1
Select the three parameters of most interest in water pumping systems:
3
How is the relationship between these three factors described in an equation?
4
Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
5
Identify the true statement.
6
Identify the false statement.
7
What are the effects of cavitation on pumps?
8
Which of the following is one correct method to avoid cavitation?
Test results
Congratulations. You have passed the test and completed the Basic hydraulics and pump performance
Achieved badges:
01.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, head and energy
01.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, conductivity and head
01.
Q: Select the three parameters of most interest in water pumping systems:
A: Head, turbidity and velocity
02.
Q: Identify the correct formula for calculating pump efficiency.
A: P1×Q/cxH
02.
Q: Identify the correct formula for calculating pump efficiency.
A: HxQ/cxP1
02.
Q: Identify the correct formula for calculating pump efficiency.
A: HxP1/cxQ
03.
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
03.
Q: How is the relationship between these three factors described in an equation?
A: Q = H x P x c
03.
Q: How is the relationship between these three factors described in an equation?
A: P = Q/H x c
04.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Temperature sensors
04.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Signal wire
04.
Q: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
A: Insulation system
05.
Q: Identify the true statement.
A: In deep-well pumps, you should check whether the pressure gauge is installed directly at the pump discharge.
05.
Q: Identify the true statement.
A: Online monitoring equipment does not check if a parameter has changed or exceeded a preset limit.
05.
Q: Identify the true statement.
A: If all the parameters are recorded immediately after the pump has been installed, you can use them as benchmark against future data.
06.
Q: Identify the false statement.
A: Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
06.
Q: Identify the false statement.
A: The MP204 device can protect the pump motor against all possible disturbances that may occur.
06.
Q: Identify the false statement.
A: The only way to avoid sand from entering a pump is through effective filtering before the pump inlet.
07.
Q: What are the effects of cavitation on pumps?
A: Breakage of rotor
07.
Q: What are the effects of cavitation on pumps?
A: Pitting of suction pipe
07.
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing
08.
Q: Which of the following is one correct method to avoid cavitation?
A: Reduce the friction loss in the suction pipe.
08.
Q: Which of the following is one correct method to avoid cavitation?
A: Increase the flow of the pump.
08.
Q: Which of the following is one correct method to avoid cavitation?
A: Lower the elevation of the suction water level.