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Steam and Gas Turbines Practice Test: Turbine Blade Profile
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Avg score: 56% • Most missed: “In vortex fluid flow velocity is ______________ to the distance from the axis li…”
Turbine Blade Profile topics include: Turbine, impulse and reaction blade profiles, blade entrance and exit angles, losses and geometry of impulse blade profiles and passages, gauging and pitch and free and forced vertex. Steam turbine blades are critical components in power plants. They convert the linear motion of high temperature and high pressure steam into a rotary motion of the turbine shaft.  Here are some things to know about turbine blade profiles: The leading edge is where the gas flow enters the profile while the trailing edge is where the gas leaves the profile. The specific... Show more
Steam and Gas Turbines Practice Test: Turbine Blade Profile
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25 Questions

1. In reaction turbines a pressure drop occurs between rotors and stator.
2. Ram Air turbine generates ________ from air stream.
3. Blade entrance angle is measure for __________
4. Disc friction loss is due to ___________
5. In forced vortex the total head _______ with radius.
6. Steam velocity graph is same for both reaction and impulse turbines.
7. For radial equilibrium flow radial component must be _______ along the radial direction of flow.
8. In reaction turbine direction of fluid flow is changed drastically.
9. Velocity coefficient can be applied for ___________ flow passage.
10. Blade profile losses for a diffuser blade depends on ____________
11. Ratio of actual velocity to velocity of case lossless flow is called as _______
12. Losses occurred at gap between glands are called as _________
13. Ram Air turbine can be connected to hydraulic pump.
14. When pressure drop is in stages then that turbine is called as ________
15. In vortex region flow rotates perpendicular to the axis line.
16. In reaction turbine nozzle directs the ___________ of steam towards the blades.
17. For forced vortex external torque is to be supplied continuously.
18. Steam is directed towards rotor by _________
19. Radial equilibrium theory assumes that flow is in equilibrium before and after the fluid entering the blade.
20. Reaction turbine blades are _____________
21. Blade profile losses are ____________ losses of the stages at turbomachine.
22. Blade exit angle is a measure for _________
23. Angle made by the relative velocity vector entering the fixed blades to the horizontal line is called as ____________
24. Vorticity is _______ in the core region.
25. Maximum chamber location is represented by _______

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