ActivityImmediate PredecessorsActivity TimeA–5 daysBA9 daysCA8 daysDB6 daysEB, C4 daysFE4 daysGD, F3 daysThe minimum time required to complete the project is:A)23 daysB)24 daysC)25 daysD)39 daysE) none of the above2. Use the network given in the Word file in the Final Examination Session under Course Content. The early start time (ES) for job G is:A) 13B) 16C) 21D) 25E) 383. Use the network given in the Word file in the Final Examination Session under Course Content. The late finish time (LF) for job C isA) 7B) 14C) 16D)21E) 224. Use the network given in the Word file in the Final Examination Session under Course Content. The critical path is given by:A) A ? B ? E ? HB) A ? B ? F ? HC) A ? B ? F ? G ? HD) A ? C ? F ? HE) A ? C ? F ? G ? H 5. Use the network given in the Word file in the Final Examination Session under Course Content.The minimum time required to complete the project is:A)23 daysB)25 daysC)29 daysD)31 daysE) none of the above6. Use the network given in the Word file in the Final Examination Session under Course Content. The slack at activity D is:A) 0B) 5C) 8D) 13E) None of the above7. One part of a PERT project, installing equipment, will most likely be completed in 6 days. However, if there are no worker absences, the equipment can be installed in 3 days. If a members the work force happens to catch Bubonic Flu, this year’s disease, the installation will take 15 days. What is the expected time (te) for the equipment installation?A) 3 daysB) 6 daysC) 7 daysD) 8 daysE) 15 days8. A firm desires to control inventory levels so as to minimize the sum of holding and order costs. It costs the firm $50 to place an order. The firm estimates its inventory carrying costs at $2/unit/year. Weekly demand is 100 units, and there are 50 weeks in the work year. The item costs $10 per unit. The lead-time for the product is 3 weeks. Assume that there are 5 working days per week.What quantity of items should the firm order each time so as to minimize total inventory costs, i.e., what is the EOQ?A) 100B) 224C) 500D) 1000E) none of the above9. Using the data of Question 8: If 400 units are ordered each time (i.e., EOQ = 400), then what will be thetotal annual holding cost?A) $100B) $200C) $400D) $800E) $400010. Using the data of Question 8: If 200 units are ordered each time,how many orders will be placed in a year?A) 2B) 5C) 10D) 20E) 2511. Using the data of Question 8: If 200 units are ordered each time, then thetime between orders (in working days) isA) 2B) 5C) 10D) 20E) 2512. Using the data of Question 8: If 1000 are ordered each time, then what will be thetotal annual order cost?A) $50B) $100C) $200D) $250E) $30013. Use the data of Question 8 and assume no safety stock or service level requirement. In order not to run out of stock before the receipt of a new order, at what inventory level should the firm place an order? That is, what is the reorder point equal to?A) 50B) 160C) 200D) 300E) 40014. Given that unit cost = $25, annual carrying charge = 10%, annual demand = 7500 units and ordering cost = $15 per order. Assume that there are 50 weeks in the work year and 5 working days per week. The lead-time for the product is2weeks. The EOQ is:A) 150 unitsB) 212.13 unitsC) 300 unitsD) 500 unitsE)none of the above 15. Lincoln Machine Tool Company maintains an inventory pool consisting of 10 items. Each of these items has a unique demand pattern and may require a different kind of inventory management system. The annual demand pattern and the unit cost of these items are given in the following table. Classify the items in A, B, and C categories according to annual dollar usage.Annual UsageUnit CostItem Typein thousandsin DollarsItem 110$2.50Item 230$1.25Item 320$16.00Item 410$0.75Item 520$3.00Item 633$2.50Item 760$14.25Item 822$10.00Item 9100$2.75Item 10500$4.25Using the above data,Item 7 will be classified as:A) A itemB) B itemC) C itemD) None of the above16. Using the data of Question 15,Item 6 will be classified as:A) A itemB) B itemC) C itemD) None of the above17. Using the data of Question 15,Item 8 will be classified as:A) A itemB) B itemC) C itemD) None of the above18. One end itemA requires three component parts:B,C, andD. The bill of material indicates that for each completedA, 3 units ofB, 2 units ofC, and 1 unit ofD are required. Current inventory for the four items is as follows: There are 18As, 40Bs, 50Cs and 35Ds in stock. If the lead time for all items is one week and there are no scheduled receipts for any item, how many units of productA can be delivered to customers at the start of next week (week 2)?A) 35B) 31C)25D) 13E) None of the aboveProduct D has gross requirements, on-hand inventory, and scheduled receipts as indicated in the time-phased inventory status record below. Its lead time is 3 weeks.Item D123456Gross Requirements10030010030020050On Hand/ Scheduled Receipts70060030020000Net Requirements000?20050Planned Order Releases100?5019. The value of entryA is:A) 100B) 200C) 300D) 700E) None of the above.20. The value of entryB is:A) 50B) 200C) 250D) 300E) None of the above21. Use the BOM given in the Word file in the Final Examination Session under Course Content. If the master schedule calls for the production of 50 units ofA, how many units ofE are needed?A) 50B) 100C) 200D) 400E) None of the above22. Use the BOM given in the Word file in the Final Examination Session under Course Content. If the MPS calls for the production of 50 units of itemA, how many units of itemD are needed?A) 100B) 150C) 300D) 400E) None of the above 23. Use the BOM given in the Word file in the Final Examination Session under Course Content Now assume that 50 units of item Aare called for by the MPS. On-hand inventory consists of 20 units each of itemsA,B, D andE. What is the net requirement for itemD?A) 40B) 100C) 120D) 140E) 16024. The master production schedule for two products, A and B, is shown below. To manufacture item A, four (4) units of component C are required. To manufacture item B, three (3) units of component C are required. Using this information, determine the gross requirements for component C to start week 1.Master Production Schedule: Wk 1Product A30Product B25A) 195B) 220C) 155D) 190E) None of the above
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