Questions from General Operations Management

Q: Five jobs are to be processed on one machine. If the

Five jobs are to be processed on one machine. If the jobs are processed in the FCFS order 1-2-3-4-5, compute the start time and flow time for each job:

Q: These six jobs are to be scheduled on a single machine:

These six jobs are to be scheduled on a single machine: a. Suppose the jobs are processed in FCFS numerical order. Compute the makespan, flow time for each job, and overall average flow time. b. In wh...

Q: On Tuesday morning at 8 a.m., an IT analyst

On Tuesday morning at 8 a.m., an IT analyst found four project “tickets” in her inbox that arrived over- night. The estimated times to complete the projects and the...

Q: Five patients arrived at the radiology department in a hospital and are

Five patients arrived at the radiology department in a hospital and are waiting for X-rays. Use the SPT rule to create a schedule. Compute the start time and flow time for each patient.

Q: A workstation has one maintenance mechanic to re- pair failed machines

A workstation has one maintenance mechanic to re- pair failed machines. We can think of the mechanic as the processor (scarce resource) and the machines awaiting repair as the jobs. Let us assume that...

Q: Five customers brought in computers to be repaired to a small shop

Five customers brought in computers to be repaired to a small shop. Estimated repair times (in days) and dates promised are given below. Due dates were set based on available technicians; however, one...

Q: At Lynwood Manufacturing, (see Solved Problem 15.9),

At Lynwood Manufacturing, (see Solved Problem 15.9), suppose the dispatcher uses the LWR instead of FNO. Which job (job 2 or job 3) will be scheduled next on the drill press at time 30?

Q: A manufacturing process involving machined components consists of two operations done on

A manufacturing process involving machined components consists of two operations done on two different machines. The status of the queue at the beginning of a particular week is as follows: The proces...

Q: On Monday morning, Baxter Industries has the following jobs waiting for

On Monday morning, Baxter Industries has the following jobs waiting for processing in two departments, milling, and drilling, in that order. a. Develop a minimum makespan schedule using Johnsonâ...

Q: Dan’s Auto Detailing business performs two major activities: exterior cleanup,

Dan’s Auto Detailing business performs two major activities: exterior cleanup, and interior detailing. Based on the size of car and condition, time estimates for six cars on Monday m...