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Question 1 of 8
Basic
Identify the false statement.
Question 2 of 8
Basic
Identify the true statement.
Question 3 of 8
Basic
Select the three parameters of most interest in water pumping systems:
Question 4 of 8
Basic
What causes cavitation?
Question 5 of 8
Basic
Which of the following is one correct method to avoid cavitation?
Question 6 of 8
Basic
Identify the reasons for reduction in pump performance from the given options:
Question 7 of 8
Basic
How is the relationship between these three factors described in an equation?
Question 8 of 8
Basic
Friction loss is dependent on the [xxxxxxxx] of the fluid.
Question 8 of 8
Basic
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1: Identify the false statement.
Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
1: Identify the false statement.
The MP204 device can protect the pump motor against all possible disturbances that may occur.
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1: Identify the false statement.
The only way to avoid sand from entering a pump is through effective filtering before the pump inlet.
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2: Identify the true statement.
In deep-well pumps, you should check whether the pressure gauge is installed directly at the pump discharge.
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2: Identify the true statement.
Online monitoring equipment does not check if a parameter has changed or exceeded a preset limit.
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2: Identify the true statement.
If all the parameters are recorded immediately after the pump has been installed, you can use them as benchmark against future data.
3: Select the three parameters of most interest in water pumping systems:
Flow, head and energy
3: Select the three parameters of most interest in water pumping systems:
Flow, conductivity and head
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3: Select the three parameters of most interest in water pumping systems:
Head, turbidity and velocity
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4: What causes cavitation?
Cavitation occurs when water changes its state from vapour to water at low pressure.
4: What causes cavitation?
Cavitation occurs when water boils at 100°C and changes its state from water to vapour at normal atmospheric pressure.
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4: What causes cavitation?
Cavitation occurs when water flows through a pipe and a valve is closed quickly at a low atmospheric pressure
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5: Which of the following is one correct method to avoid cavitation?
Reduce the friction loss in the suction pipe.
5: Which of the following is one correct method to avoid cavitation?
Increase the flow of the pump.
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5: Which of the following is one correct method to avoid cavitation?
Lower the elevation of the suction water level.
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6: Identify the reasons for reduction in pump performance from the given options:
Bad power supply
6: Identify the reasons for reduction in pump performance from the given options:
Reduction in size of irrigation zone
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6: Identify the reasons for reduction in pump performance from the given options:
Changes in energy requirements
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7: How is the relationship between these three factors described in an equation?
P = Q x H x c
7: How is the relationship between these three factors described in an equation?
Q = H x P x c
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7: How is the relationship between these three factors described in an equation?
P = Q/H x c
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8: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Viscosity
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8: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Velocity
8: Friction loss is dependent on the [xxxxxxxx] of the fluid.