Oregon DSC 335 Winter 2013 Ch 7 Constraint Management- MCQ 19 TO 116

MULTIPLE CHOICE19. The focus for a process improvement exercise should be on balancing:a. flow.b. capacity.c. workload.d. timE20. According to the Theory of Constraints, the four operational measures of capacity include all of the following EXCEPT:a. inventory.b. throughput.c. utilization.d. delivery lead times.21. Practical application of the Theory of Constraints involves the implementation of all of the following steps EXCEPT:a. Identify the system bottleneck(s).b. Exploit the bottleneck(s).c. Reduce the capacity at the bottleneck(s).d. Elevate the bottleneck(s).22. Consider consecutive processes A-B-C, where process A has a capacity of 20 units per hour, process B has a capacity of 25 units per hour, and process C has a capacity of 30 units per hour. Where would an operations manager want any inventory?a. in front of process A.b. in front of process B.c. in front of process C.d. inventory should not exist anywhere.23. Use the process flow diagram to determine which of these events has the greatest net benefit.a. reducing the flow time at Station A from 8 to 7 minutes.b. increasing the capacity at Station B to 8 units per hour.c. increasing the capacity at Station C to 7 units per hour.d. reducing the flow time at Station D from 9 to 8 minutes.24. Use the process flow diagram to determine which of these events has the greatest net benefit.a. reducing the flow time at Station A from 10 to 8 minutes.b. increasing the capacity at Station B to 12 units per hour.c. increasing the capacity at Station C to 10 units per hour.d. reducing the flow time at Station D from 12 to 10 minutes.25. Use the process flow diagram to determine which of these events has the greatest net benefit.a. reducing the flow time at Station A from 8 to 7 minutes.b. increasing the capacity at Station B to 12 units per hour.c. increasing the capacity at Station C to 9 units per hour.d. reducing the flow time at Station D from 6 to 5 minutes.26. Work should be released into the system:a. when a customer order is received.b. when the first step in the process is idle.c. when a customer order is completed.d. when the bottlenecks need work.27. The second step in Theory of Constraints application, “exploit the bottleneck(s),” means that:a. the analyst should create a schedule that maximizes the throughput of the bottlenecks.b. the analyst should repeat the analysis process to look for other bottlenecks.c. the analyst should consider increasing capacity of the bottleneck.d. the analyst should schedule non-bottleneck resources to support the bottleneck.28. The third step in Theory of Constraints application, “subordinate all other decisions to Step 2,” means that:a. the analyst should wait for authorization before proceeding with any system-wide changes.b. the analyst should schedule non-bottleneck processes to support the bottleneck schedule.c. the analyst should seek to increase capacity of only the bottleneck resources.d. the analyst should seek to increase capacity of both the bottleneck and non-bottleneck resources.29. The fourth step in Theory of Constraints application, “elevate the bottleneck(s),” means that:a. the analyst should create a schedule that maximizes the throughput of the bottlenecks.b. the analyst should repeat the analysis process to look for other bottlenecks.c. the analyst should consider increasing capacity of the bottleneck.d. the analyst should schedule non-bottleneck resources to support the bottleneck.30. The fifth step in Theory of Constraints application, “do not let inertia set in,” means that:a. the analyst should create a schedule that maximizes the throughput of the bottlenecks.b. the analyst should repeat the analysis to identify and manage new set of constraints.c. the analyst should consider increasing capacity of the bottleneck.d. the analyst should schedule non-bottleneck resources to support the bottleneck.31. Which of the following statements regarding setups is TRUE?a. Unusually high setup times result in higher utilization.b. Processes are generating output throughout the entire setup process.c. A machine used in a line process would probably have fewer setups than a batch process.d. A TOC analyst would not be concerned with setup times on non-bottleneck machines.32. There are three consecutive steps in a customer service process. The first two steps are each capable of serving 25 customers per hour while the third step can process only 20 customers per hour. Which of the following statements regarding this system is true?a. The entire system is capable of processing 25 customers per hour.b. There are floating bottlenecks in the system.c. If the first two steps are run at full capacity, then the third step has a waiting line.d. The first and second steps are bottlenecks for the system.33. Use the information in Table 7.1. What is the throughput time for the process, assuming that the Call Center is always busy and has customers waiting to be processed?a. 24 minutesb. 18 minutesc. 20 minutesd. 22 minutes34. Use the information in Table 7.1. What is the process bottleneck?a. Ab. B and C togetherc. Dd. E35. Use the information in Table 7.1. What is the 8-hour capacity for the process?a. 24 callsb. 17.1 callsc. 40 callsd. 48 calls36. Use the information in Table 7.1. Where would you expect customer wait times to occur?a. D onlyb. C and Dc. A onlyd. E only37. Use the information in Table 7.2. What is the throughput time for the A-B-C-E process route?a. 17 minutesb. 27 minutesc. 21 minutesd. 19 minutes38. Use the information in Table 7.2. What is the throughput time for the A-B-D-E process route?a. 17 minutesb. 27 minutesc. 21 minutesd. 19 minutes39. Use the information in Table 7.2. What is the capacity for the A-B-C-E process route?a. 10 students per hourb. 6 student per hourc. 3.5 students per hourd. 2.9 students per hour40. Use the information in Table 7.2. What is the capacity for the A-B-D-E process route?a. 10 students per hourb. 6 student per hourc. 3.5 students per hourd. 2.9 students per hour41. 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?a. 10 students per hourb. 6.5 student per hourc. 8 students per hourd. 8.4 students per hour42. Use the information in Table 7.2. Where would you expect student wait times to occur?a. D onlyb. B, C and Dc. A onlyd. E only43. Use the information in Table 7.3. What is the throughput time for the A-B-C-D -H routing?a. 48 minutesb. 30 minutesc. 53 minutesd. 23 minutes44. Use the information in Table 7.3. What is the throughput time for the A-B-E-F-G-H routing?a. 48 minutesb. 30 minutesc. 53 minutesd. 23 minutes45. Use the information in Table 7.3. What is the process bottleneck?a. Hb. Bc. Cd. D46. Use the information in Table 7.4. What is the throughput time for the A-B-C-D-G routing?a. 25 minutesb. 70 minutesc. 105 minutesd. 60 minutes47. Use the information in Table 7.4. What is the throughput time for the A-B-E-F-G routing?a. 25 minutesb. 70 minutesc. 105 minutesd. 60 minutes48. Use the information in Table 7.4. How many customers can be processed through the A-B-C-D-G routing during a 4-hour evening session?a. 48b. 24c. 32d. 1249. Use the information in Table 7.4. How many customers can be processed through the A-B-E-F-G routing during a 4-hour evening session?a. 8b. 24c. 12d. 32Table 7.5A 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.Processing Time (min/unit)Work CenterABCDW61312X91048Y43129Z100711Work 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 methodrefers to maximizing the contribution margin per minute at the bottleneck for each product.50. Use the information in Table 7.5. Which work center is of greatest concern to the operations manager?a. Work center Wb. Work center Xc. Work center Yd. Work center Z51. Use the information in Table 7.5. Using the traditional method, which product should be scheduled first?a. Product Ab. Product Bc. Product Cd. Product D52. Use the information in Table 7.5. Using the traditional method, in what sequence should products be scheduled for production?a. D, C, B, Ab. D, B, A, Cc. C, D, A, Bd. C, D, B, A53. Use the information in Table 7.5. Using the traditional method, what is the optimal product mix (consider variable costs only—overhead is not included in this profit calculation)?a. 71 A, 80B, 80C, 80 Db. 80A, 72B, 80C, 80Dc. 80A, 80B, 60C, 80Dd. 80A, 80B, 80C, 70D54. Use the information in Table 7.5. 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)?a. Less than or equal to $8,100b. Greater than $8,100 but less than or equal to $8,300c. Greater than $8,300 but less than or equal to $8,500d. Greater than $8,50055. Use the information in Table 7.5. Using the bottleneck method, which product should be scheduled first?a. Product Ab. Product Bc. Product Cd. Product D56. Use the information in Table 7.5. Using the bottleneck method, in what sequence should products be scheduled for production?a. D. C. B. Ab. D, C, A, Bc. C, D, A, Bd. C, D, B, A57. Use the information in Table 7.5. Using the bottleneck method, what is the optimal product mix (consider variable costs only—overhead is not included in this profit calculation)?a. 71 A, 80B, 80C, 80 Db. 80A, 72B, 80C, 80Dc. 80A, 80B, 60C, 80Dd. 80A, 80B, 80C, 70D58. Use the information in Table 7.5. Using the bottleneck 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)?a. Less than or equal to $8,100b. Greater than $8,100 but less than or equal to $8,300c. Greater than $8,300 but less than or equal to $8,500d. Greater than $8,500Table 7.6Burdell Industries makes four different models of computer printers: the E-1000, the S-2000, the P-2000 and the N-1000. The E-1000 sells for $200 and has $40 in parts and $40 in labor; the S-2000 sells for $150 and requires $30 in parts and $30 in labor; the P-2000 sells for $100 and has $20 in parts and $20 in labor; and the N-1000 sells for $75 but requires only $10 of parts and $10 of labor. Fixed overhead is estimated at $5,000 per week. The manufacture of each printer 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: 80 E-1000s; 65 S-2000s; 35 P-2000s; and 20 N-1000s.Processing Time (Minutes Per Printer)ModelMachine 1Machine 2Machine 3Machine 4E-1000 (E)1015155S-2000 (S)10101010P-2000 (P)5101510N-1000 (N)55510In the questions that follow, the traditional method refers to maximizing the contribution margin per unit for each product, and the bottleneck methodrefers to maximizing the contribution margin per minute at the bottleneck for each product.59. Use the information in Table 7.6. Which machine is the bottleneck operation?a. Machine 1b. Machine 2c. Machine 3d. Machine 460. Use the information in Table 7.6. Using the traditional method, which product should be scheduled first?a. Product Eb. Product Sc. Product Pd. Product N61. Use the information in Table 7.6. Using the traditional method, in what sequence should products be scheduled for production?a. N, S, E, Pb. N, E, P, Sc. P, E, N, Sd. E, S, P, N62. Use the information in Table 7.6. Using the traditional method, what is the optimal product mix?a. 120 E, 90 S, 60 P, 55 Nb. 60 E, 20 S, 50 P, 33 Nc. 80 E, 65 S, 35 P, 5 Nd. 80 E, 65 S, 20 P, 35 N63. Use the information in Table 7.6. Using the traditional method, what is the profit if Burdell manufactures the optimal product mix?a. Less than or equal to $10,000b. Greater than $10,000 but less than or equal to $13,000c. Greater than $13,000 but less than or equal to $16,000d. Greater than $16,00064. Use the information in Table 7.6. Using the bottleneck method, which product should be scheduled first?a. Product Eb. Product Sc. Product Pd. Product N65. Use the information in Table 7.6. Using the bottleneck method, in what sequence should products be scheduled for production?a. N, S, E, Pb. N, E, P, Sc. P, E, N, Sd. E, S, P, N66. Use the information in Table 7.6. Using the bottleneck method, what is the optimal product mix?a. 80 E, 65 S, 35 P, 20 Nb. 60 E, 20 S, 50 P, 33 Nc. 120 E, 90 S, 60 P, 55 Nd. 80 E, 65 S, 30 P, 20 N67. Use the information in Table 7.6. Using the bottleneck method, what is the profit if Burdell manufactures the optimal product mix?a. Less than or equal to $10,000b. Greater than $10,000 but less than or equal to $13,000c. Greater than $13,000 but less than or equal to $16,000d. Greater than $16,000Table 7.7A 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.Processing Time (min/unit)Work CenterABCDW841210X129106Y812145Z10955Work 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 methodrefers to maximizing the contribution margin per minute at the bottleneck for each product.68. Use the information in Table 7.7. Which work center is the bottleneck operation?a. Work center Wb. Work center Xc. Work center Yd. Work center Z69. Use the information in Table 7.7. Using the traditional method, which product should be scheduled first?a. Product Ab. Product Bc. Product Cd. Product D70. Use the information in Table 7.7. Using the traditional method, in what sequence should products be scheduled for production?a. A, B, C, Db. A, C, B, Dc. A, D, B, Cd. D, B, C, A71. Use the information in Table 7.7. Using the traditional method, what is the optimal product mix?a. 37 A, 60 B, 70 C, 80 Db. 50 A, 51 B, 70 C, 80 Dc. 50 A, 60 B, 62 C, 80 Dd. 50 A, 60 B, 70 C, 60 D72. 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)?a. Less than or equal to $6,500b. Greater than $6,500 but less than or equal to $6,700c. Greater than $6,700 but less than or equal to $6,900d. Greater than $6,90073. Use the information in Table 7.7. Using the bottleneck method, which product should be scheduled first?a. Product Ab. Product Bc. Product Cd. Product D74. Use the information in Table 7.7. Using the bottleneck method, in what sequence should products be scheduled for production?a. A, D, B, Cb. D, A, B, Cc. A, D, C, Bd. D, A, C, B75. Use the information in Table 7.7. Using the bottleneck method, what is the optimal product mix?a. 37 A, 60 B, 70 C, 80 Db. 50 A, 51 B, 70 C, 80 Dc. 50 A, 60 B, 62 C, 80 Dd. 50 A, 60 B, 70 C, 60 D76. Use the information in Table 7.7. Using the bottleneck 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)?a. Less than or equal to $6,500b. Greater than $6,500 but less than or equal to $6,700c. Greater than $6,700 but less than or equal to $6,900d. Greater than $6,900Table 7.8King 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.Processing Time (Minutes Per Fixture)FixtureMachine 1Machine 2Machine 3Machine 4W1015105X5101510Y205510Z155510In the questions that follow, the traditional method refers to maximizing the contribution margin per unit for each product, and the bottleneck methodrefers to maximizing the contribution margin per minute at the bottleneck for each product.77. Use the information in Table 7.8. Which machine is the bottleneck operation?a. Machine 1b. Machine 2c. Machine 3d. Machine 478. Use the information in Table 7.8. Using the traditional method, which product should be scheduled first?a. Fixture Wb. Fixture Xc. Fixture Yd. Fixture Z79. Use the information in Table 7.8. Using the traditional method, in what sequence should the fixtures be scheduled for production?a. Z, Y, X, Wb. X, W, Z, Yc. Z, Y, W, Xd. W, X, Y, Z80. Use the information in Table 7.8. Using the traditional method, what is the optimal product mix?a. 70 W, 60 X, 90 Y, 100 Zb. 70 W, 50 X, 50 Y, 30 Zc. 70 W, 60 X, 47 Y, 30 Zd. 70 W, 47 X, 50 Y, 30 Z81. Use the information in Table 7.8. Using the traditional method, what is the profit if King Supply manufactures the optimal product mix?a. Less than or equal to $10,000b. Greater than $10,000 but less than or equal to $11,000c. Greater than $11,000 but less than or equal to $12,000d. Greater than $12,00082. Use the information in Table 7.8. Using the bottleneck method, which product should be scheduled first?a. Fixture Wb. Fixture Xc. Fixture Yd. Fixture Z83. Use the information in Table 7.8. Using the bottleneck method, in what sequence should products be scheduled for production?a. Z, Y, X, Wb. X, W, Z, Yc. Z, Y, W, Xd. X, Y, Z, W84. Use the information in Table 7.8. Using the bottleneck method, what is the optimal product mix?a. 70 W, 60 X, 90 Y, 100 Zb. 70 W, 50 X, 50 Y, 30 Zc. 70 W, 60 X, 47 Y, 30 Zd. 70 W, 47 X, 50 Y, 30 Z85. Use the information in Table 7.8. Using the bottleneck method, what is the profit if Burdell manufactures the optimal product mix?a. Less than or equal to $10,000b. Greater than $10,000 but less than or equal to $11,000c. Greater than $11,000 but less than or equal to $12,000d. Greater than $12,00086. In a drum-buffer-rope system, the lot size that moves from one work center to another for additional processing is a(n):a. process batch.b. operations batch.c. transfer batch.d. rope batch.87. The process batch at the constraint in a drum-buffer-rope system should:a. be the same size as that at any non-constraint.b. be the same size as the transfer batch.c. be of such a size as to maximize the number of setups for the constraintd. be of such a size as to improve utilization of the constraint.88. Which one of the following statements is best concerning line balancing?a. The theoretical minimum number of stations must always be fewer than the actual number achieved in a final solution. Increasing the output rate may increase the theoretical minimum number of stations.b. The “largest number of followers” rule assigns as quickly as possible those work elements most difficult to fit into a station.c. Selecting the cycle time can never have an effect on line efficiency.89. What is the definition of “theoretical maximum efficiency”?a. It is the amount by which efficiency falls short of 100 percent.b. It is the efficiency that could be obtained by a solution that achieves the theoretical minimum number of stations.c. It is the maximum time allowed for work on a unit at each station.d. It is alternatively called the desired output rate.90. Which one of the following statements about line balancing is best?a. If a precedence relationship exists between A and B, they cannot be assigned to the same station.b. If the desired output rate increases, the cycle time also tends to increase.c. The theoretical minimum number of stations can never be achieved, hence the name “theoretical.”d. If a line’s balance delay is minimized, its efficiency is maximized.Figure 7.1.gif”>91. Use the information in Figure 7.1. What are the required predecessors of activity H?a. E & Gb. A through F, including Ec. Activity H has no required predecessors.d. D92. Use the information in Figure 7.1. If each task has a work time of one minute, what is the theoretical minimum cycle time?a. There is no minimum cycle time.b. 1 minutec. 8 minutesd. The cycle time cannot be determined with the information given.93. Use the information in Figure 7.1. If each task has a work time of one minute and there are 480 work minutes in a day, what is the task assignment at the fourth workstation if maximum output is desired?a. Ab. Bc. Cd. D94. Use the information in Figure 7.1. If each task has a work time of one minute and there are 8 hours in a day, what is the task assignment at the first station if 160 units should be produced each day?a. A, B, C, Db. H, G, F, Ec. A, B, Cd. H, G, F95. Use the information in Figure 7.1. If each task has a work time of one minute and there are 8 hours in a day, what is the minimum number of stations if 240 units should be produced each day?a. Oneb. Twoc. Threed. FourTable 7.9Balance the following line for an output rate of 3 units per minute.WorkElementTime(sec)ImmediatePredecessor(s)A12–B6AC12AD4BE14B, CF10EG6D, F96. Use the information in Table 7.9. How many stations are required?a. 3b. 4c. 5d. 697. Use the information in Table 7.9. What is the balance delay for your solution?a. Less than or equal to 15%b. More than 15% but less than or equal to 25%c. More than 25% but less than or equal to 35%d. More than 35%Table 7.10Balance the following line for an output rate of five pieces per hour. The times are in minutes (not seconds).WorkElementTime(min)ImmediatePredecessor(s)A7–B5–C3–D4–E2A, BF5CG6DH7E, FI11F, GJ4H, I98. Use the information from Table 7.10. The theoretical minimum number of stations is:a. fewer than three stations.b. three stations.c. four stations.d. more than four stations.99. Use the information from Table 7.10. The highest efficiency for a balanced line is:a. Less than 89%.b. More than 89% and less than 91%.c. More than 91% and less than 93%.d. More than 93%.Table 7.11The Pennsylvania Appliance Company is installing an assembly line to produce vacuum cleaners, and you, as an operations manager, are responsible for balancing the line. The work elements to be performed are listed, along with their times and immediate predecessors.WorkElementTime(sec)ImmediatePredecessor(s)A60–B40AC30BD20BE40BF60CG70DH50F, GI20EJ60H, I100. Use the information in Table 7.11. The company is planning to operate 2 shifts per day, 8 hours per shift. If the desired output rate of the line is 480 units per day, what is the cycle time?a. 60 secondsb. 120 secondsc. 180 secondsd. 240 seconds101. Use the information in Table 7.11. What is the theoretical minimum number of stations (TM) for the line? How many workstations are needed for the most efficient balance possible given these circumstances?a. TM = 3; solution = 3 stationsb. TM = 3; solution = 4 stationsc. TM = 4; solution = 4 stationsd. TM = 4; solution = 5 stations102. Use the information in Table 7.11. What is the highest efficiency possible for a balanced line?a. Less than 91%b. More than 91% and less than 93%c. More than 93% and less than 95%d. More than 95%Table 7.12A company desires to set up a line to produce 60 units per hour. The work elements and their precedence relationships are as follows.Work ElementTime (sec)Immediate Predecessor(s)140-230135014402562625371538204,59186,710308,9103. Use the information in Table 7.12. What is the theoretical minimum number of stations?a. 3b. 4c. 5d. 6104. Use the information in Table 7.12. What is the highest efficiency line balance possible?a. Less than 93%b. More than 93% but less than or equal to 95%c. More than 95% but less than or equal to 97%d. More than 97%Table 7.13The following information is given about an assembly line. The desired output rate is 90 units per hour.WorkElementTime(sec)ImmediatePredecessor(s)A10–B6AC15AD20BE12BF14C, EG8DH20F, G105. Use the information in Table 7.13. What is the fewest number of workstations that you need?a. Two stationsb. Three stationsc. Four stationsd. More than four stations106. Use the information in Table 7.13. Suppose that the desired output rate is increased to 120 units per hour and a solution has been found that has four workstations. What is the efficiency of this new assembly line?a. Less than 80%b. Between 80% and 85%c. Between 85% and 90%d. More than 90%107. A line-balancing solution has been developed for the assembly line for fertilizer spreaders at Green Grass, Inc. The desired output rate of 30 spreaders per hour will be achieved. The sum of times for all tasks performed on the line is 1200 seconds for each spreader assembled. This is the total productive time. Which of the following statements must be true?a. The cycle time is 30 seconds per spreader.b. The theoretical minimum number of stations is 10.c. If the solution calls for 11 stations, the efficiency is 80%.d. If the solution calls for 12 stations, the efficiency is 80%.Table 7.14The production of a particular product consists of seven work elements. The desired output rate is 60 units per hour. The work element and their precedence relationships are given.WorkElementTime(sec)ImmediatePredecessor(s)130–215132024153530362547305, 6108. Use the information in Table 7.14. How many stations are required for the most efficient balance you can achieve?a. Two stationsb. Three stationsc. Four stationsd. Five stations109. Use the information in Table 7.14. What is the most efficient line balance you can achieve?a. Less than or equal to 70%b. More than 70% but less than or equal to 75%c. More than 75% but less than or equal to 80%d. More than 80%110. An assembly line has to perform 10 work elements, whose time requirements follow. An operations analyst has found a solution using some heuristics, as shown in the table. If the cycle time of the line is 90 seconds, what is the efficiency of the assembly line?SolutionWorkElementsTime (sec)StationWork Elements AssignedA451A, B, CB302D, EC153F, HD304G, IE505JF40G30H30I60J80a. Less than 85%b. Greater than 85% but less than 90%c. Greater than 90% but less than 95%d. Greater than 95%111. Given the following data about an assembly line and the knowledge that we are trying to attain an output rate of 40 units per hour, what is the theoretical minimum number of stations?WorkElementTime (sec)190280375470590685a. Four or fewer stationsb. Five stationsc. Six stationsd. Seven or more stations112. 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?WorkElementTime (min)12.420.532.142.052.761.172.082.791.6101.4a. Fewer than or equal to three stationsb. Four stationsc. Five stationsd. More than five stations113. 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. 0%.b. greater than 0% but less than 6%.c. greater than 6% but less than 12%.d. greater than 12% but less than 18%.Table 7.15The Terminal Company is attempting to balance its assembly line of high-voltage electrical connectors. The desired output for the line is 50 connectors per hour, and the information on the work elements for this assembly line is as follows.WorkElementsTime (sec)Immediate Predecessor(s)A40–B36AC20AD25AE30B, CF34DG35EH5FI15E, HJ40HK38G, I, J114. Use the information from Table 7.15 to balance this line. What is the most efficient solution?a. More than 90%b. 80–90%c. 70–79%d. Less than 70%115. Use the information from Table 7.15 and the most efficient line balance possible. What work elements are included in the first station?a. A onlyb. A and B onlyc. A and E onlyd. A and D only116. Use the information from Table 7.15, and assume that the most efficient line balance possible ha been achieved. What is the total idle time for an eight hour work day?a. Less than an hour and a half.b. More than 1:30 but less than or equal to 1:45.c. More than 1:45 but less than or equal to 2 hours.d. More than 2 hours