Refer to the figure with cast iron no-hub 1/16″ bends. The set back is 4″; the fittings have a 4″ makeup. What is the length of pipe required at “B”? Round off the answer to the closest 1/8″.

Refer to the figure with cast iron no-hub 1/16″ bends. The set back is 4″; the fittings have a 4″ makeup. What is the length of pipe required at “B”? Round off the answer to the closest 1/8″.