I.D. of 1/4″ schedule 40 pipe is 0.364″. I.D. of a 1/2″ schedule 40 pipe would be ______________ inch? / Fluid Mechanics for Chemical / By admin I.D. of 1/4″ schedule 40 pipe is 0.364″. I.D. of a 1/2″ schedule 40 pipe would be ______________ inch? A. 4.728 B. 0.5C. 0.622 D. 0.474
