1
Identify the factors that are not considered for calculating the total pump head requirements?
2
What is the limit of sand in well water as recommended by US EPA and National Water Works Association?
3
How many hours will a correctly sized pump run a day to meet the demand?
4
How do we calculate head requirement from the pump?
5
What determines the minimum flow of a pump?
6
Which of the following options is true about a centrifugal pump?
Test results
01.
Q: Identify the factors that are not considered for calculating the total pump head requirements?
A: Friction losses
01.
Q: Identify the factors that are not considered for calculating the total pump head requirements?
A: Elevation lift
01.
Q: Identify the factors that are not considered for calculating the total pump head requirements?
A: Pump flow
02.
Q: What is the limit of sand in well water as recommended by US EPA and National Water Works Association?
A: 10ppm
02.
Q: What is the limit of sand in well water as recommended by US EPA and National Water Works Association?
A: 15ppm
02.
Q: What is the limit of sand in well water as recommended by US EPA and National Water Works Association?
A: 20ppm
03.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 8 hours
03.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 12-18 hours
03.
Q: How many hours will a correctly sized pump run a day to meet the demand?
A: 24 hours
04.
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
04.
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
04.
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
05.
Q: What determines the minimum flow of a pump?
A: The amount of water that needs to be applied to the crops during peak periods.
05.
Q: What determines the minimum flow of a pump?
A: The type of soil in the field.
05.
Q: What determines the minimum flow of a pump?
A: The cost of power for the pump.
06.
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.
06.
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.
06.
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.