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Question 1 of 8
Basic
How can friction loss in a system be minimised?
Question 2 of 8
Basic
Which of the following parameters is not used for calculating pump efficiency?
Question 3 of 8
Basic
Which of the following is one correct method to avoid cavitation?
Question 4 of 8
Basic
Identify the reasons for reduction in pump performance from the given options:
Question 5 of 8
Basic
How is the relationship between these three factors described in an equation?
Question 6 of 8
Basic
Identify the false statement.
Question 7 of 8
Basic
What are the effects of cavitation on pumps?
Question 8 of 8
Basic
Identify the correct formula for calculating pump efficiency.
Question 8 of 8
Basic
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1: How can friction loss in a system be minimised?
By increasing the pipe diameter
1: How can friction loss in a system be minimised?
By using 2 smaller pumps instead of one bigger pump
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1: How can friction loss in a system be minimised?
By adding a Tee to the piping system
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2: Which of the following parameters is not used for calculating pump efficiency?
2: Which of the following parameters is not used for calculating pump efficiency?
Time
2: Which of the following parameters is not used for calculating pump efficiency?
Pressure
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2: Which of the following parameters is not used for calculating pump efficiency?
Power Consumption
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3: Which of the following is one correct method to avoid cavitation?
Reduce the friction loss in the suction pipe.
3: Which of the following is one correct method to avoid cavitation?
Increase the flow of the pump.
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3: Which of the following is one correct method to avoid cavitation?
Lower the elevation of the suction water level.
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4: Identify the reasons for reduction in pump performance from the given options:
Bad power supply
4: Identify the reasons for reduction in pump performance from the given options:
Reduction in size of irrigation zone
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4: Identify the reasons for reduction in pump performance from the given options:
Changes in energy requirements
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5: How is the relationship between these three factors described in an equation?
P = Q x H x c
5: How is the relationship between these three factors described in an equation?
Q = H x P x c
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5: How is the relationship between these three factors described in an equation?
P = Q/H x c
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6: Identify the false statement.
Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
6: Identify the false statement.
The MP204 device can protect the pump motor against all possible disturbances that may occur.
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6: Identify the false statement.
The only way to avoid sand from entering a pump is through effective filtering before the pump inlet.
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7: What are the effects of cavitation on pumps?
Breakage of rotor
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7: What are the effects of cavitation on pumps?
Pitting of suction pipe
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7: What are the effects of cavitation on pumps?
Pitting of impeller and pump housing
8: Identify the correct formula for calculating pump efficiency.
(P1 × Q)/(c × H)
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8: Identify the correct formula for calculating pump efficiency.
(p x H × Q)/(c × P1)
8: Identify the correct formula for calculating pump efficiency.
(H × P1)/(c × Q)
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