SSC JE Mechanical Engineering 2017 Set 3 Paper

Question : 119 of 200

Marks: +1, -0

Which of the following is the correct expression for the maximum thermal efficiency (η) of system undergoing a reversible power cycle while operating between thermal reservoirs at temperature Tc and Th

$\η = {Tc}/{Th}$
$\η = {Th}/{Tc-1}$
$\η = 1-{Tc}/{Th }$
$\η = 1$

Validate

Solution:

\η = 1-{Tc}/{Th }

maximum thermal efficiency is given by Carnot efficiency.

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