8. In open feedwater heatera) the extracted steam is allowed to mix with feedwaterb) feedwater flows trough tubes and steam is condensed outsidec) steam flows outside tubes and feedwater insided) steam flows inside tubes and outside inside9. A Carnot cycle is to be designed to attain an efficiency of 0.75. if temperature of hightemperature reservoir is 727°C, then low temperature reservoir will have to bemaintained ata) 23 °Cb) 181°Cc) -23 °Cd) -181 °C10. Why Carnot cycle is not possible practically?11. What is the relation between efficiencies of Rankine cycle and Carnot cycle for thesame pressure ratio (for the same high and low pressures)?a. (Nrankine) = (ncarnot)b. (nRankine) > (ncarmot )c. (Nrankine) < (nCarnot )d. none of the above12. What is the effect of superheated steam on efficiency of Rankine cycle?a. efficiency of Rankine cycle decreases with increase in superheat of the steamb. efficiency of Rankine cycle increases with increase in superheat of the steamc. efficiency of Rankine cycle is not affected by change in superheat of the steamd. none of the above13. In power plant cycles, why water is used as coolant?

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8. In open feedwater heater a) the extracted steam is allowed to mix with feedwater b) feedwater flows trough tubes and steam is condensed outsic c) steam flows outside tubes and feedwater inside d) steam flows inside tubes and outside inside 9. A Carnot cycle is to be designed to attain an efficiency of 0.75.

8. In open feedwater heater a) the extracted steam is allowed to mix with feedwater b) feedwater flows trough tubes and steam is condensed outsic c) steam flows outside tubes and feedwater inside d) steam flows inside tubes and outside inside 9. A Carnot cycle is to be designed to attain an efficiency of 0.75.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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