If p1, is the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Diameter of L.P. cylinder and D2 = Diameter of H.P. cylinder)

Answer: Option C

If p₁, is the pressure of air entering the L.P. cylinder and p₂ is the pressure of air leaving the L.P. cylinder (or inter-cooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by $$\frac{{\text{D}}_1}{{\text{D}}_2}=\frac{{\text{p}}_2}{{\text{p}}_1}$$
Where,
D₁ = Diameter of L.P. cylinder,
D₂ = Diameter of H.P. cylinder