Exam 7: Constraint Management

Table 7.3 The figure above shows the process for customers arriving at Pierre's Spa and Salon.After signing in,customers are routed to different locations in the Spa for the two different services provided.The numbers in parentheses are the time in minutes for each step of the process. -Use the information in Table 7.3.What is the throughput time for the A-B-E-F-G-H routing?

Use the process flow diagram to determine which of these events has the greatest net benefit.

The third step in Theory of Constraints application,"subordinate all other decisions to Step 2," means that the analyst should:

Describe a process from your own personal experience at home or work that suffers from a lack of sufficient throughput.Apply the first four TOC steps to address the situation,assuming you have complete authority to do so.

Figure 7.1 -Use the information in Figure 7.1.What are the required predecessors of activity H?

Table 7.2 The figure above shows the process for paying tuition at a major university.Students are provided their bill for the next term for review,then routed to different tables for questions to be answered before finally paying their tuition at E.The numbers in parentheses are the time in minutes for each step of the process. -Use the information in Table 7.2.Where would you expect student wait times to occur?

Table 7.7 A company makes four products that have the following characteristics: Product A sells for $75 but needs $20 of materials and $20 of labor to produce;Product B sells for $90 but needs $45 of materials and $20 of labor to produce;Product C sells for $110 but needs $50 of materials and $30 of labor to produce;Product D sells for $135 but needs $75 of materials and $40 of labor to produce.The processing requirements for each product on each of the four machines are shown in the table. Work centers W,X,Y,and Z are available for 40 hours per week and have no setup time when switching between products.Market demand is 50 As,60 Bs,70 Cs,and 80 Ds per week.In the questions that follow,the traditional method refers to maximizing the contribution margin per unit for each product,and the bottleneck method refers to maximizing the contribution margin per minute at the bottleneck for each product. -Use the information in Table 7.7.Using the traditional method,what is the profit if the company manufactures the optimal product mix (consider variable costs only-overhead is not included in this profit calculation)?

Fun Vehicles,Inc.makes beach buggies on an assembly line.The total productive time to make one buggy is 300 seconds.The current line has a 90-second cycle time and consists of four workstations.The balance delay of this line must be:

A bottleneck process has the lowest capacity and the longest total time from the start to the finish.

Paced lines require that inventory storage areas be placed between stations.

The fourth step in Theory of Constraints application,"elevate the bottleneck(s)," means that the analyst should:

Table 7.8 King Supply makes four different types of plumbing fixtures: W,X,Y and Z.The contribution margins for these products are: $70 for Product W,$60 for Product X,$90 for Product Y and $100 for Product Z.Fixed overhead is estimated at $5,500 per week.The manufacture of each fixture requires four machines,Machines #1,2,3 and 4.Each of the machines is available for 40 hours a week and there is no setup time required when shifting from the production of one product to any other.The processing requirements to make one unit of each product are shown in the table.Weekly product demand for the next planning period has been forecasted as follows: 70 Ws,60 Xs,50 Ys and 30 Zs. In the questions that follow,the traditional method refers to maximizing the contribution margin per unit for each product,and the bottleneck method refers to maximizing the contribution margin per minute at the bottleneck for each product. -Use the information in Table 7.8.Using the traditional method,what is the optimal product mix?

A(n)________ line is a product line that produces several items belonging to the same family.

Consider the process shown that is trying to produce to meet a market demand of 500 units per week. Step 1: Material release schedule Step 2: Drilling (capacity is 500 units/week)Step 3: Tapping (capacity is 450 units/week)Step 4: Grinding (capacity is 600 units/week)Step 5: Coating (capacity is 400 units/week)Step 6: Inspection (capacity is 1000 units/week)a.Where should buffers be placed? b.Which resource is the drum? c.Where should the rope be placed? d.Which resource is the bottleneck? e.Which resource is the CCR?

The production of a particular product consists of the following work elements.If the cycle time is 4 minutes and the work-element times are as follows,what is the theoretical minimum number of stations?

Table 7.5 A company makes four products that have the following characteristics: Product A sells for $50 but needs $10 of materials and $15 of labor to produce;Product B sells for $75 but needs $30 of materials and $15 of labor to produce;Product C sells for $100 but needs $50 of materials and $30 of labor to produce;Product D sells for $150 but needs $75 of materials and $40 of labor to produce.The processing requirements for each product on each of the four machines are shown in the table. Work centers W,X,Y,and Z are available for 40 hours per week and have no setup time when switching between products.Market demand for each product is 80 units per week.In the questions that follow,the traditional method refers to maximizing the contribution margin per unit for each product,and the bottleneck method refers to maximizing the contribution margin per minute at the bottleneck for each product. -Use the information in Table 7.5.Using the traditional method,in what sequence should products be scheduled for production?

What are five of the seven key principles of the Theory of Constraints?

Table 7.2 The figure above shows the process for paying tuition at a major university.Students are provided their bill for the next term for review,then routed to different tables for questions to be answered before finally paying their tuition at E.The numbers in parentheses are the time in minutes for each step of the process. -Use the information in Table 7.2.If 60% of the students are routed to C and 40% are routed to D,what is the average capacity per hour for the process?

Describe three ways that line balancing and line flow layouts are similar to project management and three ways they are different.

Table 7.2 The figure above shows the process for paying tuition at a major university.Students are provided their bill for the next term for review,then routed to different tables for questions to be answered before finally paying their tuition at E.The numbers in parentheses are the time in minutes for each step of the process. -Use the information in Table 7.2.What is the throughput time for the A-B-D-E process route?