For the set of tasks given below, do the following Immediate Task Time(seconds)

Question

For the set of tasks given below, do the following Immediate Task Time(seconds) 45 Task 12 10 F, G, H 10 193 b. Determine the minimum and maximum cycle times in seconds for a desired output of 500 units in a seven-hour day. (Round your answers to 1 decimal place.) The minimum cycle time The maximum cycle time c. Determine the minimum number of workstations for output of 500 units per day. (Round up your answer to the next whole number.) Minimum number of workstations d. Balance the line using the greatest positional weight heuristic. Break ties with the most following tasks heuristic. Use a cycle time of 50 seconds Following Tasks Click to select) (Click to select) Click to select) (Click to select) (Click to select) Work stations IV e. Calculate the percentage idle time for the line using the 50 second cycle time. (Round your answer to 1 decimal place. Omit the "%" sign in your response.) Percentage of idle time

Explanation / Answer

Min. cycle time = Length of longest task = 50 seconds

Max. cycle time = Time / Desired output = 7 * 60*60 / 500 = 50.4 seconds

Number of workstations = Sum of task time / Cycle time = 193 / 50.4 = 3.82 or 4 workstations

d)

Station

Following task

Total Time Used at Station

Idle Time at Station

1

A

45

5

2

D

50

0

3

B, E, C

46

4

4

G, F, H, I

42

8

5

J

10

40

e) Percent Idle Time:

Idle time per cycle = 5 + 0 + 4 + 8 + 40 = 57 seconds

Total cycle time = 50.4*5 = 252

Idle time % = 57/252 = 22.61%

Station

Following task

Total Time Used at Station

Idle Time at Station

1

A

45

5

2

D

50

0

3

B, E, C

46

4

4

G, F, H, I

42

8

5

J

10

40

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