b) One dependent and one independent variable c) Two variables d) Two Causal variables CII Institute of Logistics PGDSCM/DSCM/ADSCM & CERTIFICATE PROGRAMS Semester-end Examinations- December 2011 OPERATIONS MANAGAEMENT/ OPERATIONS MANAGEMENT 1 Time: 3 Hours Marks: 100 7) MRP is defined as _________________. Part A Answer all questions 6) Setup costs are _______________________. a) Machines may be unproductive for several hours each time that the product is switched b) Cost associated with purchasing, follow-up, receiving, and paper work are incurred each time an order is placed. c) Inventory Cost d) Plant maintenance cost (10 x 1 = 10 Marks) 1) What are the three basic schools of thought in job design? a) Economical, Efficiency, Behavioral b) Socio-technical, Effective, Behavioral c) Socio-technical, Efficiency, Behavioral d) Socio-technical, Efficiency, Beneficial a) Bills of materials b) A technique for determining the quality and timing dependent dem and items. c) A detailed plan that states how many end items will be produced within specified periods of time. d) Master Schedule 2) What is job enrichment? a) Giving a worker a larger portion of the total task b) increasing responsibility for planning and coordination tasks, by vertical loading c) Workers periodically exchange jobs d) Giving a worker a small portion of the total task 8) Statistical Process Control (SPC) involves the comparison _________. a) That determines the number of items to sample and the acceptance criteria stipulated conditions such as the risk of rejecting a good lot or accepting a bad lot. b) Quality Assurance c) Quality Control d) Comparison of the output of a process or a service with a standard and the taking of remedial actions in case of a discrepancy between the two. 3) Productivity is ___________________ a) Output/Input b) Input/Output c) Production d) Operations 9) Which is not an example of Operations Strategies? a) Leveling Strategy b) Chase strategy c) Hybrid Strategy d) Mixed Strategy 4) The US equivalent term for work-study is _________________. a) motion and time study b) Locomotion and time study c) Job design d) Job study 10) WIP are ________________________________________________ . a) WORKING INVENTORY PIECES (WIP) b) Raw materials that have entered the manufacturing process and are being worked on. c) Items that are used in production but don’t become the final product d) Finished Goods 5) Simple Linear regression has _____________________. a) One dependent & variable 1 Part B Answer any four 1) 2) 3) Write about the historical development of Operations Management. Write about the different types of scheduling in single machine? The Production particulars of a company for 12 years of operations is furnished below: Year Units 4) 5) 6) (4 x 15 = 60 marks) 1 96 2 106 3 92 4 114 5 108 6 98 7 99 8 115 9 106 10 91 11 102 12 99 a) Fit a regression equation for the above date & Forecast for the 13th year. b) Use 3 Month Moving average to forecast production for the 13th year. How Acceptance sampling plans work in Quality? Write about the components of Materials Requirements Planning? Discuss about Work study in Operations Management Part C Answer all the questions: 1) (3*10=30 marks) Processing times and due dates for five jobs waiting to be processed at a work center are given in the following table: Job Processing time Due date (Days) (Days From Now) A B C D E 12 6 14 3 7 15 24 20 8 6 Determine the sequence of jobs, the average flow time, average job lateness, number of jobs at the work center for the earliest due date (EDD) rule 2. Alpha electronic company manufactures cathode ray tubes on mass production basis. At some intermediate point of production line, 15 samples of size 50 each have been taken. Tubes within each sample were classified into god or bad. The related data are given in the following table. Construct a P-Chart with 3-sigma limit and comment on the process. Sample Number Number of defective tubes 1 10 % of defective tubes 0.20 2 10 0.20 3 9 0.18 4 10 0.20 5 4 0.08 6 6 0.12 7 8 9 10 11 12 13 14 15 2 3 9 4 8 11 8 10 9 0.04 0.06 0.18 0.08 0.16 0.22 0.16 0.20 0.18 3. Bata Industry estimates that it will sell 24000 units of its product for the forth coming year. The ordering cost is Rs.150 per order and the carrying cost per unit per year is 20% of the purchase price per unit which is Rs. 50. Find its Economic Order size. ********************** 2