A study reveals the following steps in the assembly of a truss (small triangle 0f 3 small pieces within a large triangle of 3 larger pieces):

forklift delivers 2x4 pieces of pine from outside storage area (20 min)

bandsaw operator cuts 6 pieces to appropriate length (10 min)

assembler #1 gets 3 short pieces, bolts small triangle (5 min)

assembler #2 gets 3 long pieces, bolts large triangle (10 min)

assembler #3 gets one of each triangle and fastens into truss (20 min)

supervisor inspects complete truss and prepares for delivery (5 min)

a. Complete a flow process chart of the operation.

b. What is the %idle time and production for an unbalanced, linear assembly line?
c. Balance the assembly line using appropriate workstations, given that the company desires to increase production to 6 beam/hour. What the %idle time and production now?