Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January ME 7th Sem 72010 Non Destructive Testing Previous Question Paper
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (ME) (2012 Onwards E-II) (Sem.?7)
NON-DESTRUCTIVE TESTING
Subject Code : DE/ME-2.4
M.Code : 72010
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write short notes on following :
1.
Differentiate between destructive and non-destructive testing.
2.
Give salient features of Acoustic Emission Technique.
3.
Name two of the NDT techniques that can be used to detect internal defects.
4.
Explain the principle of Eddy current testing & its applications.
5.
Which materials are subjected to magnetic particle testing?
6.
State safety precaution in Industrial radiography.
7.
What is concrete test hammer?
8.
Which NDT method is used for measuring thickness of materials?
9.
Differentiate between ordinary penetrant testing and fluorescent penetrant testing.
10. Explain the term subject contrast and IQI in radiographic testing.
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SECTION-B
11. State how different NDT techniques are selected for defect detection.
12. Explain principle of radiographic testing and give its applications and limitations.
13. Explain various methods of magnetization & demagnetization commonly practiced in
Non-destructive testing procedure.
14. Explain the principle of Ultrasonic Testing. Give its applications, advantages and
limitations.
15. Give a list of leak testing methods highlighting their principle and applications.
SECTION-C
16. a) Explain the nondestructive method by which moisture distribution in wood can be
predicted.
b) State dye penetrant test principle and explain capillary action, contact angle, adhesive
force and cohesive force. Mention limitations of dye penetrant test.
17. a) Discuss the defect detection methods for ferrous and nonferrous materials.
b) What is photoelastic material? Explain the phenomena of stress analysis using
photoelasticity giving a neat sketch.
18. a) Describe sonic material analyzer, its working, applications using an appropriate
sketch.
b) Explain with suitable sketch: Circular Magnetization, and Longitudinal
Magnetization.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
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This post was last modified on 26 June 2021