Engineering Thermodynamics
The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that

Rankine cycle is hypothetical
A Rankine cycle receives heat at two places
Heat is supplied to water at temperature below the maximum temperature of the cycle
Carnot cycle can't work with saturated steam

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Engineering Thermodynamics
Select the wrong statement

An Otto cycle consists of two constant volume and two isentropic processes.
A Joule cycle consists of two constant volume and two isentropic processes.
All of these
An Ericsson cycle consists of two constant pressure and two isothermal processes.

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Engineering Thermodynamics
The door of a running refrigerator inside a room was left open. Which of the following statements is correct?

The room will be cooled very slightly
The temperature of the air in room will remain unaffected
The room will be gradually warmed up
The room will be cooled to the temperature inside the refrigerator

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