Flow Rate_Practice Quiz

Q7. Two vital stages in a production process are assembly and packaging. The unit load for the assembly stage is 6.0 minutes, while it is 4.5 minutes for packaging. There are 10 employees working in assembly and 7 employees working in packaging. Suppose that the hourly demand for jobs (units) is 70.0. What is the capacity utilization of the process? Ti ci Assembly 6.00 10 Packaging 4.50 7 R 70 Ti ci Eff. Cap. Res Pool Assembly 6.00 10 1.666667 Packaging 4.50 7 1.555556 R 70 Eff. Cap. 1.555556 Cap. Utiliz. 0.75 Utilization = R/Eff cap = 70/(60*1.556) = Ans. 0.75 Q 8. Two vital stages in a production process are assembly I and assembly II. The unit load for the assembly I stage is 4.0 ( 50% higher for high skill) minutes, while it is 6.0 (30% higher for high skill) minutes for assembly II. There are 10 employees working in assembly I and 7 employees working in assembly II. 80% of low skill labor and 20% of high skill labor are required at both stages. Suppose that the hourly demand for jobs (units) is 70.0. What is the mix effective capacity of the process? Assembly I 4.00 10.0 Assembly II 6.00 7.0 R 70 Flow Rate April 1, 2022 8:21 AM Video Quiz Page 1

Assembly I 4.00 10.0 Assembly II 6.00 7.0 R 70 Ti (low skill) ci Ti (High Skill) Ti (mix) Assembly I 4.00 10.0 6.00 4.4 Assembly II 6.00 7.0 7.8 6.36 Low Skill 80 High 20 Ti mix = 4*0.8 + 6*0.2 = 4.4 Ti mix = 6*0.8 + 7.8*0.2 = 6.36 Eff. Cap = 10/4.4 = 2.2727 Eff. Cap. Resource pool 2.272727 Eff. Cap. 1.100629 1.100629 Eff. Cap. Ans. 1.1 Q9 . Two vital stages in a production process are assembly I and assembly II. The unit load for the assembly I stage is 7.0 ( 50% higher for high skill) minutes, while it is 10.0 (30 % higher for high skill) minutes for assembly II. There are 7 employees working in assembly I and 8 employees working in assembly II. 65% of low skill labor and 35% of high skill labor are required at both stages. . On average 18% of the operating time is wasted, what's the theoretical unit load for Assembly II? Ti (low skill) ci Assembly I 7.00 7 Assembly II 10.00 8 Low Skill 65 High 35 Ti (low skill) ci Ti (High Skill) Ti (mix) Assembly I 7.00 7 Assembly II 10.00 8 13 11.05 Ti assembly II =10*(65/100)+13*(35/100) = 11.05 Ti (mix) 8.225 11.05 Theor. Assembly II 9.061 Theor. Unit load = 11.05*(1-0.18)=9.061 Video Quiz Page 2