BITS -PILANI, DUBAI DUBAIINTERNATIONAL ACADEMIC CITY DUBAI. Final Comprehensive Examination. PART -A (10x1 = 10)

Transcription

1 BITS -PILANI, DUBAI DUBAIINTERNATIONAL ACADEMIC CITY DUBAI ME UC1 -Production Plannina and Controls Date & time Weightage Component type Final Comprehensive Examination 6th May 00, to 1.00pm 0% Closed book PART -A (10x1 = 10) Differentiate between make to order, made to stock and made to assembly Consider your college as a production system in which the final product is a graduate. For this system Define quality from the producer's and customer's perspective. What is the difference between assignment and transportation models used in aggregate planning? What are HOC" Curves significance in manufacturing Define reliability and its significance in the production process. what is meant by simultaneous engineering What are the merits and demerits of crashing a project. What is meant by poke yoke give examples. Differentiate between correlation and regression techniques used in forecasting. List the different types of kanban and their significance in production controls PART - (6 x5 = 0) 1.b.a. Why companies traditionally use control charts with -sigma instead of -sigma limits A company produces three products A, B& C. The following are the resources requirements The manufacturer has a daily production budget of Rs.000and a maximum of 660 hrs of labour. Maximum daily customer demand is for 00 quantities of A, 00 B's and 150 C's. the selling price of A is Rs 15, B is 0 and Cis 1. The firm desires to know the optimal product mix that will maximize the profit. Formulate and solve the linear programming model using graphical method. How does the AQL relate the producer's risk (a) and the L TPD relate to the consumer's risk (j). Develop a house of quality for a domestic air conditioner. Develop customer requirements related to easy to use, cost, capabilities and other features as applicable.

2 .a.b..b BITS -PILANI, DUBAI DUBAIINTERNA TIONAL ACADEMIC CITY DUBAI A company produces Product "A" whose annual demand is 1,00 per year. The transportation handling cost are Rs 600 each time a shipment is ordered by the distribution cerlter. The annual carrying cost is Rs.75 per product. 1. Determine the optimal order quantity and the minimum total annual cost.. If company were to relocate its distribution center, it would reduce its transpor1ation and handling cost to Rs 1900 per order but increase the carrying cost by Rs.50 per product. Should the company relocate based on inventory cost? What is meant by lean manufacturing? List down the techniques used to bring forth it. and 5. A service center has six cars to be processed. Processing time ( in days) and due dates information for each car are given below Job Processing Time Due Date Sequence the jobs by FCFS, A SPT, SLACK and EDD rules. B 1 Calculate the mean flow time and C 1 mean tardiness of the six jobs D under each sequencing rule. E Which rule will you recommend F 5 10 Sob. Write Short notes on 1. Influence of inventory control in SCM. Various forecasting models

3 BITS, Pilani -Dubai Dubai International Academic City, UAE First Semester MEUC 1 -Production Planning and Control Test -II Date Component th November007 Test -II (Open book) Weight Maximum marks 0% 0 1 An assembly line consists of three workstations (WS) with each station's activity time as shown. Determine I WS 1 L~ I WS L_~ _J WS I I 5 minutesr--- -I minutesr I minutes I 1. The maximum output when the system is fully in operational for hours of production time.. If the line currently assembles 10 units every hour when fully functional, then the line's balance delay at this rate of output. The following table of probabilistic time estimates (in weeks) and activity predecessor~; are provided for a project. Determine the following: The expected time to complete the project, The variance of the project's total completion time, The probability that the project could be completed in weeks and The probability that the project will take longer than weeks to complete. Activity Time Estimates Activity' (week~) Predecessor a m The following forecasting information is for a company that uses an adjusted exponential smoothing model to predict demand for a product it produces. Adjusted Period Demand Forecast Trend Forecast Janua~ Februa~ If the firm uses smoothing constants a = 0.0 and 1 = 0.0, determine the trend factor and the adjusted forecast for Februa~. A restaurant currently uses 6,500 boxes of napkins each year at a constant daily rate. The cost to order napkins is $00.00 per order and the annual carrying cost for one box of napkirls is $1.00. If the restaurant orders the optimal (EOQ) number of boxes each time, determine the followi!ng: The number of orders placed during the year, The time between orders, The total annual inventory and ordering cost for

4 I BITS, Pilani -Dubai Dubai International Academic City, UAE First Semester MEUC 1 -Production Planning and Control napkins and The average inventory for napkins 5 The following set of jobs must be processed serially through a two-step system. If Johnson's Rule is used to sequence the jobs then the order in which the jobs would be performed would be Then the make span time (in hours) for all jobs. Using Gantt Chart display the schedule of the activities. Process Job~.c 1 h;- I E Process

5 BITS -Pilani, Dubai Dubai International Academic City Dubai MEUC 1 -Production Planning and Controls Test-1 Evaluation component Date & time Weight age Component type Test-1 16th March 00 -Scheduled test hour 5% Closed book 1 A farmer has to decide whether to plant corn or soybeans. The probabilities that the next harvest prices of these commodities will go up, stay the same or go down are 0.5, 0.5 and 0.50 respectively. If the prices go up, the corn crop will price a sum of Rs 0,000 & the soy will price a sum of Rs If the prices remain unchanged, it is a break even. But if the prices go down the corn and soybeans will sustain losses Rs. 5,000 and Rs 5000, respectively. a. Representhe problem as a decision tree b. Which crop should the farmer grow. National outdoor school (NOS) is preparing for a summer campsite to train individuals in wilderness survival. NOS estimates that attendance can fall into one of four categories: 00, 50, 00 and 51 persons. The cost of the campsite will be the smallest when the size meets the demand exactly. Deviations above or below the ideal demand levels incur additional costs resulting from building surplus (unused) capacity, Dr losing income opportunities when the demand is not met. Let A1 to A be the camp sizes of the campsites (00, 50,00 and 50) and S1 to S the level of attendance; the table below summarizes the cost matrix for the situation. Analysis the problem for all four criteria and suggest \.. '\ Discuss in brief what you understana oy acceptance sampling The meat is stored in a container at 0 F. The manager has decided to construct a chart to monitor the temperature inside the container. 0 samples were taken in day to constructhe chart. The following are the temperaturesample observations. Perform a pattern test to analyses for non randomness in the system. 5 I sample I remperature 1--i I~I ~-~~ ,7

6 BITS -Pilani, Dubai Dubai International Academic City Dubai ~" What are the roles of TQM & QC in quality management? Draw a fish bone diagram to identify the problems timely delivery of pizza by the delivery boy.. Explain how the house of quality matrix helps in product development with an example. ~.