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Hydraulic Machines Practice Test: Characteristic Curves & Governing of Turbines
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Avg score: 75% Most missed: “What is primary objective of steam turbine governing?”
Characteristic Curves & Governing of Turbines topics include: Constant head curves, turbines governing, constant speed curves and efficient curves. Characteristic curves are plotted from the results of tests performed on a turbine under different working conditions. They help study the turbine's performance under various conditions.  There are three types of characteristic curves in turbines: Main Characteristic Curves or Constant Head Curve Constant Efficiency Curve Constant Speed Curves  Turbine manufacturers supply these curves based on actual tests. The data obtained in testing a... Show more
Hydraulic Machines Practice Test: Characteristic Curves & Governing of Turbines
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25 Questions

1. With the increase in load, Energy in the turbine ________
2. Constant discharge takes place due to _______
3. Which component is necessary for writing the velocity equation?
4. The advantage of nozzle governing is that no regulating pressure is applied.
5. When bypass valve is opened to _______
6. The speed of the turbine in a constant head curve is varied by __________
7. In all the characteristic curves, the overall efficiency is aimed at the maximum value.
8. During the steam turbine governing, what remains a constant?
9. Constant speed curves travel at constant speed when the value is equal to _______
10. Which among the following is not a shape for a curve?
11. In nozzle governing, the flow rate of steam is regulated by _________
12. In nozzle governing, the flow rate of steam is regulated by _________
13. Combination governing involves usage of two or more governing.
14. The main function of nozzle is to __________
15. The inlet passage of water entry is controlled by ________
16. Constant speed curves are determined by the _________
17. When the balancing of the turbine is disturbed, we use ________
18. Which among the following control the flow rate?
19. The main function of nozzle is to __________
20. The flow rate of steam is controlled by regulating the_________
21. What is the purpose of a steam turbine governing?
22. The inlet passage of water entry is controlled by ________
23. When the mechanical speed of the shaft increases beyond 110 percent, we use _________
24. With the increase in load, Energy in the turbine ________
25. Which among the following is not a parameter to determine the efficiency of the turbine?