Question 1 of 8
Basic

Identify the reasons for reduction in pump performance from the given options:

Question 2 of 8
Basic

How is the relationship between these three factors described in an equation?

Question 3 of 8
Basic

What are the effects of cavitation on pumps?

Question 4 of 8
Basic

Identify the correct formula for calculating pump efficiency.

Question 5 of 8
Basic

Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:

Question 6 of 8
Basic

Which of the following parameters is not used for calculating pump efficiency?

Question 7 of 8
Basic

Friction loss is dependent on the [xxxxxxxx] of the fluid.

Question 8 of 8
Basic

What causes cavitation?

Question 8 of 8
Basic

Happy with your answers?

Submit your current answers and get the final test result.

Test results

Congratulations. You have passed the test and completed the 13 - Basic hydraulics and pump performance
Sorry. You did not pass the 13 - Basic hydraulics and pump performance test this time
Achieved badges:
How would you rate this course?
1: Identify the reasons for reduction in pump performance from the given options:
Bad power supply
1: Identify the reasons for reduction in pump performance from the given options:
Reduction in size of irrigation zone
You can find the answer here >
1: Identify the reasons for reduction in pump performance from the given options:
Changes in energy requirements
You can find the answer here >
2: How is the relationship between these three factors described in an equation?
P = Q x H x c
2: How is the relationship between these three factors described in an equation?
Q = H x P x c
You can find the answer here >
2: How is the relationship between these three factors described in an equation?
P = Q/H x c
You can find the answer here >
3: What are the effects of cavitation on pumps?
Breakage of rotor
You can find the answer here >
3: What are the effects of cavitation on pumps?
Pitting of suction pipe
You can find the answer here >
3: What are the effects of cavitation on pumps?
Pitting of impeller and pump housing
4: Identify the correct formula for calculating pump efficiency.
(P1 × Q)/(c × H)
You can find the answer here >
4: Identify the correct formula for calculating pump efficiency.
(p x H × Q)/(c × P1)
4: Identify the correct formula for calculating pump efficiency.
(H × P1)/(c × Q)
You can find the answer here >
5: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Temperature sensors
5: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Signal wire
You can find the answer here >
5: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Insulation system
You can find the answer here >
6: Which of the following parameters is not used for calculating pump efficiency?
Flow
You can find the answer here >
6: Which of the following parameters is not used for calculating pump efficiency?
Time
6: Which of the following parameters is not used for calculating pump efficiency?
Pressure
You can find the answer here >
6: Which of the following parameters is not used for calculating pump efficiency?
Power Consumption
You can find the answer here >
7: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Viscosity
You can find the answer here >
7: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Velocity
7: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Volume
You can find the answer here >
8: What causes cavitation?
Cavitation occurs when water changes its state from vapour to water at low pressure.
8: What causes cavitation?
Cavitation occurs when water boils at 100°C and changes its state from water to vapour at normal atmospheric pressure.
You can find the answer here >
8: What causes cavitation?
Cavitation occurs when water flows through a pipe and a valve is closed quickly at a low atmospheric pressure
You can find the answer here >