Exam 19: Scheduling

One of the principles of work center scheduling is that the effectiveness of any shop should be measured by speed of flow through the shop.

The LCFS and Johnson's priority rules are basically the same except LCFS uses due dates as a major determiner of job sequence.

The assignment method is useful in solving scheduling problems that have which of the following characteristics?

Priority rules are the rules used to obtain a job sequence in production scheduling.

Assume you are sequencing a job using Johnson's rule.The job requires 7 hours to assemble and then is followed by 8 hours in the painting department.Which of the following is where you would schedule this job?

Scheduling hourly work times using the "first hour principle" insures that no excess labor will be used during the work shift.

A work center has five jobs assigned to it.They are labeled,in the order of their arrival in the shop,as jobs A,B,C,D and E.The work center may work on only one job at a time and must complete any job it starts before starting another job.Job A has a processing time of 6 days and is due to the customer in 9 days.Job B has a processing time of 2 days and is due in 16 days.Job C has a processing time of 4 days and is due in 10 days.Job D has a processing time of 3 days and is due in 7 days.Job E has a processing time of 5 days and is due in 12 days.Using the shortest operating time priority rule,what will be the average lateness of these orders?

Which of the following is not a priority rule used to schedule the sequence of jobs in a production operation?

One of the principles of work center scheduling is to match work center input information to what the worker can actually do.

For a high-volume type of manufacturing which of the following is the typical production scheduling approach?

MES and SES are acronyms for "Manufacturing Environment Scheduler" and "Service Environment Scheduler" systems,respectively.

Initiating performance of scheduled work is commonly termed "dispatching" of orders.

Which of the following is not an objective of work center scheduling?

In infinite loading no consideration is given directly to whether there is sufficient capacity at the resources required to complete the work,nor is the actual sequence of the work as done by each resource in the work center considered.

What is the difference between finite and infinite loading?

A machine shop has two machines,A and B.Four jobs need to be processed through machine A first and B second.Job 1 will take one hour on machine A and three hours on machine B.Job 2 will take three hours on A and two hours on B.Job 3,seven on A and three on B.Job 4,five hours on A and one hour on B.Using Johnson's rule,in what order should these jobs be done?

Using the random order or "whim" priority rule to sequence production jobs means that supervisors select whichever job they feel like running first.

Which of the following is a tool of shop-floor control?

Which of the following might be a status and exception report used in shop-floor control?

Johnson's rule,a priority rule used in sequencing production jobs is used only in production situations where we are dealing with one machine or one stage of production activity.