Exam 9: Layout Strategies

An assembly line with 11 tasks is to be balanced.The longest task is 2.4 minutes,the shortest task is 0.4 minutes,and the sum of the task times is 18 minutes.The line will operate for 600 minutes per day. a.Determine the minimum and maximum cycle times. b.What range of output is theoretically possible for the line? c.What is the minimum number of stations needed if the maximum output rate is to be sought? d.What cycle time will provide an output rate of 200 units per day?

The most common tactic followed in process-layout planning is to arrange departments or work centers so they

________ are fees manufacturers pay to get their products displayed.

There are three work centers (A,B,and C)behind the financial aid counter at a nearby university.They can each fit into any of three office spaces (1,2,and 3)off the corridor behind the desk.There is no student contact in these areas,only workers.The distance 1-2 is 20 feet,2-3 is 30 feet,and 1-3 is 50 feet.The matrix of work (trips per day)at the three centers is in the following table.Remember that each trip must be a round-trip (from 1 to 2 and back,for example). a.How many possible assignments are there? List them. b.Calculate the total distance traveled in each of these assignments. c.Which assignment minimizes distance traveled?

Which of these layouts is most suitable for processing sugar from sugar beets or sugar cane?

The flow and distance data in the table below were input into a layout software program,and solved by "pairwise comparison." That solution called for assignments A-4,B-1,C-3,and D-2,with a total movement of 2430.Verify that result.Is that solution optimal? Can you offer an improved solution? What is the total movement of your alternate solution?

The most common tactic to arrange departments in a process-oriented layout is to minimize material handling costs.

Retail layouts thrive on the notion that

What are the advantages and disadvantages of product layouts?

Which of the following is not an information requirement for solving a load-distance problem?

ASRS stands for

Develop a solution for the following line balancing problem,allowing a cycle time of 5 minutes. a.Draw the precedence diagram for the set of tasks. b.Calculate the theoretical minimum number of workstations. c.Balance this line using the longest task time heuristic. d.What tasks are assigned to which stations? e.Does the solution have the minimum number of stations? Explain. f.How much idle time is there,summed over all workstations? g.What is the efficiency of this line?

________ layouts deal with low-volume,high-variety production with like machines and equipment grouped together.

Job lots are groups or batches of parts processed together.

A(n)________ line is a machine-paced product-oriented facility for building components.

The dominant problem associated with the fixed-position layout is that workers are fixed in position,and cannot be reassigned.

In what specific areas does the layout decision establish a firm's competitive priorities?

The major problem addressed by the warehouse layout strategy is

Consider the five ideas for determining the overall arrangement of most retail stores.How are these ideas implemented (a)in a supermarket,and (b)in a fine department store? (Please consider the entire store-not just the areas where merchandise is displayed. )

Hemo-tech,Inc. ,a biomedical technology and research laboratory,produces a standard blood filtering device on an assembly line basis.Six basic tasks are performed along an assembly line.The time to perform each task and the tasks that must immediately precede each task are in the table below.Twenty pumps per 450-minute day must be produced by the assembly line. a.Draw the network diagram of the precedence relationships. b.Identify the absolute minimum and maximum cycle times. c.How many workstations are required to meet the schedule? d.What is the cycle time required to meet demand? e.Balance this line using most following tasks heuristic. f.What is the efficiency of the line obtained in part e? g.Can the efficiency of this solution be improved? Explain.