Question 2 A small electronic appliance is to be produced on a single model assembly line. The work content of assembling the product has been reduced to the work elements listed in table 1 below. The line is to be balanced for 375,000 appliances per year The line will operate 50 weeks per year, 3 shifts per day, 7 days per week, 7 hours per Shift (day & night). The manning level will be one worker per station. If the uptime efficiency for the line is estimated to be 85% and the average reposition time loss per system is 6.0 seconds. Determine the: a) hourly production rate (Rp). b) cycle time (Tc). c) theoretical minimum number of stations (w*) required on the line d) service time (Ts) to which the line must be balanced. 4 No. Work Element Description 1 Placed frame in work holder and clamp 2 Assemble plug, grommet to power cord 3 Assemble brackets to frame Wire power cord to motor 5 Wire power to switch 6 Assemble mechanism plate to bracket 7 Assemble blade to bracket Assemble motor to brackets 9 Align blade and attach to brackets 10 Assemble switch to motor brackets 11 Attach cover, inspect and test 12 Place in tote pan for packing TEK (min.) Precedence 0.25 0.47 0.35 1 0.16 1,2 0.35 2 0.16 3 0.37 3 0.62 3,4 0.2 6,7,8 0.39 5,8 0.55 9, 10 0.14 8 Table 1 e) Draw the precedence diagram for the assembling operation in table above. 1) Select and use an appropriate method to balance the single model assembly line problem in part (e) above, specify the method used. g) Identify the bottleneck station. h) Calculate the line balance efficiency, Es based on your result in parte