GTU Mechanical Engineering (Semester 7)
Quality And Reliability Engineering
May 2015
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Enlist the principles of TQM. What are the barriers to the implementation of TQM in an organization?
7 M
1 (b) (i) What is Quality Management? Briefly discuss the objectives of quality management?
4 M
1 (b) (ii) Define Quality Control. What are the objectives of quality control?
3 M

2 (a) Explain PDCA cycle in detail.
7 M
Answer any two question from Q2 (b) or Q2 (c)
2 (b) Define the term Quality. State and explain the different dimensions of quality.
7 M
2 (c) Discuss 5-S for house keeping with suitable example and explain its role in improving quality and productivity.
7 M

Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a) Explain the following new quality improvement techniques by suitable example.
1) Affinity Diagram
2) Process Decision Program Chart
7 M
3 (b) What is Business Process Reengineering? Explain the principles, methodology and limitation of Business Process Reengineering.
7 M
3 (c) Identify and explain three main types of benchmarking. In what circumstances would each type be most appropriate? What are the advantages of using benchmarking as an improvement tool?
7 M
3 (d) What is Six Sigma? Explain the concepts, feature and benefits of Six Sigma to an organization.
7 M

Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a) Explain the steps for implementation of a Quality Management System and also state the benefits of implementing it.
7 M
4 (b) What are the objectives of Total Productive Maintenance (TPM)? Briefly explain the eight pillars of TPM.
7 M
4 (c) How Just In Time (JIT) production system can be achieved in an organization? What are the merits and demerits of JIT production system?
7 M
4 (d) Explain Taguchi's quality loss function and its advantages. How Taguchi's technique helps achieving Robust Design of a product?
7 M

Answer any two question from Q5 (a), (b), (c) or Q5 (d), (e)
5 (a) (i) State only the usefulness of following quality control tool: Pareto diagram, Cause and effect diagram, Histogram and Check sheet.
4 M
5 (a) (ii) Draw and explain the Bathtub curve.
3 M
5 (b) A controlled manufacturing process is 0.3% defective. What is the probability of taking 2 or more defectives from a lot of 100 pieces?
1)By using Poisson approximation.
2) By using Binomial distribution
7 M
5 (c) (i) A lot of 25 articles contain 3 defective. A sample of 5 is selected at random from the lot for inspection. What are the respective probabilities of 0, 1, 2 & 3 defectives occurring in sample of 5?
4 M
5 (c) (ii) State the three fundamental laws of probability.
3 M
5 (d) Differentiate between Continuous probability distribution and discrete probability distribution giving their examples.
3 M
5 (e) For the logic diagram shown in figure, construct the fault tree.

4 M



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