Explain the value of seasonal indices in forecasting. How are seasonal patterns different from cyclical patterns?
Five jobs are to be run-first on process I then on process II. The jobs are listed below with their time requirements on the two processes. i) Sequence the jobs so that the total flow time and idle time will be minimized. ii) Show the sequence and duration on a bar chart and indicate the time at which each job will be completed.
Table 1(c) shows the demand of a goods for the year 2003 to 2009. Develop a trend equation and forecast 2013 demand.
Table 1(c)
In Bangladesh, medial colleges are usually located at the centre of town. Do you think the location is appropriate? Justify your answer.
Justify the statement 'A good layout always ensure minimum material handling'.
A contractor in Chattogram has six jobs awaiting processing. Processing time and due dates are given in Table 3(c). Set the processing sequence according to i) SPT ii) Slack iii) Critical ratio iv) EDD and evaluate, which sequencing rule the contractor should follow?
Table 3(c)
Write down the objectives of material handling system. What are the selection criteria of material handling equipments?
Find the best sequence of doing the following jobs. Consider SPT, FCFS and EDD.
Write down the applications of reverse engineering. When reverse engineering is required?
What is production and operations management? What are the key functions of an operation manager?
List and elaborate the functions of production planning and control.
Claire Consultants has been entrusted with task of evaluating business plan that has been divided into four sections - marketing, finance, operations and human resources. Chris, Steve, Juana, and Rebecca form the evaluation team. Each of them has expertise in a certain field and tends to finish that section faster. The estimated times taken by each team member for each section have been outlined in the table below. Each of these individuals is paid $60/hour. (i) Assign each member to a different section such that Claire Consultants overall cost is minimized. (ii) What is the cost of these assignments?
The values are in minutes.
State Johnson's rule. Using Johnson's sequencing rule solve the following problem
Consider the following six jobs that need to be processed by a single machine. The table below contains processing time and due date information of these jobs.
Create schedules for these six jobs according to SPT, EDD, and simple critical ratio rules. For each rule, compute the average flow time, average tardiness and number of tardy jobs.
Define unit load. What are the advantages and disadvantages of unit load concept? What are the criteria for planning a load in a unit load system?
Five empolyees are available to perform four jobs. The time it takes each person to perform each job is given in the table below.
Note: Dashes indicate person cannot do that particular job.
What is resource scheduling? Write down the objective of resource scheduling.
Five jobs are to be run-first on process I then on process II. The jobs are listed below with their time requirement on the two processes.
Describe product layout, process layout and fixed position layout with examples. What are the consequences of bad layout?
What is resource scheduling? Write down the objectives of resource scheduling.
Let 5 jobs are awaiting at the beginning of a shift to be processed in machines. The processing time in days have been estimated as follows:
Find best sequence of doing the following jobs. Consider SPT, FCFS and EDD.
Wheat is harvested in the Midwest and stored in grain elevators in three different cities (Kansas city, Omaha and Des Moines), supply three flour mills, located in three other cities (Chicago, St. Louis, and Cincinnati). The following Table summarizes factory availabilities, projected store demands and unit shipping costs.
Use the north-west corner method to find out the total cost.
Wilkerson printing has four jobs waiting to be run this morning. Fortunately, they have four printing presses available. However, the presses are of different vintage and operate at different speeds. The approximate times (in minutes) required to process each job on each press are given in bellow Table. Assign jobs to presses to minimize the press running times.