An Assembly Line to Be Balanced Has Six Tasks in Precedence.The

question 45

Multiple Choice

An assembly line to be balanced has six tasks in precedence.The task times are shown in the following table.Based on demand forecasts,the output rate has to be 160 units per day.The line operates 8 hours a day.Compute the task sequence using the ranked-position-weight rule. $$\begin{array} { | l | l | l | } \hline \text { Tasks } & \text { Immediate Predecessor } & \begin{array} { l } \text { Task Time in } \\\text { Minutes }\end{array} \\\hline \mathrm { A } & \text { NONE } & 3 \\\hline \mathrm { B } & \mathrm { A } & 1 \\\hline \mathrm { C } & \mathrm { A } & 2 \\\hline \mathrm { D } & \mathrm { B } , \mathrm { C } & 3 \\\hline \mathrm { E } & \mathrm { C } & 3 \\\hline \mathrm { F } & \mathrm { D } , \mathrm { E } & 2 \\\hline\end{array}$$

• A)A,C & B,D,E,F
• B)A,B & E,C,D,F
• C)A,B,C,D,E,F
• D)A,B,C,D & E,F

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