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diff --git a/2063/CH7/EX7.16/7_16.sce b/2063/CH7/EX7.16/7_16.sce
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+clc
+clear
+//Input data
+P=20;//Power developed by a four stroke diesel engine per cylinder in kW
+N=2000;//Operating speed of the diesel engine in rpm
+s=0.25;//Specific fuel consumption in kh/kW
+p1=180;//Pressure of fuel injected in bar
+d=25;//Distance travelled by crank in degrees
+p2=38;//Pressure in the combustion chamber in bar
+Cd=0.85;//Coefficient of velocity
+A=30;//API in degrees
+
+//Calculations
+T=d/(360*(N/60));//Duration of fuel injection in s
+SG=(141.5/(131.5+A))*10^3;//Specific gravity of fuel
+V=Cd*(2*(p1-p2)*10^5/SG)^(1/2);//Velocity of fuel injection in m/s
+Vf=(s/60)*P/((N/2)*SG);//Volume of fuel injected per cycle in m^3/cycle
+Na=Vf/(V*T);//Nozzle orifice area in m^2
+d=(((4*Na)/3.14)^(1/2))*10^3;//Diameter of the orifice of the fuel injector in mm
+
+//Output
+printf('The diameter of the orifice is %3.4f mm',d)