SSC JE Mechanical Engineering 2014 Set 2 Paper

Question : 110 of 200

Marks: +1, -0

For maximum work output in a two stage expansion gas turbine with perfect, the intermediate pressure (P) has the following relationship with maximum pressure

(P_1 )

and minimum pressure

(P_2 )

of the cycle :

$P=√{{P_1+P_2}/ {P_1+P_2}}$
$P=√{{P_1 P_2} }$
$P= ({{P_1/ P_2} })^{1 /2}$
$P= ({{P_1+P_2} /4})^{1 /2}$

Validate

Solution:

For maximum work output in a two stage expansion gas turbine with perfect intercooling.
the intermediate pressure

P=√{{P_1 P_2} }

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