1.What is the relation between the deflection angle and central angle ? Is the deflection = half of the central ?? what is the relation ?
2.The concentration of CO2 is 400ppm what is the equivalent concentration in ug/m^3 at temperature of 22C & pressure of 103.198 kPa.
3.Calculate the chord lenght between stations 75.00 and 75.75 on a circular curve with a Da = 5.5 degrees (arc definition) ? Da is degree of curve not deflection angle.