Download AKTU B-Tech 8th Sem 2015-16 EME 062 Non Destructive Testing Question Paper

EME-062

(Following Paper ID and Roll No. to be filled in your Answer Books)

Paper ID: 140858

B.TECH.

Theory Examination (Semester-VIII) 2015–16

NON-DESTRUCTIVE TESTING

Time: 3 Hours

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Max. Marks : 100

Section-A

Note: All parts carry equal marks. Write answer of each part in short.

1. Differentiate between DT & NDT.
2. Name different types of Penetrant.
3. What is Fluorescent Dye?

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4. What do you mean by radiograph?
5. Differentiate between ferro-magnetic & Non-ferromagnetic materials.

Section-B

Note: Attempt any five questions from this section.

1. (a) With a neat sketch, explain the principle, equipment, and methodology used in X-ray radiography test.
2. What are the advantages, disadvantages, and limitations of ultrasonic testing?

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3. What is piezoelectricity? Explain the method of ultrasonic testing with a neat sketch.
4. With a neat sketch, explain the principle and working of eddy current inspection.
5. What about the visual inspection method and optical method?
6. What are the different types of penetrants used in Liquid Penetrant testing? Explain the technique of excess penetrant removal from the workpiece surface.
7. What are the advantages, disadvantages, and limitations of Magnetic Particle inspection?

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8. Write short notes on the following:
   a) Compton scattering
   b) Rayleigh scattering

Section-C

Note: Attempt any two questions from this section.

1. What are the different sources of radiation used in radiographic inspection methods? Describe the advantages of gamma radiography over X-ray radiography.

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2. What are the basic processing steps of a liquid penetrant inspection? What are the properties the penetrants must have in order to work well?
3. Explain the steps followed when conducting magnetic particle inspection? Explain the importance of magnetic field direction in flaw detection.

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