Question Bank: Important Short Questions

II. Answer the following in one or two sentences:

1. What is a pump?

2. What do you mean by pumping?

3. Mention any two important uses of pumps.

4. What is the function of non-return valve in a reciprocating pump?

5. Pump industry attaches more emphasis on high reliability than on efficiency. Why?

6.When can the slip, in a reciprocating pump, be negative?

7. Name the different types of casings for the impeller of a centrifugal pump.

 8. Under what headings the centrifugal pumps are classified?

9. How do you classify pumps?

10. Explain the function of spiral casing for a centrifugal pump.

11. Define positive displacement pump. Give an example.

12. Define rotor dynamic pump. Give an example

13. Define the terms: Reciprocating pump, Centrifugal pump, Priming and NPSH. 14. State any two applications of reciprocating pumps.

 15. How do you classify reciprocating pumps?

16. Define the term: Specific speed of a centrifugal pump.

17. Write the equation for the discharge through a single acting reciprocating pump.

 18. Name the types of impellers used in centrifugal pumps

19. Why is priming necessary in a centrifugal pump?