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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.
7
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.
7
b) When might you choose an exponential distribution over
a Weibull distribution for Modeling repair times?
7
3.
a) Describe the gamma distribution and its relevance to
modeling repair Times.
7
b) Explain the data requirements for estimating parameters
of repair time distributions.
7
4.
a) Discuss methods for estimating failure rates, including
historical data analysis and reliability testing.
7
b) Explain how environmental factors can influence the
reliability of a system?
7
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?
7
b) Elaborate on the Duane curve and its relevance in
reliability engineering.
7
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?
7
b) Discuss specific methodologies and tools used in risk
assessment within the context of reliability.
7
7.
a) Discuss the impact of downtime on production efficiency
and the financial performance of a company.
7
b) Compare and contrast preventive, predictive and proactive
maintenance policies, highlighting their advantages and
limitations.
7
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?
7
b) Discuss the Key Performance Indicators (KPIs) used in
TPM for evaluating the effectiveness of maintenance
management practices.
7