An electronic product assembly require five $(5)$ steps operation; A$,$ B$,$ C$,$ D and E$.$ the number of each operation and their standard times are shown in table $1\mathrm{.}1.$

Assuming that the company work $5$ days a week and $8$ hours per day in a single shift. It produce $3000$ units last week.

$($a$)$ Sketch the above assembly line by showing the machine and sequence of operations.

$($b$)$ Determine the effective capacity and efficiency of the above assembly line.