10. The backward pass is used to determine the Latest Start Time (LST) and Latest Finish Time (LFT) of tasks. The LFT of a task is the _____ of the LST of all succeeding tasks. a. Average b. Minimum c. Maximum d. Sum
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10. The backward pass is used to determine the Latest Start Time (LST) and Latest Finish Time (LFT) of tasks. The LFT of a task is the _____ of the LST of all succeeding tasks.
a. Average
b. Minimum
c. Maximum
d. Sum
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- The difference between job enrichmem and job enlargement is that:a) enlarged jobs contain a larger number of similar tasks, while enriched jobs include some of the planning and control necessary for job accomplishment.b) enriched jobs contain a larger number of similar tasks, while enlarged jobs include some of the planning and control necessary for job accomplisllment.c) enriched jobs enable an employee to do a number of boring jobs instead of just one.d) all of the above.In an evaluation of labor assignment rules when workers are not perfectly interchangeable, Paul. M. Bobrowski and Paul Sungchil Park created a dynamic job shop with 9 work centers and 9 workers, both numbered 1–9. The efficiency of each worker is specified in the following labor efficiency matrix, which represents the degree of worker cross-training.† Work Centers 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 0.95 0.95 0.95 0.95 0.95 0.85 0.85 0.85 0.85 1.00 W o r k e r s (a) For what work center(s) is worker 2 least efficient? (Enter your answers as a comma-separated list.) (b) For what…A leatherworks factory has two punch presses for punching holes in the various leathergoods produced in the factory prior to sewing. Suppose that 12 different jobs must beprocessed on one or the other punch press (i.e., parallel processing). The processingtimes (in minutes) for these 12 jobs are given in the following table.Job 1 2 3 4 5 6 7 8 9 10 11 12Time 26 12 8 42 35 30 29 21 25 15 4 75Assume that both presses are initially idle. Compare the performance of SPT andLPT (longest processing time) rules for this example. (In parallel processing the nextjob is simply scheduled on the next available machine.)
- The following table gives the operation times and due dates for i ve jobs that are to beprocessed on a machine. Assign the jobs according to the shortest operation time andcalculate the mean l ow time.Processing Due DateJob Time (Days Hence)101 6 days 5102 7 days 3103 4 days 4104 9 days 7105 5 days 2Suppose that you are a manager in an organization and your staff required laptops for routine work. You have limited budget, time and specifications required in the laptops. You have to solve this problem. How can you solve the problem in a sequential manner?1. Which of the following is the key identifier of a resource-allocation problem? I. Constraints with the form " Amount of resource used => Amount of resource available" II. Constraints with the form " Amount of resource used <= Amount of resource available" III. Constraints with the form " Level achieved => Minimum acceptable level" IV. All constraints have the form " Amount provided = Required amount" a. I only b. II only c. III only d. IV only e. At least two is correct
- According to the XYZ Apartment Rental Company ER diagram, which of the following is true? Each building must have more than one builder Each building must have multiple apartments Each building must have at least 8 apartments Each building must have more than 2 apartments Answer: ____Can you check my work and tell me why I am not getting the answer $9100? Model Inc. has to transport 100 bags of Type Abags, 100 bags of Type B bags, and 100 bagsof Type C bags. They can hire Truck and Minivans. Each truck can carry 10 bags of Type Abags, 20 bags of Type B bags, and 10 bags ofType C bags. On the other hand, each minivancan carry 20 bags of Type A bags, 5 bags ofType B bags, and 10 bags of Type C bags. Eachtruck's rental cost is $1000, and eachminivan's rental cost is $850. There are only 5truck drivers available to drive the trucks(Hint:It means the number of trucks should be lessthan or equal to 5). If Model Inc wants tominimize the transportation cost, how manytrucks and vans should they rent? (PossibleAnswer: $9100) Data A B C COST TRUCK 10 20 10 $ 1,000.00 MINIVAN 20 5 10 $ 850.00 Model…in an assignment problem involving 8 workers and 8 jobs, total number of assignments possible are a. 8 b. 16 c. 24 d. 64
- One possible solution method for the machine-tojob assignment problem is the following heuristic procedure. Assign the machine to job 1 that completes job 1 quickest. Then assign the machine to job 2 that, among all machines that still have some capacity, completes job 2 quickest. Keep going until a machine has been assigned to all jobs. Does this heuristic-procedure yield the optimal solution for this problem? If it does, see whether you can change the job times so that the heuristic does not yield the optimal-solution.One possible solution method for the machine-to job assignment problem is the following heuristic procedure. Assign the machine to job 1 that completes job 1 quickest. Then assign the machine to job 2 that, among all machines that still have some capacity, completes job 2 quickest. Keep going until a machine has been assigned to all jobs. Does this heuristic procedure yield the optimal solution for this problem? If it does, see whether you can change the job times so that the heuristic does not yield the optimal solution.Tyler bakes Cookies (C) and Breads (B) with the help of two ovens in his little bakery. The time taken by Oven A to bake each cookie batch is 14 minutes and the time taken by Oven B is 12 minutes. The time taken by Oven A to bake a batch of bread is 16 minutes and the time taken by Oven B is 17 minutes. Each week both Ovens can be used for 50 hours each to bake Cookies and Breads. The rest of the time is used for baking other products. Moreover, Tyler starts each week with a stock of 25 batches of Cookies and 30 batches of Breads because the Cookies and Breads he produces can be considered to be “fresh” for a maximum of 2 weeks. There is an average weekly demand of 70 batches of Cookies and 50 batches of Breads. For each batch of Cookies, Tyler makes $30 in profit and for each batch of Breads Tyler makes $25 in profit. If there are any “close to losing freshness” goods at the end of the week, Tyler sells them at heavily discounted prices on weekends with a profit of $5 per batch of…