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Saturday, December 26, 2015

MATERIALS AND PROCESSES FOR SENSORS,University Of Pune Question Paper,2010 Question Paper,S.E. (Instrumentation and Control) (Semester – I)

University Of Pune Question Paper
S.E. (Instrumentation and Control) (Semester – I) Examination, 2010
MATERIALS AND PROCESSES FOR SENSORS
(2003 Course)
Time : 3 Hours Max. Marks : 100
 Instructions : 1) Answer 3 questions from Section I and 3 questions from
Section II.
2) Answers to the two Sections should be written in separate
books.
3) Neat diagrams must be drawn wherever necessary.
4) Black figures to the right indicate full marks.
5) Assume suitable data, if necessary.
SECTION – I
1. a) Explain the electrical and mechanical properties of conductor. 8
b) Enlist the guidelines for material selection of mercury filled thermometer. 8
OR
2. a) Explain the properties and applications of Tungsten. 8
b) Enlist the guidelines for material selection of mercury filled thermometer. 8
3. a) Explain the effect of temperature on dielectric material. 8
b) Enlist the applications of piezoelectric material. 8
OR
4. a) Explain the applications of dielectric material. 8
b) Explain the properties of Elastic materials. 8
5. a) Explain the types of Corrosion. 8
b) What is corrosion rate ? Explain its significance in engineering application. 6
c) Which are the factors affecting the protectiveness of the oxide film ? 4
OR
6. a) List various methods of corrosion control and explain any two of them in
detail. 10
b) Explain the term service performance. 8
SECTION – II
7. a) Explain the properties of magnetic materials. 8
b) Give properties and applications of soft and hard magnetic materials. 8
OR
8. a) Discuss ferromagnetic material and hysteresis in ferromagnetic materials. 8
b) Discuss the material selection criteria for LVDT. 8
9. a) Enlist various materials used for Laser and compare the performance of Lasers
based on spectral response and optical power. 8
b) Write a note on photosensitive materials. 10
OR
10. a) What are various requirements of fiber optic materials ? 8
b) Write a note on radioactive materials. 10
11. a) Explain anodizing. 8
b) What is electroplating ? Explain its use and any one technique in detail. 8
OR
12. a) Compare thick and thin film technology. 8
b) Write a note on Thermal Spraying. 8
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