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Hydraulic Machines Practice Test: Turbines
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Avg score: 87% Most missed: “A hydraulic coupling belongs to the category of________”
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. Hydraulic Machines fall under the category :
2. _____________ is ratio of volume of water actually striking the runner and volume of water supplied to turbine.
3. A hydraulic coupling belongs to the category of________
4. The expression for maximum hydraulic efficiency of pelton turbine is given by?
5. ____________ is an inward radial flow reaction turbine.
6. The difference between gross head and friction losses is ____________
7. The electric power which is obtained from hydraulic energy____________
8. Among the following which turbine requires more head?
9. Specific speed of reaction turbine is between?
10. Which principle is used in Hydraulic Turbines?
11. How many types of Reaction turbines are there?
12. Hydraulic turbines are classified based on ____________
13. ______________ is a axial flow reaction turbines, if vanes are fixed to hub of turbine.
14. Buckets and blades used in a turbine are used to:
15. Pipes of largest diameter which carry water from reservoir to the turbines is known as_____________
16. The important type of axial flow reaction turbines are ______________
17. _____________ is difference between head race and tail race.
18. Hydraulic energy is converted into another form of energy by hydraulic machines. What form of energy is that?
19. In reaction turbine hydraulic efficiency is______________
20. Among the following which turbine has highest efficiency?
21. Under what head is Pelton turbine operated?
22. The ratio of volume available at shaft of turbine and power supplied at the inlet of the turbine
23. In the expression for overall efficiency of turbine, which is p/(k*g*q*h), where “k” is known as ___________
24. High specific speed of turbine implies that it is ___________
25. If water flows in radial direction at inlet of runner and leaves axially at outlet then turbine is named as ____________