FACULTY OF ENGINEERING B.E. 4/4 (EE / Inst. ) II – Semester (Main) Examination, April / May 2013 Subject : Optimization Methods
(Elective – II)
Time : 3 hours
Max. Marks : 75
Note: Answer all questions from Part–A and answer any FIVE questions from Part–B. PART – A (25 Marks) 1. Define optimization.
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2. State five engineering applications of optimization.
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3. Define saddle point.
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4. Prove that the dual of dual is primal.
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5. Why is Powell's method called a pattern search method?
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6. Explain the method of computation of [B i] in Quasi Newton method.
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7. What is an one dimensional minimization problem?
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8. What is a unimodal function? Explain in brief.
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9. Define the following : a) Principal of optimality
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b) Monotonic function
10. State two engineering examples of serial system that can be solved by dynamic programming.
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PART – B (50 Marks) 11. Find the dimensions of a cylindrical tin with top and bottom made up of sheet metal to maximize its volume such that the total surface area is equal to A 0 = 24 π. Use Lagrange multiplier method. 10 12.a) Explain the computational procedure of simplex method with the flow chart.
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b) What are the advantages and disadvantages of revised simplex method over the original simplex method? 3 13.a) Explain the procedure for Fibonacci method with the flow chart.
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b) What is the difference between Fibonacci method and Golden section method? 3 14.
0 Minimize f ( x1 , x2 ) x1 x2 2 x12 2 x1 x2 x22 starting from the point x1 using 0 Fletcher – Reeves method. 10 ..2
Code No. 2295 -215.a) With an example explain how a final value problem is converted into an initial value problem. b) Explain different types of multistage decision problem.
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0 16. Minimize f 4 x12 3x22 5 x1 x2 8 x1 starting from the point x1 using Powell's 0 method. 10 17.a) Explain the procedure for univariate method.
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b) Minimize Z = x1 + x2, subject to the constraints 2x1 + x2 ≥ 4, x1 + 7x2 ≥ 7 and x1, x2 ≥ 0 using two phase simplex method.
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