Question

11. Management t wants to design an assembly line that will turn out 800 videotapes per day. There will be eight working hours in each day. The industrial engineering staff has assembled the information below A) Determine the maximum and minimum cycle times B) Determine the optimum cycle time C) What is the minimum number of stations needed? 12. Given the following data: Station Cycle time-5.1 min 4.7 4.8 Determine the percentage idle time. 13. The total cost curve is relatively flat near the EOQ. True or False? 14. In the basic EOQ model, if lead time increases from five to 10 days, the EOQ will: A) double B) increase, but not double C) decrease by a factor of two D) remain the same E) none of the above 15. Which one of these would not be a factor in determining the reorder point? A) the EOQ B) the lead time C) the variability of demand D) the demand or usage rate E) all are factors

Answer 1

Answer: -

11) Given demand = 800 videotapes per day

Working time = 8 hours in minutes = 8*60 = 480 minutes

a) Minimum cycle time is nothing but the longest task time = 0.6 minutes

Maximum cycle time is nothing but total of task time = 2.3 minutes

b) Cycle time = Operating time / Output per day

= 480 minutes / 800 videotapes per day = 0.6 minutes

c) Minimum number of stations required = total task time / cycle time

= 2.3 minutes/0.6 minutes = 3.83 ~ 4 stations

12) Given cycle time = 5.1 minutes

For station 1 idle time = cycle time - station time = 5.1 - 4.2 = 0.9 minutes

For station 2 = 5.1 - 4.7 = 0.4 minutes

For station 3 = 5.1 - 4.4 = 0.7 minutes

For station 4 = 5.1 - 4.8 = 0.3 minutes

Sum of all idle times = 0.9 + 0.4 + 0.7 + 0.3 = 2.3 minutes

Percent idle time = total idle time / (n*cycle time)

= 2.3 minutes/(4*5.1 minutes) = 2.3 / 20.4 = 11.27%

13) True

14) Option"D" --- Remain the same

15) Option"A" --- The EOQ