SSC JE Mechanical 11 Oct 2023 Shift 2 Paper

Question : 110 of 200

Marks: +1, -0

A Carnot cycle operates between two temperatures T1 and T2. The efficiency of the cycle is given by η = (T1 − T2) / T1. Which of the following statements is correct?

The efficiency of the Carnot cycle is always equal to that of any other heat engine operating between the same two temperatures.
The efficiency of the Carnot cycle depends on the working substance used.
The efficiency of the Carnot cycle is always less than that of any other heat engine operating between the same two temperatures.
The efficiency of the Carnot cycle is always greater than that of any other heat engine operating between the same two temperatures.

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