The Twelve Tasks Necessary to Assemble a Food Blender Are

question 18

Essay

The twelve tasks necessary to assemble a food blender are listed below. The time to perform each task and the tasks that must immediately precede are also listed. 200 blenders are needed per hour and 50 minutes per hour are productive:
$\begin{array}{ccc|ccc}\text { Task }&\text {Time (in minutes)}&\text { Predecessors }&\text { Task }&\text {Time (in minutes)}&\text { Predecessors }\\\hline\text { A } & 0.20 & \text { none } & \text { G } & 0.08 & \text { E, F } \\\text { B } & 0.05 & \text { none } & \text { H } & 0.12 & \text { none } \\\text { C } & 0.15 & \text { none } & \text { I } & 0.05 & \text { none } \\\text { D } & 0.06 & \text { none } & \text { J } & 0.12 & \text { H, I, G } \\\text { E } & 0.03 & \text { A, B } & \text { K } & 0.15 & \text { J } \\\text { F } & 0.16 & \text { C, D } & \text { L } & 0.08 & \text { K }\end{array}$
a.Compute the cycle time per unit in minutes.
b.Compute the minimum number of workstations required.
c.Use the longest-task-time heuristic to balance the assembly line.
d.Compute the efficiency of your assembly line.

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Definitions:

Secondary Circular Reactions

A stage in Piaget's theory of cognitive development where infants repeat actions that are pleasurable or bring about a desirable outcome.

Primary Circular Reactions

Early repetitive behaviors in infants that focus on the body and are instrumental in the development of cognitive processes.

Tertiary Circular Reactions

The stage in Piaget's sensorimotor phase (usually around 12-18 months of age) where infants start experimenting with new behaviors through trial and error.

Coordination

The ability to use different parts of the body smoothly and efficiently together, often important for physical activities and sports.