FALL MGMT 405/ FINAL EXAM/REVISION

Transcription

1 Business Department FALL MGMT 405/ FINAL EXAM/REVISION MGMT 405, Production Man.

2 Section A/Multiple Choice-30% Revision 1) Which of the following part does not indicate the concept of project? A) Time B) Cost C) specific objectives D) Operations 2) Which of the following is not one of project tools? A) Work breakdown structure B) Network diagram C) Gantt charts D) Management 2

3 Section A/Multiple Choice-Example 3) Which of the following part cannot be defined as inventory? A) Final product B) Raw materials C) Supplies D) Delivered parts Revision 4) Which of the following is not one of dependent demand goods? A) Chip B) Mother board C) Power unit D) Computer 5) Which of the following word means waste? A) Andon B) Jidoka C) Poka-yoke D) Muda 3

4 Section A/Multiple Choice-Example 6) amateurs talk strategy and professionals talk logistics said by A) Alexander the Great B) Clerchus of Sparta C) Napoleon D) Nelson 7) Which of the following is not one of reasons to Outsorcing? A) Organizationally-driven B) Financially-driven C) Revenue-driven D) Banking-driven 8) Which of the following word means logistics? A) flow of goods and services B) flow of cash C) Flow of information D) All 4

5 Section A/Multiple Choice-Example 9) Supply chains are sometimes called. Revision A) Service chains B) Money chains C) Value chains D) Good chains 10) Which of the following is not one of the Five Major Supply Chain Drivers? A) Production B) Data C) Location D) Inventory 11) Which of the following word means the most important factor in outsourcing? A) lower labor costs B) fixed costs C) Tied up capital D) Regulations 5

6 Section A/Multiple Choice-Example 12) focus on eliminating the problems in order to increase production. A) JIT system B) Pull system C) Push system D) Lean system 13) Which of the following is not one of the Supply-Chain Purchasing Strategies? A) Many suppliers B) Few buyers C) Keiretsu network D) Virtual company 6

7 Section A/Multiple Choice-Example 14) makes workers aware of quality. A) Muda B) takt C) Jideko D) Poka-yoke Revision 15) In 1982 at Toyota the changeover time for machine was reduced from 100 minutes to 3 minutes. This is a good example for the system called. A) Internal activities B) External activities C) Led D) Smed 7

8 Section B/type 1-CPA-35% Revision The following table contains information related to the major activities of a research project. Use the information to do the following: each case may require the use of a dummy activity. (a)draw a precedence diagram using AOA (b)find the critical path based AOA. (c) Determine the expected length of the project. (d)calculate the amount of slack time for each path as well as ES, EF, LS and LF (e)briefly explain the scenario. 8

9 Section B/type 1-Example- CPA Revision Activity Previous Activity Time(week) A - 14 B - 8 C - 7 D B, - 5 E C 9 F C 3 G D, E 6 H A 4 end G, F, H 9

10 Section B/type 1-Answer- CPA Revision 10

11 Section B/Type2-PERT-35% Given the following diagram: Compute (a) Draw a precedence diagram (b) Find the expected time, critical path, the expected duration, path the variance and the std. deviation (c) the probability that the project can be completed within 15 and 16 weeks of its start for critical path only. (d) Briefly explain. 11

12 Section B/Type2-Example-PERT Activity Predecessor Time(weeks) - A B C A D C,B E A End E,D 12

13 Section B/Type2-Answer-PERT 13

14 Section B/Type2-Answer-PERT 14

15 Section B/Type2-Answer-PERT Revision 15

16 Section C/type 1-(EOQ)- 35% Surge Electric uses 4000 toggle switches a year. Switch are priced in the following table. It costs approximately $ 180 to prepare an order and receive it, and carring costs are 18 percent of purchase price per unit on an annual basis. Range Price 1 to 449 $ to or more 8.2 Determine (a) the common EOQ (b) the total cost if the feasible minimum point is on the lowest price range, that is the optimal order quantity. (c) the total cost if the feasible minimum point is in any other price range. 16

17 Section C/type 1-(EOQ)- Answer-35% Revision 17

18 Section C/Type 2 ROP with variable demand-35% A carpet shop sells super carpet with the lead time receiving a new order is 10 days. Demand (uncertain or variable) during lead time could be described by a normal distribution that has a mean of 30 yards and a standard deviation of 5 yard per day whereas stockout risk of no more than 5 percent and safety stock for a service level of 95%. (a) What value of Z is appropriate? (b) How much safety stock should be held? (c) What reorder point should be used? 18

19 Section C/Type 2 Answer-35% (a) What value of Z is appropriate? L= 10 days α dlt =5 yr per day risk =5 percent =0.95 from z table (lead time), z= 1.64 (page 569, table 12.3) (b) How much safety stock should be held? Safety stock = Z * LT = (1.64) (5) *3.16 = yd (c) What reorder point should be used? ROP= d ( LT) z( LT=30*10+(1.64) (5) *3.16 = LT ) yd 19

20 Section D/Bonus-Facility Location-10% A restaurant chain purchases ingredients from four different food suppliers. The company wants to construct a new central distribution center to process and package the ingredients it uses in its menu items before shipping them to their various restaurants. The suppliers transport the food items in 40-foot tractor-trailer trucks. The coordinates of the four suppliers and the annual number of truckloads that will be transported to the distribution center are as follows: 20

21 Section D/Bonus-Facility Location -10% Coordinates Supplier x y Annual Truckloads A B C D (a) Determine facility location for the system (b) Calculate individual distance for each supplier (c) Compute the total distance for the new locations that minimizes the total miles from the suppliers. (d) Show the figures calculated on a graph. 21

22 Section C/type 2-Facility Location-Answer-10% C x = Cy 200(65) +100(120) + 250(90) 500(75) = (65) + 500(120) + 600(90) 300(75) = = da=sroot[( ) 2+ ( ) 2 ]= da db dc dd D(v)=231.14(65) (75)= total distance. 22

23 Section D/Bonus-Facility Location-Answer-10% 700 Location 600 C 500 B 400 FL 300 D 200 A

24 Thanks 24