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Power Plant Engineering Practice Test: Basic Thermodynamic Cycles
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Avg score: 80% Most missed: “Which of these has the most simple operation?”
Basic Thermodynamic Cycles topics include: Combined cycle power generation and its advantages, brayton rankine combined plants. Thermodynamic cycles are sequences of processes that start and end in the same state. Some common types of thermodynamic cycles include: Carnot cycle: A theoretical cycle that includes four stages before returning to its original state. The four stages are isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression. Rankine cycle: A cycle that uses heat from a fuel source to create mechanical or electrical energy. The working... Show more
Power Plant Engineering Practice Test: Basic Thermodynamic Cycles
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25 Questions

1. Which of these has the most simple operation?
2. With an increase in the combined cycle pressure ratio, the efficiency of the bottoming cycle?
3. Gas turbines with intercooling, regeneration & reheat are more suitable for combined cycles.
4. To improve the efficiency of the gas turbines, which among these are used?
5. Exergic __________ is a measure of the perfectness of a thermal system.
6. The values of dry solid fuel ratio are highest in?
7. Fuel is burnt partially in the Combustion Chamber & partially in the __________
8. Which among these plants are most efficient?
9. The amount of water required as coolant for a combined cycle plant is?
10. The overall plant efficiencies in case of a combined cycle power generation is?
11. What is the effect of Supplementary Firing on exhaust gas temperature?
12. What % is the investment cost in Conventional steam power plant more than those in the combined cycle plants?
13. Efficiency of Natural gas fired Combined cycle plants is more than that of coal-fired plants.
14. What would be the temperature of the gas in the combustion chamber?
15. In the Brayton Rankine combined plant in series, the efficiency of the bottoming plant is?
16. What does HRSG stand for?
17. Installations in stages is possible in Combined Cycle Plants.
18. Choice of a gas turbine depends most on which of these factors?
19. If p and q are the efficiencies of a Brayton & Rankine cycles respectively in a Brayton-Rankine combined plant, the efficiency n of a combined plant is?
20. Combustion in a Combined cycle plant has ______ environmental impact.
21. The efficiency of the open cycle gas plant is quite low. Why?
22. Cogeneration of heat & electricity is possible in a Combined cycle plants.
23. The maximum work attainable as the system comes in equilibrium with surrounding is called?
24. Which of these is a working fluid in the topping plant of a Brayton-Rankine combined plant?
25. What is meant by inter cooling?