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Question: 01 4.22 The table below lists the work elements in minutes to be performed on assembly line with precedence requirements. Annual demand is 60000
Question: 01 4.22 The table below lists the work elements in minutes to be performed on assembly line with precedence requirements. Annual demand is 60000 units. The line will operate on shift (2000 hr/yr) Line efficiency is expected 95% and repositioning time is 6 sec. The table below defines the precedence relationships and element times for a new model toy. (a) Construct the precedence diagram for this job. (b) If the ideal cycle time 1.1 min. repositioning time 0.1 min, and uptime proportion is assumed to be 1.0, what is the theoretical minimum number of workstations required to minimize the balance delay under the assumption that there will be one worker per station? (c) Use the largest candidate rule to assign work elements to stations. (d) Compute the balance delay for your solution Work element 7, (min) Immediate predecessors 1 0.5 2 0.3 3 0.8 4 1.1 1,2 5 0.6 2 6 0.2 7 0.7 4 8 10 5 1.2 5 9 10 0.4 6 1 0.9 7 12 0.1 8,9 13 1.3 10,11,12 Question: 01 4.22 The table below lists the work elements in minutes to be performed on assembly line with precedence requirements. Annual demand is 60000 units. The line will operate on shift (2000 hr/yr) Line efficiency is expected 95% and repositioning time is 6 sec. The table below defines the precedence relationships and element times for a new model toy. (a) Construct the precedence diagram for this job. (b) If the ideal cycle time 1.1 min. repositioning time 0.1 min, and uptime proportion is assumed to be 1.0, what is the theoretical minimum number of workstations required to minimize the balance delay under the assumption that there will be one worker per station? (c) Use the largest candidate rule to assign work elements to stations. (d) Compute the balance delay for your solution Work element 7, (min) Immediate predecessors 1 0.5 2 0.3 3 0.8 4 1.1 1,2 5 0.6 2 6 0.2 7 0.7 4 8 10 5 1.2 5 9 10 0.4 6 1 0.9 7 12 0.1 8,9 13 1.3 10,11,12
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