This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
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Code: 9D15106c
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M.Tech I Semester Supplementary Examinations August/September 2018
NON DESTRUCTIVE EVALUATION
(Machine 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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- With neat sketches, explain the principle, operational steps advantages and limitations of fluorescent dye penetrant inspection.
- Discuss the importance of the physical characteristics of source, object and film and geometrical relationships between them. Explain the problems encountered in image or shadow formation.
- Explain about, how will:
- Image enlargement.
- Image unsharpness are controlled in X-ray radiography.
- Draw a sketch of typical IIW standard reference block and explain the usage of this block for checking the following:
- The index point and beam angle of an angle beam probe.
- The sensitivity of normal beam probes.
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- Explain the various methods used in Ultrasonic with its special applications.
- Explain the working principles of optical holography and discuss its advantages and disadvantages.
- Suggest an appropriate NDT technique for each of the following inspection requirements:
- Inspection of pitting corrosion marks inside long seamless pipes.
- Identifying the thickness variation of tubular products in mass production. Justify your suggestion with the procedural aspects specific to each case.
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- Explain the testing procedures for inspection of the following:
- A butt welding of 100 mm thick made over single V groove, using ultrasonic test.
- A circumferential butt weld in a pressure vessel of 1500 mm diameter using gamma ray radiography.
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This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)