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2003 Course Industrial Eng. (Elective III)

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Total No. of Questions : 6] P1207 [Total No. of Pages : 3 [3664]-148 B.E. (Mech./SW) INDUSTRIAL ENGINEERING (Elective - III) (2003 Course) (402065) Time : 3 Hours] [Max. Marks : 100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Use of logarithmic tables, slide rule, Mollier charts, electronic pocket calculator and steam tables is allowed. 5) Asssume suitable data, if necessary. 6) All questions are compulsory. SECTION - I Q1) a) Explain with suitable examples how the different tools in Industrial Engineering helps in the modern organisation to improve their performance. [8] b) What do you understand by standard performance? How it is considered in standard time calculations? [4] c) Which are different charting techniques used in method study? Explain two handed chart with suitable example. [6] OR a) What is method study? Discuss in brief the various steps involved in method study. [9] b) What are therbligs? Mention any eight therbligs with symbols and meaning. [9] Q2) a) Distinguish between time study and work sampling. b) Explain the limitations of time study. [5] [3] c) Following data pertains about time study of an industrial operation. If total allowances are 20%, calculate standard time of the operation. [8] Activity Observed time min. (cumulative) Performance Rating % 1 0.20 2 0.35 3 0.50 4 0.75 5 1.75 90 80 80 100 110 P.T.O. OR a) Define work measurement. Mention any four uses of it. [5] b) Write short notes on : [6] i) Synthetic data. ii) PMTS. c) Explain in brief Work sampling technique used to decide the standard time for the job. [5] Q3) a) Explain the scope of ergonomics in industrial engineering. [8] b) Explain the concept of Work place design . What are the factors affecting the process of design. [8] OR a) Explain the man-machine system with its characteristics. [8] b) Explain the difference between ergonomics and anthropometry. [8] SECTION - II Q4) a) Explain the concept of productivity measurement. b) Discuss in brief the methodology of Operations Research. c) Define with respect to L.P.P. i) ii) iii) iv) [5] [5] [6] Basic solution. Degenerate solution. Slack variable. Alternate optimum solution. OR a) A paper mill produces rolls of paper used in cash registers. Each roll of paper is 100 m in length and can be used in a width of 3, 4, 6 and 10 cm. The company s production process results in rolls that are 24 cm in width. Thus the company must cut its 24 cm roll to the desired widths. It has six basic cutting alternatives as follows : Cutting alternatives I II III IV V VI [3664]-148 Width of the rolls (cm.) 3 4 6 10 4 1 3 3 3 1 4 2 2 2 1 2 1 1 1 1 - Waste (cm.) 1 2 2 1 The maximum demand for four rolls is as follows : Roll width (cm.) Demand - 3 2000 4 3600 6 1600 10 500 The paper mill wishes to minimise the waste resulting from trimming to size. Write only the L.P. model for problem. [6] b) Maximise the function by simplex method. [10] Max z = 3x1 + 4x2, s.t. x1 + x2 < 450, 2x1 + x2 < 600, x1, x2 > 0. Q5) a) Explain with suitable examples the relation between plant layout and selection of material handling system. [8] b) Explain the characteristics of good plant layout. [8] OR a) State and explain various factors affecting the selection of plant location. [8] b) State and explain the principles of material handling. Q6) a) Discuss briefly the ABC analysis of inventory control. [6] [12] b) Write short notes on : i) ii) [8] P & Q system of inventory management. Master production schedule. OR [18] Write short notes on (any three) : a) Disaggregation of aggregate plan. b) JIT and KANBAN. c) Job sequencing. d) Types of production. xxxx [3664]-148 3

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