A toy company has decided to manufacture a new toy tractor, the production of wh

Question

A toy company has decided to manufacture a new toy tractor, the production of which is made up of six steps. The demand for the tractor is 4800 units per 40-hour workweek:

Task

Performance Time (Seconds)

Predecessors

A

25

None

B

20

A

C

15

A

D

15

A

E

10

B, C

F

25

D, E

For the 5 workstation configuration in which Station 1 is assigned task A, Station 2 is assigned task B, Station 3 is assigned tasks C and D, Station 4 is assigned task E, and Station 5 is assigned task F, identify the idle time for a product cycle at each work-station.

Task

Performance Time (Seconds)

Predecessors

A

25

None

B

20

A

C

15

A

D

15

A

E

10

B, C

F

25

D, E

Explanation / Answer

station 1: 25 sec. (must)

station 2:pre req. A: 25 + 20 = 45

station 3: pre req A: 25+15 =40

station 4 : pre req BC: 25+20(max. value of B anD C)+10=55

STATION 5: PRE REQ. DE: 55+25 =80 sec.

answer

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