Generation of Electrical Energy
The overall efficiency of thermal power plant is equal to

Rankine cycle efficiency
Bioler efficiency × turbine efficiency × generator efficiency
Regenerative cycle efficiency
Carnot cycle efficiency

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Generation of Electrical Energy
Rankine cycle operating on low pressure limit of p1 and high pressure limit of p2

Has same thermal efficiency as Carnot cycle operating between same pressure limits
Has higher thermal efficiency than the Carnot cycle operating between same pressure limits
May be more or less depending upon the magnitude of p1 and p2
Has lower thermal efficiency than Carnot cycle operating between same pressure limit

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Generation of Electrical Energy
Carnot cycle comprises of

two isothermal processes and three constant pressure processes
two isentropic processes and two constant volume processes
None of these
two isentropic processes and two constant pressure processes

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