A certain part (0438) requires three assembly operations (L, M and Q) that are sequentially

done on an automatic assembly line. The schedule designer requires this assembly line to

produce 6000 parts/month, and the plant will be operating 4 weeks per month, six days per

week, and 8 hours per day. The following information is known:

The line is controlled by a computer that requires re-programing every lot of 750 parts.

This re-programing process takes 1 hour on average.

a) The required input to the automatic assembly line is:

b) The available time in (hours) at operation (M) for producing the required quantity is:

c) The required time in (hours) for operation (Q) to produce the required quantity is:

d) The fraction of the control computer programming process is:

e) The number of automatic assembly lines required to produce the 6000 units/months

is:

\begin{tabular}{|c|c|c|c|c|} \hline Operation & Standard Time (Min.) & Efficiency (\%) & Reliability (\%) & Defect Rate (\%) \\ \hline L & 2 & 90 & 80 & 3 \\ \hline M & 4 & 92 & 95 & 7 \\ \hline Q & 3 & 95 & 90 & 5 \\ \hline \end{tabular}