QUESTION 8 If the minimum flow time increases, the cycle time would also increas
ID: 385334 • Letter: Q
Question
QUESTION 8
If the minimum flow time increases, the cycle time would also increase.
True
False
QUESTION 9
A product requires two steps, A and B. Step A is the predecessor of Step B. Two workers are assigned to A, and one worker is assigned to B. For each product, the process time in Step A if the work is done by one worker is 20 min. The process time in Step B if the work is done by one worker is 15 min. Each worker works for 480 minutes/day. Suppose the process is producing at 25 units/day. What is the labor utilization?
50%-79%
80%-100%
20%-49%
<10%
QUESTION 10
A process has three steps. There is one worker at each step. The time taken at step 1 is 4 minutes, at step 2 is 6 minutes and at step 3 is 10 minutes. Steps 1 and 2 are sub-assemblies that are done in parallel, and feed to the assembly step 3. The capacity of the process is
12 units/hour
6 units/hour
(12+10+7.5)/3= 9.83 units/ hour
10 units/hour
QUESTION 11
Consider a 4-step process with all the steps in a series. Each step takes 6 min/unit. If the processing time of the first step is reduced to 5 min/unit, the cycle time of the process will not reduce.
True
False
a.50%-79%
b.80%-100%
c.20%-49%
d.<10%
Explanation / Answer
8. true. because the flow cycle time is highly effected by both minimum and maximum times. if the minimum time increased it show impact in the same proportionate of cycle time.
9. if we cosnidered the working time per each day is 480 minutes, and the maximum time per set up is 20 minutes per product, the tulization rate will be- the number of units with setup time is- 480/20= 24 units.
hence the utilization rate is near by 100%.
option B is correct.
10. in this example the maximum set up time for unit 3 is 10 minutes. so we need to consider this time for overall productions. by considering this per hour productivity will be= 60/10 = 6 uints per hour
option B is correct.
11. true. the totla cycle time will be reduce only the maximum time taken process is declined. in the given example all the activities carries 6 minutes set up time, the reduction of one unit setup time does not support to minimize the total cycle time of the process.
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