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+////Chapter No 14 Air Standard Cycles
+////Example No 14.12 Page No 317
+///Find cut-off ratio
+//Input Data
+clc;
+clear;
+r=22;              //compression ratio of diesel engine r=v1/v2
+r1=11;             //expansion ratio r1=v4/v3
+gamma1=1.4;
+rho=1.4;
+
+//Calculation
+rho=r/r1;          //cut-off ratio
+//diesel engine air standard efficiency 
+eta=100*((1-(1/r^(gamma1-1)))*(1/gamma1*(rho^(gamma1-1)/(rho-1))));
+
+//Output
+printf('cut-off ratio= %f \n',rho);
+printf('diesel engine air standard efficiency= %f percent \n',eta);