Question 1 of 6
Basic

How do we calculate head requirement from the pump?

Question 2 of 6
Basic

Identify which of the following sentences are true:

Question 3 of 6
Basic

What determines the minimum flow of a pump?

Question 4 of 6
Basic

Identify the factors that are not considered for calculating the total pump head requirements?

Question 5 of 6
Basic

What are the two factors that should be ensured when the total head for a ground water pump is calculated?

Question 6 of 6
Basic

How many hours will a correctly sized pump run a day to meet the demand?

Question 6 of 6
Basic

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1: 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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1: 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
1: 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
You can find the answer here >
2: Identify which of the following sentences are true:
Groundwater typically requires more treatment than surface water.
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2: Identify which of the following sentences are true:
To improve the filtering function, the borehole diameter must be exactly the same as the casing diameter.
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2: Identify which of the following sentences are true:
The drawdown is the difference between the static and the dynamic water level.
3: What determines the minimum flow of a pump?
The amount of water that needs to be applied to the crops during peak periods.
3: What determines the minimum flow of a pump?
The type of soil in the field.
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3: What determines the minimum flow of a pump?
The cost of power for the pump.
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4: Identify the factors that are not considered for calculating the total pump head requirements?
Friction losses
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4: Identify the factors that are not considered for calculating the total pump head requirements?
Elevation lift
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4: Identify the factors that are not considered for calculating the total pump head requirements?
Pump flow
5: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
There is no elevation lift and the drawdown has to be added to the suction lift.
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5: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
There is no suction lift. Instead there is static water table and the drawdown has to be added to the elevation lift.
5: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
There is no suction lift and the drawdown has to be deducted from the elevation lift.
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6: How many hours will a correctly sized pump run a day to meet the demand?
8 hours
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6: How many hours will a correctly sized pump run a day to meet the demand?
12-18 hours
6: How many hours will a correctly sized pump run a day to meet the demand?
24 hours
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