8 questions Basic

ECADEMY test

13 - Basic hydraulics and pump performance

This course test contains 8 questions and can be retaken at any time.

You must answer all questions correctly to pass the test and complete the course.

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Question 1 of 8 Basic

What are the effects of cavitation on pumps?

Question 3 of 8 Basic

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

Question 5 of 8 Basic

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

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 correct formula for calculating pump efficiency.

Question 8 of 8 Basic

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

Question 8 of 8 Basic

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Correct
Q: What are the effects of cavitation on pumps?
A: Pitting of impeller and pump housing
Correct
Q: Identify the false statement.
A: Cavitation can occur when water is flowing in a pipe and a valve is closed too quickly.
Correct
Q: How is the relationship between these three factors described in an equation?
A: P = Q x H x c
Correct
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.
Correct
Q: Friction loss is dependent on the [xxxxxxxx] of the fluid.
A: Velocity
Correct
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
Correct
Q: Identify the correct formula for calculating pump efficiency.
A: (p x H × Q)/(367 × P1)
Correct
Q: Identify the reasons for reduction in pump performance from the given options:
A: Bad power supply