Draw a precedence diagram. Compute for the cycle time, theoretical minimum, idle time, efficiency, and balance delay.

Practical Management Science
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Draw a precedence diagram. Compute for the cycle time, theoretical minimum, idle time, efficiency, and balance delay.

*2,000 units desired output rate

*50 hrs per week of operating hours.

Green Grass, Inc., a manufacturer of lawn and garden equipment, is designing an assembly line to produce a new fertilizer spreader, the Big Broadcaster. Below are the given work elements, time and immediate predecessor data.

IMMEDIATE
PREDECESSOR(S)
WORK ELEMENT
DESCRIPTION
TIME(sec)
A
Bolt leg frame to hopper
Insert impeller shaft
Attach axle
Attach agitator
Attach drive wheel
40
None
B
30
A
50
A
D
40
В
6
В
F
Attach free wheel
25
C
G
Mount lower post
15
H
Attach controls
20
D, E
I
Mount nameplate
18
F.G
Total 244
Transcribed Image Text:IMMEDIATE PREDECESSOR(S) WORK ELEMENT DESCRIPTION TIME(sec) A Bolt leg frame to hopper Insert impeller shaft Attach axle Attach agitator Attach drive wheel 40 None B 30 A 50 A D 40 В 6 В F Attach free wheel 25 C G Mount lower post 15 H Attach controls 20 D, E I Mount nameplate 18 F.G Total 244
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