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Steam and Gas Turbines Practice Test: Anatomy, Characteristics and Functioning
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Avg score: 58% Most missed: “__________ is also used to direct the working fluid.”
Steam and Gas Turbines Anatomy, Characteristics and Functioning topics include: Closed cycle, nozzle design, shock wave, position angles, types of steam, turbine flow passage design, energy distribution, cascade principle, design calculations for impulse and multistaged turbine flow passages, blade, bending and disk stresses, shrouding and lacing wires and other metallurgical considerations. Gas turbines and steam turbines have different main parts and working principles: Gas turbines: Use hot, compressed gas or a mixture of gases as a working fluid. They consist of a compressor, combustion... Show more
Steam and Gas Turbines Practice Test: Anatomy, Characteristics and Functioning
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25 Questions

1. Coefficient of discharge of Nozzle is _______
2. Corrosion and Erosion takes place if dryness factor of steam is __________ in last stage.
3. At vena contracta the velocity is _________ and pressure is ___________
4. For an airfoil fluid velocity will be ______ on upper surface when compared to lower surface.
5. Best velocity ratio for four row impulse turbine is ________
6. In rocket engine the flow in the throat of the nozzle is __________
7. Coefficient of discharge is the ____________
8. Efficiency of the four row impulse turbine with a velocity ratio of one seventh is ______
9. For simple radial equilibrium it is assumed that ______________
10. ML-1 Nuclear reactor works under ___________
11. At low temperature super critical CO2 closed cycle gas turbine has ________ efficiency when compared to helium closed cycle gas turbine.
12. Velocity ratio is directly proportional to square of velocity.
13. When mach number is greater than one the flow is ________
14. Centrifugal stress is a ________
15. Coefficient of contraction is the__________
16. ML-1 nuclear reactor uses ________________
17. Pressure ratios below 20 are used in _____________ engines.
18. High stresses in rotating disks are caused due to _______
19. Energy losses in gas turbines are __________
20. For single stage impulse turbine optimum sigma value lies between ____________
21. Increase in angle of attack can be done by ________
22. Coefficient of discharge (Cd) can be written as Cd=1/K(0.5).
23. At high pressure super critical CO2 closed cycle gas turbine has ____________ efficiency when compared to helium closed cycle gas turbine.
24. In velocity compounded turbines flow passage is from ____________
25. When divergent section is added _________