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Total No. of Questions: 8]
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Roll No .....................................
MMIP-301(C)
M.E./M.Tech., III Semester
Examination, November 2023
Reliability and Total Productive Maintenance
(Elective - I)
Time: Three Hours
Maximum Marks: 70
Note:
i) Attempt any five questions.
ii) All questions carry equal marks.
1.
a) Describe what you understand by reliability functions. Deduce the expression for reliability function in terms of Hazard rate.
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b) Demonstrate the importance and different aspects of regarding mortality curve.
7
2.
a) The failure rate of a component, in failures per year, is given by: h(t) =0.003t2, t≥0. Find an expression for the reliability function.
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b) When might you choose an exponential distribution over a Weibull distribution for Modeling repair times?
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3.
a) Describe the gamma distribution and its relevance to modeling repair Times.
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b) Explain the data requirements for estimating parameters of repair time distributions.
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4.
a) Discuss methods for estimating failure rates, including historical data analysis and reliability testing.
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b) Explain how environmental factors can influence the reliability of a system?
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5.
a) Discuss the significance of stand by systems in improving overall system reliability. What Challenges and considerations are involved in implementing stand by configurations?
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b) Elaborate on the Duane curve and its relevance in reliability engineering.
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6.
a) Discuss the utility of Fault Tree Analysis (FTA) in reliability management. How does FTA help in analyzing the logical relationships between events leading to system failures?
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b) Discuss specific methodologies and tools used in risk assessment within the context of reliability.
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7.
a) Discuss the impact of downtime on production efficiency and the financial performance of a company.
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b) Compare and contrast preventive, predictive and proactive maintenance policies, highlighting their advantages and limitations.
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8.
a) Explore the role of cleanliness and housekeeping in Total Productive Maintenance. How do clean and organized workplaces contribute to improved equipment reliability and overall productivity?
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b) Discuss the Key Performance Indicators (KPIs) used in TPM for evaluating the effectiveness of maintenance management practices.
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