00000ME367121904 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Fifth semester B.Tech degree examinations (S) September 2020

Course Code: ME367
Course Name: NON-DESTRUCTIVE TESTING
Max. Marks: 100 Duration: 3 Hours

PARTA
Answer any three full questions, each carries 10 marks. Marks
1 a) Differentiate between Destructive and Non- Destructive Testing with examples. (5)
b) What are the various applications of NDT? (5)
2 2) What are the different visual aids used in visual inspection? Explain fibroscope (5)
and boroscope in detail.
b) Explain the working of computer enhanced visual inspection system witha neat (5)
diagram.
3 a) What are the properties required for a good penetrant used in Liquid Penetrant (5)
Inspection (LPI)? Differentiate visual penetrants and fluorescent penetrants.
b) What is the use of developer in Liquid Penetrant Inspection? Explain the (5)

different types of developers.

4 ஐ Define the terms dwell time and development time. (2)
b) Explain the various methods of Liquid Penetrant Inspection with flow chart. (8)
PARTB

Answer any three full questions, each carries 10 marks.

5 ഒ Whatis the principle of Magnetic Particle Inspection (MPI)? (2)
b) Explain the following magnetization techniques used in Magnetic Particle (8)
Inspection with neat sketches: (i) Head shot technique (ii) Magnetization using
prods (iii) Coil shot technique (iv) Central conductor technique.
6 ച What are magnetic field indicators? Explain the use of Pie gauge in Magnetic (5)
Particle Inspection.
b) List the advantages and disadvantages of Magnetic Particle Inspection. (5)
7 a) Whatare the different modes of wave propagation in Ultrasonic Testing (UT)? (5)

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