Question #43 How To: Determine Openings In Shells, Headers, And Dished Heads / 2A1 ASME Code- Questions / By Power Engineering 101 2A1 Question #43 2A1 Solution #43 Part (1/2) 2A1 Solution #43 Part (2/2) Return To Post How To: Determine Openings In Shells, Headers, And Dished Heads