What are the effects of cavitation on pumps?
Which of the following is one correct method to avoid cavitation?
Identify the false statement.
How is the relationship between these three factors described in an equation?
Identify the reasons for reduction in pump performance from the given options:
Which of the following parameters is not used for calculating pump efficiency?
How can friction loss in a system be minimised?
Test results
Congratulations. You have passed the test and completed the 13 - Basic hydraulics and pump performance
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Q: What are the effects of cavitation on pumps?
A: Breakage of rotor
Q: What are the effects of cavitation on pumps?
A: Pitting of suction pipe
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Viscosity
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Velocity
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Volume
Q: Which of the following is one correct method to avoid cavitation?
A: Reduce the friction loss in the suction pipe.
Q: Which of the following is one correct method to avoid cavitation?
A: Increase the flow of the pump.
Q: Which of the following is one correct method to avoid cavitation?
A: Lower the elevation of the suction water level.
Q: Identify the false statement.
A: Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
Q: Identify the false statement.
A: The MP204 device can protect the pump motor against all possible disturbances that may occur.
Q: Identify the false statement.
A: The only way to avoid sand from entering a pump is through effective filtering before the pump inlet.
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
Q: How is the relationship between these three factors described in an equation?
A: Q = H x P x c
Q: How is the relationship between these three factors described in an equation?
A: P = Q/H x c
Q: Identify the reasons for reduction in pump performance from the given options:
A: Bad power supply
Q: Identify the reasons for reduction in pump performance from the given options:
A: Reduction in size of irrigation zone
Q: Identify the reasons for reduction in pump performance from the given options:
A: Changes in energy requirements
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Flow
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Time
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Pressure
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Power Consumption
Q: How can friction loss in a system be minimised?
A: By increasing the pipe diameter
Q: How can friction loss in a system be minimised?
A: By using 2 smaller pumps instead of one bigger pump
Q: How can friction loss in a system be minimised?
A: By adding a Tee to the piping system