F 03000ME376052003 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Sixth Semester B.Tech Degree (Hons.) Examination June 2020

Course Code: ME376
Course Name: Maintenance Engineering
Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any three full questions, each carries 10 marks. Marks

1 a) What is the significance of specifying the reliability of an item? Will it survive (5)
the term?

b) Ten transformers were tested for 500 hours each within the prescribed operating (5)
conditions, and one transformer failed exactly at the end of the 500 hours
exposure. What is the failure rate for this type of transformer?

2 ച Explain how reliability, availability & maintainability (RAM) are interrelated. (5)

b) Compare the terms operational availability and inherent availability with (5)
examples

3 9) Compare the effects of break down maintenance and corrective maintenance (4)
activities

b) How thermal monitoring helps in condition monitoring? What are the (6)
advantages of Thermal condition monitoring? Illustrate its application in any
specific area.

4 a) List the usual leakage monitoring methods. Give examples for the industries (4)
where leakage monitoring is important

b) What are the common steps followed in executing condition based maintenance )6(
system?

PART 13
Answer any three full questions, each carries 10 marks.
5 983) Sketch a schematic arrangement for vibration analysis and describe its essential (5)

elements.
b) Explain wear debris analysis used for lubrication monitoring. (5)
6 9) List and brief the various vibration transducers used for vibration monitoring. (5)
b) Explain briefly about ferrography used in lubrication monitoring. (5)
7 Describe the concept of event tree analysis with suitable example. (10)

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