Download JNTUA M.Tech 2nd Sem Supply 2018 Feb 9D15108 Non Destructive Evaluation Question Paper

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Code: 9D15108

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M.Tech II Semester Supplementary Examinations February 2018

NON-DESTRUCTIVE EVALUATION

(Production Engineering & Engineering Design)

(For students admitted in 2013, 2014, 2015 & 2016 only)

Time: 3 hours

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Max. Marks: 60

Answer any FIVE questions

All questions carry equal marks

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1. (a) Explain briefly the principle of magnetic particle inspection.
   

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   (b) What are sensing elements as applied to eddy current test system and with sketches explain the encircling and surface testing coils?
2. (a) Briefly explain the principle of production of X-rays and explain how the cathode electron loses its energy at the anode in production of X-rays.
   (b) Enumerate the factors to be considered in the selection of X-ray unit.
3. (a) Explain the film graininess signal to noise ratio in radiographs.
   (b) Explain briefly the sensitometric characteristics of X-ray films.

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4. Explain the different types of search units that are used in ultrasonic inspection with sketches.
5. Explain the following with neat sketches:
   (a) Acoustical holography.
   (b) Optical holography.
6. What are the different types of ultrasonic scanning system? Explain the C-scan display system and functions of various controls.

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7. Discuss the applications of NDT as applied to castings with relevant sketches.
8. Discuss clearly the non-destructive testing in flow analysis of pressure vessels with appropriate sketches.

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