A book binder has one printing press, one binding machine and manuscripts of 7 different books. The times required for performing printing and binding operations for different books are shown below. Book 1 2 3 4 5 6 7 Printing time (hours) 20 90 80 20 120 15 65 Binding time (hours) 25 60 75 30 90 35 50 Decide the optimum sequence of processing of books in order to minimize the total time required to bring out all the books.

There are six wires which need to be attached to a circuit board. A robotic device will attach the wires. The wires can be attached in any order, and the production manager wishes to determine which order would be fastest for the robot to use. Use the multiplication rule of counting to determine the number of possible sequences of assembly that must be tested. (Hint: There are six choices for the first wire, five for the second wire, four for the third wire, etc.)

A startup company is considering making a part by injection molding.  The part is moderately complex and the volume of the part is about 10 cubic centimeters.  Assume that the part is designed for injection molding and can be made with a two part mold.  The company needs to make 250,000 parts made from ABS plastic.  Once the mold is made it will take a worker 1 minute to make one part using the injection molding machine.  The company will use contract manufacturing to produce the parts.  Estimate the cost per part and explain how you came up with the number.  (If you are stuck look at the Contract Manufacturing Cost per Unit section.  Also keep in mind that there is no exact right answer, the goal is to come up with a reasonable estimate.) Contract Manufacturing Cost per Unit:  It’s not uncommon to hire another company to perform some or all the manufacturing for a product.  To estimate the cost use ((Cost of Parts and Materials) + (man hours) × $40)/.75

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A production process at Brianna Bryant Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with, the sawing and sanding, which are independent sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). 6 units/hr 2.5 units/hr Sawing Sanding Q Assembly 0.8 units/hr Welding 5 units/hr Assembly 0.8 units/hr Drilling 2.1 units/hr a) is the bottleneck. b) The bottleneck time is minutes per unit (round your response to two decimal places). c) The throughput time of the overall system is minutes (round your response to two decimal places). Assembly 0.8 units/hr d) If the firm operates 11 hours per day, 20 days per month, the monthly capacity of the manufacturing process is units (enter your response as a whole number).

Kingcade Corporation keeps careful track of the time required to fill orders. Data concerning a particular order appear below: Wait time Process time Inspection time Move time Queue time The throughput time was: Multiple Choice 33.1 hours 4.7 hours 28.4 hours 14.3 hours Hours 18.8 1.6 0.6 2.5 9.6

Given the data D = 5000 units, and EOQ = 500, and assuming a 250-day work year. What is the expected time between orders? (value after the full number) Hint: Find the cycle time, multiply with 250-day work year (in days) (rounded).

A Jack-in-the-box toy includes two components, the jester (part A) and the box (part B). The following flowchart demonstrates its manufacturing process. Production of Part A A.1 A.2 C.1 C.2 B.1 B.2 В.3 Production of Part B Final assembly It takes two steps, A.1 and A.2, to make part A, performed by two dedicated workstations, respectively: A.1 has a process time of 3 minutes; A.2 has a process time of 8 minutes. It takes three steps, B.1, B.2, and B.3, to make part B, performed by three dedicated operators, respectively: B.1 has a process time of 5 minutes; R2 hac a nrocece timo of 8 minutoe

Given the information in the following table, determine the processing sequence that would resultusing the S/O rule.JobRemainingProcessingTime (days)DueDateRemainingNumber ofOperationsa 5 8 2b 6 5 4c 9 10 4d 7 12 3e 8 10 2

Order 1 2 3 4 5 Time Since Order Arrived (hours ago) 3 1 0 6 5 You answered Sequence Order The due dates reflect the need for the order to be at its next operation. Develop separate schedules by using the FCFS and EDD rules. Compare the schedules on the basis of average flow time and average past due hours. Using the FCFS (first come, first served) decision rule for sequencing the orders, the order is Sequence Order Estimated Machine Time (hours) 15 9 7 10 3 1 5 Rule EDO FCFS 4 4 Using the EDD (earliest due date) decision rule for sequencing the orders, the order is (to resolve a tie, use order in which the orders were received) ¹2 1 4 2 3 Due Date (hours from now) 5 5 3 18 20 21 12 The average flow time and average past due hours for each option (enter your responses are real numbers rounded to two decimal place Average Flow Time Average Past Due Hours