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Hydraulic Machines Practice Test: Centrifugal Pumps
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Centrifugal Pumps topics include: Centrifugal pumps and its parts, centrifugal pumps heads and efficiencies, centrifugal pump minimal speed, multistage centrifugal pumps for high heads and discharge, specific speed centrifugal pumps, priming centrifugal pumps, net positive suction head, centrifugal pumps testing and maximum suction lift centrifugal pumps. A centrifugal pump is a mechanical device that uses a rotating impeller to move fluids. The impeller is a series of vanes arranged around a central axis. Fluid enters the impeller along its axis and is cast out by centrifugal force along... Show more
Hydraulic Machines Practice Test: Centrifugal Pumps
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25 Questions

1. When the NPSH is low, it leads to ________
2. Centrifugal pumps are used to transport ________
3. The fluid coming into the centrifugal pump is accelerated by ________
4. Gear pumps are mainly used in chemical installations because they pump ________
5. The inlet passage of water entry is controlled by ________
6. What is purpose of froth in froth pumps?
7. With the increase in the input power, efficiency _______
8. The rotational kinetic energy comes from ______
9. Centrifugal pump works by imparting _______
10. The mechanical energy is developed by the impeller.
11. The point at which piping system controls the flow rate is called ______
12. The point at which the centrifugal pump operates at maximum efficiency is called _______
13. What is the unit of energy head?
14. The energy transferred can be measured by isentropic compression.
15. When the balancing of the turbine is disturbed, we use ________
16. The head added by the pump is a sum of _________
17. The centrifugal pump has varying flow depending on the _________
18. PHE stands for __________
19. Gear pumps are ___________
20. The main function of nozzle is to __________
21. If the cylinder is filled with fuel or air it is said to be ___________
22. The fluid gains _________ while passing through the impeller.
23. What is the shape of the diffuser in the centrifugal pump?
24. The velocity imparted by the impeller is converted into _________
25. Power is most commonly expressed as ________