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Power Plant Engineering Practice Test: Analysis of Steam Engine
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Analysis of Steam Engine topics include: Steam power plant and its efficiency, rankine and brayton cycle, mean temperature of heat, steam reheating, regeneration, feed water reheaters and deaerator. A steam engine is a heat engine that uses steam to perform mechanical work. The engine works by burning fuel, usually coal, to heat water in a boiler. The steam produced from the heated water is then directed through pipes to a cylinder. The steam pressure in the cylinder moves a piston, which performs mechanical work in the machine.  The steam engine's pushing force can be transformed into... Show more
Power Plant Engineering Practice Test: Analysis of Steam Engine
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25 Questions

1. Which one of the following is an advantage of reheat cycle?
2. What is the most preferable dryness fraction of the exhaust steam?
3. The product of heat rate & efficiency when the heat rate is expressed in kJ/kWh is equal to?
4. Steam is generated in a _____________ boiler at a pressure above the critical point.
5. Why trash rack is used?
6. Which of the following methods can be used to increase efficiency of a Brayton cycle?
7. Steam Rate is the reciprocal of _________
8. The optimum reheat pressure for most of the power plants is how many times of the initial steam pressure?
9. What is the range of Thermal efficiency in the Brayton cycle?
10. In a Rankine Cycle, heat output is obtained from ___________
11. Pelton Wheel Turbine is suited for ____________
12. Mean Temperature of Heat Addition is the ratio of ____________
13. Heat transfer taking place in the turbine is?
14. The compression ratio is the ratio of ____________
15. Steam Power Plants are more popular in electric power generation because ___________
16. Which of these is a disadvantage of open heater?
17. Which of these factors don’t cause Internal Irreversibility of a Rankine cycle?
18. The chemical injected into the feedwater at the suction of the boiler feed pump is?
19. What is the effect of increase in regeneration on steam rate?
20. What is the effect of increasing superheat at constant inlet steam pressure & condenser pressure on mean temperature of heat addition?
21. The output of the boiler heat pump is to?
22. Why is the deaerator not employed in water cooled & moderated nuclear power plant?
23. A Sterling engine uses an energy source whose temperature is 727°C and an energy sink whose temperature is 27°C. How much heat must be added to the engine to produce 1 unit of work?
24. The output from boiler goes to?
25. Reheating of steam _____________