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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Feedback

To determine performance characteristics of centrifugal pump

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Beginner

Intermediate

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1. What is the relationship between head and flow rate in a centrifugal pump?

a: Head increases proportionally with flow rate Explanation

Explanation

b: Head decreases proportionally with flow rate Explanation

Explanation

c: Head increases with the square of the flow rate Explanation

Explanation

d: Head decreases with the square of the flow rate Explanation

Explanation

2. Which of the following is a typical characteristic of a centrifugal pump's performance curve?

a: Efficiency increases linearly with flow rate Explanation

Explanation

b: Power consumption decreases with increasing flow rate Explanation

Explanation

c: Head decreases with increasing flow rate Explanation

Explanation

d: Flow rate is independent of speed Explanation

Explanation

3. What is the term for the minimum pressure at the pump inlet that prevents cavitation?

a: Static head Explanation

Explanation

b: Dynamic head Explanation

Explanation

c: NPSH Explanation

Explanation

d: Total dynamic head Explanation

Explanation

4. How does increasing the impeller diameter affect the pump's performance?

a: Decreases head and flow rate Explanation

Explanation

b: Increases head and flow rate Explanation

Explanation

c: Increases head but decreases flow rate Explanation

Explanation

d: Decreases head but increases flow rate Explanation

Explanation

5. What is the best way to control the flow rate of a centrifugal pump?

a: By varying the pump speed Explanation

Explanation

b: By throttling the discharge valve Explanation

Explanation

c: By changing the impeller diameter Explanation

Explanation

d: By adding more fluid to the system Explanation

Explanation

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