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Hydraulic Machines Practice Test: Turbines
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Turbines topics include: Turbines, turbine heads, turbine efficiencies and hydraulic turbines classification. A turbine is a mechanical device that converts the energy of a fluid flow into useful work. When combined with a generator, the work produced by a turbine can be used to generate electrical power. Turbines work by passing a fluid through a system of stationary passages or vanes, alternating with passages with finlike blades attached to a rotor. The force of the fluid on the blades spins the rotor shaft of a generator, which then converts the mechanical energy of the rotor into... Show more
Hydraulic Machines Practice Test: Turbines
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25 Questions

1. Among the following which turbine requires more head?
2. _____________ is ratio of volume of water actually striking the runner and volume of water supplied to turbine.
3. Pelton turbine is operated under_________
4. Hydraulic turbines are classified based on ____________
5. Under what head is Pelton turbine operated?
6. In a reaction turbine, the draft tube is used to _________
7. To obtain maximum hydraulic efficiency of pelton turbine, blade velocity should be ___________ Times the inlet velocity of jet.
8. Impulse turbine and reaction turbine are classified based on?
9. Francis and Kaplan turbines are known as _______
10. Kaplan turbine is operated under __________
11. In hydraulic turbines, inlet energy is greater than the outlet energy.
12. The turbine is preferred for 0 to 25 m head of water?
13. Into how many types can you classify turbines on basis of head at inlet?
14. The expression for maximum hydraulic efficiency of pelton turbine is given by?
15. Which kind of turbine is a Pelton Wheel turbine?
16. IN what type of turbine water enters in radial direction and leaves axial direction?
17. High specific speed of turbine implies that it is ___________
18. Impulse turbine is generally fitted at ______________
19. The product of mechanical efficiency and hydraulic efficiency is known as?
20. Pipes of largest diameter which carry water from reservoir to the turbines is known as_____________
21. Which type of turbine is a Francis Turbine?
22. The overall efficiency of a reaction turbine is the ratio of
23. Low specific speed, high specific speed and medium specific speed are classified based on ____________
24. Among the following which turbine has least efficiency?
25. The ratio of volume available at shaft of turbine and power supplied at the inlet of the turbine