TOM IMP & Assignment Q Unit-3.pdf
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B.E. Mechanical Engineering. OML751 – TESTING OF MATERIALS. UNIT-III : NON DESTRUCTIVE TESTING. UNIT-III: ASSIGNMENT & IMP QUESTIONS.
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TOM IMP & Assignment Q Unit-3.pdf
- 1. DEPARTMENT OF MECHANICAL ENGINEERING OML 751 – TESTING OF MATERIALS UNIT – III : NON DESTRUCTIVE TESTING ASSIGNMENT-III : QUESTIONS _____________________________________________________________________ YEAR: IV SEMESTER: VII Answer ALL Questions PART - A 1. List the applications and advantages of visual inspection. (Apr/May’2023) 2. State the principle of liquid penetrant testing. (Nov/Dec’2021) 3. What are the limitations of magnetic particle testing? (Nov/Dec’2020) 4. State any two applications of eddy current testing. (Nov/Dec’2020) 5. What is the purpose of lead screen in radiographic testing? (Nov/Dec’2021) 6. Write the applications of acoustic emission testing. (Apr/May’2023) 7. Write importance of NDT. 8. What are the factors affecting the choice of NDT method 9. Define Radiographic Testing. 10. Define Inherent discontinuities. PART – B & C 1. Explain the various steps involved in liquid penetrant testing with their advantages and limitations. (Nov/Dec’2020) & (Apr/May’2023) 2. Explain the procedure for determining the internal defects present in the material using radiographic testing. (Nov/Dec’2020) 3. Discuss on the effect of various parameters on the Depth of penetration in Eddy current testing. (Nov/Dec’2021) 4. Explain Magnetic particle testing and why metals with low coercive force is difficult to test in Magnetic particle inspection technique. (Nov/Dec’2021) 5. Explain the principle, advantages and limitations of Acoustic emission techniques. (Nov/Dec’2021) 6. Explain the working of a pulse echo A-scan ulrasonic test machine to find the defects in a component. (Apr/May’2023) 7. Suggest and explain the suitable technique to detect the longitudinal and transverse cracks in a welded component. (Apr/May’2023) 8. When a magnetic field strength of 0.2 Tesla is applied on an electromagnetic lens perpendicular to the electron beam direction with an applied voltage of 20 kV, what would be the radius of electron beam (Mass of electron is 9.109x10-31 kg and charge is 1.602x10-19 coulombs. (Nov/Dec’2021)