined by the amount of water to be applied during the peak period?
The friction loss in the irrigation system
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3: Which of the following parameters is determined by the amount of water to be applied during the peak period?
The minimum size of the pump
4: What is the limit of sand in well water as recommended by US EPA and National Water Works Association for flood irrigation?
10ppm
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4: What is the limit of sand in well water as recommended by US EPA and National Water Works Association for flood irrigation?
15ppm
4: What is the limit of sand in well water as recommended by US EPA and National Water Works Association for flood irrigation?
20ppm
You can find the answer here >