Question 1 of 8
Basic

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

Question 2 of 8
Basic

How can friction loss in a system be minimised?

Question 3 of 8
Basic

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

Question 4 of 8
Basic

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

Question 5 of 8
Basic

What are the effects of cavitation on pumps?

Question 6 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 7 of 8
Basic

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

Question 8 of 8
Basic

Identify the false statement.

Question 8 of 8
Basic

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1: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Viscosity
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1: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Velocity
1: Friction loss is dependent on the [xxxxxxxx] of the fluid.
Volume
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2: How can friction loss in a system be minimised?
By increasing the pipe diameter
2: How can friction loss in a system be minimised?
By using 2 smaller pumps instead of one bigger pump
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2: How can friction loss in a system be minimised?
By adding a Tee to the piping system
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3: How is the relationship between these three factors described in an equation?
P = Q x H x c
3: How is the relationship between these three factors described in an equation?
Q = H x P x c
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3: How is the relationship between these three factors described in an equation?
P = Q/H x c
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4: Which of the following parameters is not used for calculating pump efficiency?
Flow
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4: Which of the following parameters is not used for calculating pump efficiency?
Time
4: Which of the following parameters is not used for calculating pump efficiency?
Pressure
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4: Which of the following parameters is not used for calculating pump efficiency?
Power Consumption
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5: What are the effects of cavitation on pumps?
Breakage of rotor
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5: What are the effects of cavitation on pumps?
Pitting of suction pipe
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5: What are the effects of cavitation on pumps?
Pitting of impeller and pump housing
6: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Temperature sensors
6: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Signal wire
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6: Which of the following items are built-in in some motors and can stop the motor if it exceeds a preset temperature:
Insulation system
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7: Identify the reasons for reduction in pump performance from the given options:
Bad power supply
7: Identify the reasons for reduction in pump performance from the given options:
Reduction in size of irrigation zone
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7: Identify the reasons for reduction in pump performance from the given options:
Changes in energy requirements
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8: Identify the false statement.
Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
8: Identify the false statement.
The MP204 device can protect the pump motor against all possible disturbances that may occur.
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8: 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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