Problem $12-3($LO $12-2)$ Sequence the jobs shown below...

Sequence the jobs shown below by using a Gantt chart. Assume that the move time between machines is one hour. Sequence the jobs in priority order $1,2,3,4.$

JobWork Center per Machine HoursDue Date $($days$)1$A per $3,$ B per $2,$ C per$232$C per $2,$ A per $423$B per $6,$ A per $1,$ C per $344$C per $4,$ A per $1,$ B per $23$

What is the makespan?

How much machine idle time is there?

When is each job delivered compared with its due date?

How much idle time $($waiting time$)$ is there for each job?

Devise a better job sequence for processing.

SequenceJob$1$

multiple choice $1$

$1$

$2$

$3$

$4$

$2$

multiple choice $2$

$1$

$2$

$3$

$4$

$3$

multiple choice $3$

$1$

$2$

$3$

$4$

$4$

multiple choice $4$

$1$

$2$

$3$

$4$