1
Identify the reasons for reduction in pump performance from the given options:
2
What are the effects of cavitation on pumps?
3
Identify the true statement.
4
Which of the following parameters is not used for calculating pump efficiency?
5
How is the relationship between these three factors described in an equation?
7
What causes cavitation?
8
Select the three parameters of most interest in water pumping systems:
Test results
Congratulations. You have passed the test and completed the Basic hydraulics and pump performance
Achieved badges:
01.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Bad power supply
01.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Reduction in size of irrigation zone
01.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Changes in energy requirements
02.
Q: What are the effects of cavitation on pumps?
A: Breakage of rotor
02.
Q: What are the effects of cavitation on pumps?
A: Pitting of suction pipe
02.
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing
03.
Q: Identify the true statement.
A: In deep-well pumps, you should check whether the pressure gauge is installed directly at the pump discharge.
03.
Q: Identify the true statement.
A: Online monitoring equipment does not check if a parameter has changed or exceeded a preset limit.
03.
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.
04.
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Flow
04.
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Time
04.
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Pressure
04.
Q: Which of the following parameters is not used for calculating pump efficiency?
A: Power Consumption
05.
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
05.
Q: How is the relationship between these three factors described in an equation?
A: Q = H x P x c
05.
Q: How is the relationship between these three factors described in an equation?
A: P = Q/H x c
06.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Viscosity
06.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Velocity
06.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Volume
07.
Q: What causes cavitation?
A: Cavitation occurs when water changes its state from vapour to water at low pressure.
07.
Q: What causes cavitation?
A: Cavitation occurs when water boils at 100°C and changes its state from water to vapour at normal atmospheric pressure.
07.
Q: What causes cavitation?
A: Cavitation occurs when water flows through a pipe and a valve is closed quickly at a low atmospheric pressure
08.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, head and energy
08.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, conductivity and head
08.
Q: Select the three parameters of most interest in water pumping systems:
A: Head, turbidity and velocity