1
What are the two factors that should be ensured when the total head for a ground water pump is calculated?
2
How many hours will a correctly sized pump run a day to meet the demand?
3
Identify which of the following sentences are true:
4
Which of the following options is true about a centrifugal pump?
5
Which of the following parameters is determined by the amount of water to be applied during the peak period?
6
How do we calculate head requirement from the pump?
Test results
01.
Q: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
A: There is no elevation lift and the drawdown has to be added to the suction lift.
01.
Q: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
A: There is no suction lift. Instead there is static water table and the drawdown has to be added to the elevation lift.
01.
Q: What are the two factors that should be ensured when the total head for a ground water pump is calculated?
A: There is no suction lift and the drawdown has to be deducted from the elevation lift.
02.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 8 hours
02.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 12-18 hours
02.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 24 hours
03.
Q: Identify which of the following sentences are true:
A: Groundwater typically requires more treatment than surface water.
03.
Q: Identify which of the following sentences are true:
A: To improve the filtering function, the borehole diameter must be exactly the same as the casing diameter.
03.
Q: Identify which of the following sentences are true:
A: The drawdown is the difference between the static and the dynamic water level.
04.
Q: Which of the following options is true about a centrifugal pump?
A: If the pump is pumping at a lower flow, it delivers a higher head.
04.
Q: Which of the following options is true about a centrifugal pump?
A: If the pump is pumping at a lower flow, it delivers a lower head.
04.
Q: Which of the following options is true about a centrifugal pump?
A: If the pump is pumping at a higher flow, it delivers a higher head.
05.
Q: Which of the following parameters is determined by the amount of water to be applied during the peak period?
A: The efficiency of the pump
05.
Q: Which of the following parameters is determined by the amount of water to be applied during the peak period?
A: The friction loss in the irrigation system
05.
Q: Which of the following parameters is determined by the amount of water to be applied during the peak period?
A: The minimum size of the pump
06.
Q: How do we calculate head requirement from the pump?
A: Suction lift + static water level + drawdown in the well + pressure head of the application device + friction loss in the pipes
06.
Q: How do we calculate head requirement from the pump?
A: Elevation lift + static water level + drawdown in the well + pressure head of the application device + friction loss in the pipes
06.
Q: How do we calculate head requirement from the pump?
A: Elevation lift + static water level + drawdown in the well + pressure head of the application device - friction loss in the pipes