Monday, May 27, 2019

Decision Analysis Study Guide Scheduling

this is the best study guide I could find. Just match the questions with the answers for the study guide. Chapter 15 Multiple Choice Questions 1. Which of the following is true regarding forward schedule? Forward scheduling is the scheduling of a. the end items or finished products b. jobs as soon as the requirements are cognize c. the start items or component part d. the final operation low of each(prenominal) beginning with the due date Which of the following best describes how short-term schedules are prepared? Short-term schedules are prepared a. instantaneously from the aggregate plans b. directly from the capacity plans c. rom inventory records for items that have been used up d. from control schedules which are derived from aggregate plans Which scheduling technique should be utilize when due dates are important for a job narrate? a. forward scheduling b. loading c. dispatching d. backward scheduling e. overpower scheduling Which of the following is not an effectiv eness criterion for scheduling? a. maximizing shine magazine b. minimizing cessation eon c. minimizing WIP inventory d. maximizing utilization Forward scheduling a. begins with a economy date, then each operation is off go under one at a time, in reverse outrank b. s well suited where the supplier is normally able to meet precise delivery dates c. tends to calumniate in-process inventory d. assumes that procurement of bodily and operations start as soon as requirements are known Which deposit contains important information regarding an items flow through the shop? a. routing commit b. work center master file c. control files d. item master file Which of these is not part of the planning files of a production planning and control system? a. a progress file b. a work center master file c. an item master file d. a routing file Which of the following files tracks work order progress? . work center master files b. routing files c. item master files d. control files 2. 3. 4. 5. 6 . 7. 8. 9. The production database containing information about each of the components that a firm produces or purchases is the a. routing file b. work center master file c. control file d. item master file The short-term scheduling activity called loading a. assigns dates to specific jobs or operations steps b. specifies the order in which jobs should be through with(p) at each center c. assigns jobs to work centers d. assigns actors to jobs The assignment manner is a. a method to highlight overloads in a given(p) work center b. computerized method of determining appropriate tasks for an operation c. a form of linear programming for optimally assigning tasks or jobs to resources d. the same thing as the Gantt schedule map A scheduling technique used to achieve optimum, one-to-one matching of tasks and resources is a. the assignment method b. Johnsons rule c. the CDS Algorithm d. the appointment method Which of the following is an supporter used to monitor jobs in process? a. a Gantt load chart b. the assignment method c. a Gantt schedule chart d. Johnsons Rule If an assignment conundrum consists of 6 workers and 7 projects, a. ne worker will not get a project assignment b. one worker will be charge two projects c. each worker will contribute work toward the seventh project d. one project will not get a worker assigned Orders are processed in the sequence in which they arrive if (the) ______ rule sequences the jobs. a. earliest due date b. slack time remaining c. first come, first serve d. critical ratio 10. 11. 12. 13. 14. 15. 16. Which of the following dispatching rules ordinarily gives the best results when the criterion is lowest time for completion of the full sequence of jobs? a. shortest process time (SPT) b. critical ratio (CR) c. irst in, first out (FIFO) d. first come, first serve (FCFS) 17. Sequencing (or dispatching) a. assigns dates to specific jobs or operations steps b. assigns jobs to work centers c. specifies the order in which jobs sho uld be done at each center d. assigns workers to jobs 18. Five jobs (A, B, C, D, E) are waiting to be processed. Their processing times and due dates are given below. Using the shortest processing time dispatching rule, in which order should the jobs be processed? Job A B C D E a. b. c. d. bear on snip (days) 4 7 8 3 5 A, B, C, D, E C, E, A, D, B B, D, A, E, C D, A, E, B, C Job due date (days) 7 4 11 5 8 9. Five jobs are waiting to be processed. Their processing times and due dates are given below. Using the earliest due date dispatching rule, in which order should the jobs be processed? Job A B C D E a. b. c. d. Processing Time (days) 4 2 8 3 5 C, E, A, D, B A, B, C, D, E B, D, A, E, C C, B, A, E, D Job due date (days) 7 4 11 5 8 20. Flow time represents the time a. an order spends waiting for processing at a work center b. an order spends being processed at a work center c. an order spends moving from one work center to another d. o complete an order, including time spent in pro cessing and in waiting Which of the following dispatching rules tends to minimize job flow time? a. FCFS first come, first served b. SPT shortest processing time c. EDD earliest due date d. LPT overnight processing time Average completion time for a schedule sequence at a work center is center a. processing time divided by the number of jobs b. flow time divided by total processing time c. flow time divided by the number of jobs d. processing time plus total late time divided by number of jobs Five welding jobs are waiting to be processed.Their processing times and due dates are given below. Using the critical ratio dispatching rule, in which order should the jobs be processed? 21. 22. 23. Job A B C D E a. b. c. d. 24. Processing Time (days) 4 2 8 3 5 B, D, A, E, C C, D, A, B, E C, E, A, D, B E, B, A, D, C Job due date (days) 7 4 11 5 11 Which of the following dispatching rules allows easy updates? a. FCFS first come, first served b. SPT shortest processing time c. EDD earliest du e date d. CR critical ratio The precession rule which processes jobs according to the smallest ratio of due date to processing time is a. ritical ratio b. earliest due date c. first come, first serve d. longest processing time Which of the following is an advantage of the FCFS dispatching rule when used in services? a. FCFS seems fair to customers b. FCFS minimizes the average number of jobs in the system c. FCFS minimizes the average lateness of all jobs d. FCFS maximizes the number of jobs completed on time The most appropriate sequencing rule to use if the goal is to dynamically track the progress of jobs and establish relative anteriority on a common basis is a. shortest processing time b. earliest due date c. critical ratio d.Johnsons rule Use of the sequencing rule Shortest Processing Time generally results in a. minimum average lateness b. maximum utilization c. maximum effectiveness d. minimum average flow time When a set of jobs must pass through two workstations whose se quence is fixed, ______ is the rule most commonly applied. a. Johnsons Rule b. earliest due date rule c. first come, first serve rule d. slack time remaining A recent advance in short-term scheduling that makes use of expert systems and simulation in solving dynamic scheduling problems is a. forward scheduling b. backward scheduling c. infinite scheduling 5. 26. 27. 28. 29. 30. d. finite scheduling 31. Which of the following techniques does not contribute to increase throughput at a bottleneck? a. schedule throughput to match capacity of the bottleneck b. increase capacity of constraint c. have cross-trained employees available to operate the constraint d. formulate alternate routings An appliance manufacturer assembles icemakers in large batches. The operations manager would like to significantly reduce the batch size. What would you suggest? a. use the SPT rule b. use forward scheduling c. use finite scheduling d. develop level material use schedules 33.A firm wants to develop a level material use schedule based on the following data. What should be the apparatus cost? desired lot size 60 annual demand 40,000 retentiveness cost $20 per unit per year daily production rate 320 of work days per year 250 a. b. c. d. 34. $0. 45 $4. 50 $45 $450 32. Factory X is trying to use level use scheduling. If their first target were to justify the current lot size in half, by what proportion must setup cost change? a. Setup cost must be cut to one-fourth its current value. b. Setup cost must also be cut in half from its current value. c. Setup cost must double from its current value. . Cannot be determined. Which of the following is true regarding services scheduling? a. The Critical dimension sequencing rule is widely used for fairness to customers. b. The emphasis is on staffing levels, not materials. c. Reservation systems are often used a means of manipulating the supply of services. d. cranch use can be intensive, and labor demand is usually stable. c d c a c d c d b c b d 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. a a c d a d a d a a b 35. Chapter 15 Multiple Choice Answers 13. 1. b 14. 2. d 15. 3. d 16. 4. a 17. 5. d 18. 6. a 19. 7. a 20. 8. d 21. 9. d 22. 10. c 23. 11. c 24. 12. a

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