1
Identify the false statement.
4
How is the relationship between these three factors described in an equation?
5
Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
6
Identify the reasons for reduction in pump performance from the given options:
7
Select the three parameters of most interest in water pumping systems:
8
What are the effects of cavitation on pumps?
Test results
Congratulations. You have passed the test and completed the Basic hydraulics and pump performance
Achieved badges:
01.
Q: Identify the false statement.
A: Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
01.
Q: Identify the false statement.
A: The MP204 device can protect the pump motor against all possible disturbances that may occur.
01.
Q: Identify the false statement.
A: The only way to avoid sand from entering a pump is through effective filtering before the pump inlet.
02.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Viscosity
02.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Velocity
02.
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Volume
03.
Q: Identify the correct formula for calculating pump efficiency.
A: P1×Q/cxH
03.
Q: Identify the correct formula for calculating pump efficiency.
A: HxQ/cxP1
03.
Q: Identify the correct formula for calculating pump efficiency.
A: HxP1/cxQ
04.
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
04.
Q: How is the relationship between these three factors described in an equation?
A: Q = H x P x c
04.
Q: How is the relationship between these three factors described in an equation?
A: P = Q/H x c
05.
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
05.
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
05.
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
06.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Bad power supply
06.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Reduction in size of irrigation zone
06.
Q: Identify the reasons for reduction in pump performance from the given options:
A: Changes in energy requirements
07.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, head and energy
07.
Q: Select the three parameters of most interest in water pumping systems:
A: Flow, conductivity and head
07.
Q: Select the three parameters of most interest in water pumping systems:
A: Head, turbidity and velocity
08.
Q: What are the effects of cavitation on pumps?
A: Breakage of rotor
08.
Q: What are the effects of cavitation on pumps?
A: Pitting of suction pipe
08.
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing