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Q6. The process of interest consists of 3 elements working consecutively. Operator is standing during the work. Their normal time data for the thickness from 4 to 23 cm were constructed as; Element 1 Operator work only; Normal time is constant at 3 min/batch (4 pieces per batch) Element 2 Machine work only: Normal time data is plotted as in the given graph. 70 60 40 Normal Time (sec/pc) 30 20 10 0 0 20 25 10 15 Thickness (cm) Element 3 Operator work only Normal time is constant at 0.5 minutes/pc. 6.1 What is the Normal time of element#2 for 24 cm-thick product? 6.2 What is the Standard time of element#1 for 10 cm-thick product? 6.3 The normal time data for producing 6 mm-thick product are concluded as in the given table. Normal time for 6 mm-thick production Element 1 2 3 Normal time 3 min/batch 50 sec/pc 30 sec/pc 6.3.1 Determine (a) the total normal time of the inside work and (b) machine control time of this production. 6.3.2 What will be the standard time (sec/pc) for producing 6 mm-thick product? Q7. The production line of interest consists of 4 consecutive working stations (one operator/station). The work elements and their standard times (seconds/piece) used in each station are in the table. station Work elements Standard time (min/pc) 1 A 1.4 B 1.3 2 1.6 D 1.7 3 E 2.5 4 K 1.2 L 1.6 7.1 What is an efficiency of this production line? 7.2 This production line needs to produce 2000 pieces/days. Let working hour be 8 hours per day including 10 minute resting time. 7.2.1 What should be the Takt time (minute/pc) of this production? 7.2.2 If the customer requires to get this order within 1 days (8 hrs), what will be the number of operator used in each station and what is the productivity of this production system (piece/hour)? Q6. The process of interest consists of 3 elements working consecutively. Operator is standing during the work. Their normal time data for the thickness from 4 to 23 cm were constructed as; Element 1 Operator work only; Normal time is constant at 3 min/batch (4 pieces per batch) Element 2 Machine work only: Normal time data is plotted as in the given graph. 70 60 40 Normal Time (sec/pc) 30 20 10 0 0 20 25 10 15 Thickness (cm) Element 3 Operator work only Normal time is constant at 0.5 minutes/pc. 6.1 What is the Normal time of element#2 for 24 cm-thick product? 6.2 What is the Standard time of element#1 for 10 cm-thick product? 6.3 The normal time data for producing 6 mm-thick product are concluded as in the given table. Normal time for 6 mm-thick production Element 1 2 3 Normal time 3 min/batch 50 sec/pc 30 sec/pc 6.3.1 Determine (a) the total normal time of the inside work and (b) machine control time of this production. 6.3.2 What will be the standard time (sec/pc) for producing 6 mm-thick product? Q7. The production line of interest consists of 4 consecutive working stations (one operator/station). The work elements and their standard times (seconds/piece) used in each station are in the table. station Work elements Standard time (min/pc) 1 A 1.4 B 1.3 2 1.6 D 1.7 3 E 2.5 4 K 1.2 L 1.6 7.1 What is an efficiency of this production line? 7.2 This production line needs to produce 2000 pieces/days. Let working hour be 8 hours per day including 10 minute resting time. 7.2.1 What should be the Takt time (minute/pc) of this production? 7.2.2 If the customer requires to get this order within 1 days (8 hrs), what will be the number of operator used in each station and what is the productivity of this production system (piece/hour)