(a) A Muscat Tools company manufactures toolkits and supplies to the local and overseas market within the GCC region. In the assembly line, the kits are packed in the tool boxes. The company produces the specified demand rate of toolkit in 8 hours per day with tasks, description of tasks, and time for each task shown in Table Q2a. ) Draw the precedence diagram and determine the cycle time, and number of workstations; m) Balance the line using the longest task time rule, and determine the line efficiency. Table Q2(a) Demand rate 1250 (units/day) Task Description Time (sec) Predecessors Open tool box and place on assembly line A 15 Place spanner in tool box Place spark plug 7 A spanner in tool box Place screw driver in tool D 7 A box Close internal lid 7 B, C, D F Place jack in tool box 18 Place jack handle in tool G 6 box Place polishing cloth in tool box 7 Close tool box 10 F, G, H Shrink wrap tool box 21

Practical Management Science
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ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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(a) A Muscat Tools company manufactures toolkits and supplies to the local and overseas market within
the GCC region. In the assembly line, the kits are packed in the tool boxes. The company produces the
specified demand rate of toolkit in 8 hours per day with tasks, description of tasks, and time for each
task shown in Table Q2a.
) Draw the precedence diagram and determine the cycle time, and number of workstations;
m) Balance the line using the longest task time rule, and determine the line efficiency.
Table Q2(a)
Demand rate
1250
(units/day)
Task
Description
Time (sec)
Predecessors
Open tool box and place
on assembly line
A
15
Place spanner in tool
box
Place spark plug
7
A
spanner in tool box
Place screw driver in tool
D
7
A
box
Close internal lid
7
B, C, D
F
Place jack in tool box
18
Place jack handle in tool
G
6
box
Place polishing cloth in
tool box
7
Close tool box
10
F, G, H
Shrink wrap tool box
21
Transcribed Image Text:(a) A Muscat Tools company manufactures toolkits and supplies to the local and overseas market within the GCC region. In the assembly line, the kits are packed in the tool boxes. The company produces the specified demand rate of toolkit in 8 hours per day with tasks, description of tasks, and time for each task shown in Table Q2a. ) Draw the precedence diagram and determine the cycle time, and number of workstations; m) Balance the line using the longest task time rule, and determine the line efficiency. Table Q2(a) Demand rate 1250 (units/day) Task Description Time (sec) Predecessors Open tool box and place on assembly line A 15 Place spanner in tool box Place spark plug 7 A spanner in tool box Place screw driver in tool D 7 A box Close internal lid 7 B, C, D F Place jack in tool box 18 Place jack handle in tool G 6 box Place polishing cloth in tool box 7 Close tool box 10 F, G, H Shrink wrap tool box 21
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