VALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK

Size: px

Start display at page:

Download "VALLIAMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK"

Brooke O’Connor’
5 years ago
Views:

VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur 603 203 DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK VIII SEMESTER ME

1 VALLIAMMAI ENGINEERING COLLEGE SRM Nagar, Kattankulathur DEPARTMENT OF MECHANICAL ENGINEERING QUESTION BANK VIII SEMESTER ME 6019-NON DESTRUCTIVE TESTING AND MATERIALS Regulation 2013 Academic Year Prepared by Mr.R.SRINIVASAN Assistant Professor/MECHANICAL

Manufacturing defects as well as material characterization.

2 VALLIAMMMAI ENGINEERING COLLEGE DEPARTMENT OF MECHANICAL ENGINEERING M.E (CAD/CAM) ME 6019-NON DESTRUCTIVE TESTING AND MATERIALS QUESTION BANK UNIT-1 OVERVIEW OF NDT NDT Versus Mechanical testing, Overview of the Non Destructive Testing Methods for the detection of Manufacturing defects as well as material characterization. Relative merits and limitations, Various physical characteristics of materials and their applications in NDT, Visual inspection Unaided and aided. PART-A 1 Describe destructive testing BT1 2 Describe non-destructive testing BT 2 3 List the advantages of NDT BT1 4 Demonstrate the methods of NDT 5 Differentiate destructive testing and non-destructive testing BT 2 6 Demonstrate the transformation or allotropic transformation 7 Define brittleness and hardness BT1 8 List the factors affecting mechanical properties 9 Classify the types of fracture in materials BT 4 Analyze 10 Describe brittle fracture 11 Describe ductile fracture 12 List the important destructive test carried out on material BT1 13 Discuss visual testing BT1 14 Demonstrate the visual testing techniques 15 Define direct viewing BT1

3 16 Define remote viewing BT1 17 List the application of visual inspection 18 What are the advantage and disadvantage of visual inspection BT 2 19 List out the service conditions that leads to material failure BT1 20 List the NDT method used to detect internal defects. BT1 PART-B 1 (i) Compare the destructive testing methods and non-destructive testing methods with respect to following (i) Based on its advantage and limitation. (10) (ii) Based on its application (6) 2 Demonstrate the comparison between destructive and Non-destructive test. 3 Explain the following with suitable sketch BT 2 (i) Elasticity (ii) Hardness (iii) Brittleness (iv) Ductility (v) Malleability 4 Explain with suitable sketch about the Casting defects during casting BT 4 process. 5 Illustrate the working principle of VT with suitable sketch BT3 6 Write short notes about allotropic transformation 7 Describe the condition for non destructive testing BT 2 8 Write short about the non destructive testing methods and the application of each techniques. 9 Explain the following BT 4 Analyze (i) Application of Visual inspection (ii) Advantage and disadvantage of Visual inspection 10 Summarize the various non destructive methods which is used for detect BT2 the material defect 11 Explain With the case study discuss the application of visual inspection process. BT 4 Analyze

4 12 Discuss various optical aids used in visual inspection techniques. BT 2 13 Explain with suitable sketch about the welding defects during welding process. 14 Explain the following with suitable sketch (i) Direct viewing visual techniques (8) (ii) Remote viewing visual techniques (8) UNIT-2 SURFACE NDE METHODS BT 4 BT1 Analyze Liquid Penetrant Testing - Principles, types and properties of liquid penetrants, developers, advantages and limitations of various methods, Testing Procedure, Interpretation of results. Magnetic Particle Testing- Theory of magnetism, inspection materials Magnetisation methods, Interpretation and evaluation of test indications, Principles and methods of demagnetization, Residual magnetism. PART-A 1 List the types of defects analysis in LPT method 2 List the steps of dye penetrant inspection 3 Name the different liquid penetrants. BT 2 4 Classify the types of IR sensor 5 Describe the working principle of IR sensor 6 Describe the principles of liquid penetrant testing 7 Summarize the types of liquid penetrant inspection steps BT2 8 Summarize the application of liquid penetrant testing BT2 9 What are the advantage of LPT 10 What are the disadvantage of LPT methods 11 Classify the types of penetrant materials 12 Pointout the method used to remove the excess penetrant during inspection BT4 Analyze 13 Define developers BT1 14 Name the types of developer BT2 15 Summarize the characteristics of liquid penetrant BT2 16 Describe non aqueous developers BT4 Analyze

5 17 Name the magnetic particle used in MPT BT2 18 Define direct current techniques BT1 19 List the application of MPT BT1 20 Describe the principle of MPT BT2 PART-B 1 Illustrate with neat sketching about the principle of liquid penetrant testing (13) 2 (i) Summarize the types of penetrant (3) BT2 (ii) Discuss about three types of penetrant (10) 3 Explain the testing procedure for liquid penetrant testing BT 2 4 (i) Explain in detail about penetrant testing material.(10) BT 2 (ii) Summarize the advantage of LPT. (3) 5 Explain with suitable sketch of various stages of liquid penetrant testing. 6 Explain the testing procedure for liquid penetrant inspection with suitable sketch BT 4 Analyze 7 (i) Explain in detail about types penetrants used for liquid penetrant testing. (10) (ii) Summarize the disadvantage of LPT. (3) 8 (i) Summarize the characteristics of liquid penetrant. (9) BT 2 (ii) Summarize the applications of LPT. (5) 9 (i) Describe in detail about types of developers used in LPT. (10) BT 2 (ii) Summarize the types of developer used in LPT. (3) 10 Explain with suitable sketch about the working principle of Magnetic particle inspection 11 Explain with suitable sketch about following BT 4 Analyze (i) Circular Magnetization. (7) (ii) Longitudinal Magnetization.(6) 12 illustrate with suitable sketch about following

6 (i) Magnetization of irregular parts.(8) (ii) Demagnetization. (7) 13 Discuss in detail about the general procedure of magnetic particle test. BT 2 14 Describe the following (i) Residual Magnetization. (8) (ii)application of MPT. (5) UNIT III THERMOGRAPHY AND EDDY CURRENT TESTING (ET) Thermography- Principles, Contact and non contact inspection methods, Techniques for applying liquid crystals, Advantages and limitation - infrared radiation and infrared detectors, Instrumentations and methods, applications. Eddy Current Testing-Generation of eddy currents, Properties of eddy currents, Eddy current sensing elements, Probes, Instrumentation, Types of arrangement,applications, advantages, Limitations, Interpretation/Evaluation. PART A 1 Define thermography 2 Describe pulse thermography BT 2 3 List the advantage of thermography 4 Describe the characteristics of measuring instruments BT 2 5 Define liquid crystal 6 List the parameters which describe the liquid crystal 7 Classify liquid crystal nesophase topology 8 Summarize the application of liquid crystal thermography method BT 2 9 Describe the application of thermography BT1 10 Write short notes on Infrared radiation 11 Describe the principle of eddy current method BT 2 12 List the eddy current sensing elements BT1 13 Summarize are the disadvantage of eddy current inspection BT 2 14 Classify eddy current measurements 15 List the types of probe used in eddy current inspection BT1

7 16 Demonstrate the principle hall effect BT 4 17 Write the application of eddy current inspection 18 What are the disadvantage of eddy current inspection method BT 5 Evaluate 19 Write the PDM application 20 Summarize the limitation of eddy current inspection method BT 2 PART-B Q.No BT Level Competence 1 Illustrate with suitable sketch about types of thermography. 2 Demonstrate about contact and Non-contact inspection techniques used in NDT 3 Write short notes on the following (i) Color change thermography (8) (ii) Characteristics of measuring instruments (5) 4 (i) Describe the advantage of non-contact inspection over contact (ii) inspection techniques. (8) Describe the parameter which consider for defining the liquid crystals (5) 5 Write short notes on mesophases of liquid crystal (i) Nematic phase (7) (ii) Smectic phase (6) 6 Write short notes on mesophases of liquid crystal (i) Cholesteric phases (7) (ii) Columnar phase (6) BT 2 7 Describe with suitable sketch about working principle of Infrared Sensor. BT 2 8 Write short notes on the following (i) IR transmitter (7) (ii) IR receiver (6) 9 Illustrate with suitable sketch about working principle of Eddy current non destructive testing. 10 Write short notes on the following

8 (i) Inductance (ii) Induction (iii) Inductive reactance 11 Explain with neat sketch about the types of eddy current instrument based on probes in eddy current non destructive testing. BT 4 Analyze 12 (i) Write the application of eddy current non destructive testing (7) (ii) Write short notes about Infrared detectors (6) 13 Illustrate with neat sketch about the infrared testing methods 14 Discuss about the various types of coils used for Eddy current inspection BT 2 UNIT IV ULTRASONIC TESTING (UT) AND ACOUSTIC EMISSION (AE) Ultrasonic Testing-Principle, Transducers, transmission and pulse-echo method, straight beam and angle beam, instrumentation, data representation, A/Scan, B-scan, C-scan. Phased Array Ultrasound, Time of Flight Diffraction. Acoustic Emission Technique Principle, AE parameters, Applications. Q.No BT Level Competence 1 Define ultrasonic 2 List the method used for producing ultrasonic waves 3 Summarize the properties of ultrasonic waves Analyze 4 Describe the principle of magnetostruction oscillator BT 2 5 Classify different types of waves BT1 6 Define transducer BT1 7 Name the types of ultrasonic transducer 8 Describe the principle of Piezo - electric oscillator method oscillator BT 2 9 Describe piezo electric effect BT 2 10 What are piezo-electric crystals and give example BT1 11 Describe inverse piezo-electric effect BT 2 12 Differentiate magnetostruction and piezo-electric method BT 2 13 Name the method used for detecting the ultrasonic waves BT1 14 Define cavitation BT1 15 Summarize the factors influencing in ultrasonic testing technique BT 2

9 16 Describe the principle of flaw detector BT1 17 Illustrate pulse echo method briefly. 18 Describe the principle of pulse echo method BT1 19 Define acoustic emission technique BT1 20 Describe straight beam testing techniques PART-B Q.No BT Level Competence 1 Briefly explain with suitable sketch about working principle of BT 2 Ultrasonic testing 2 Explain ultrasonic production using Magnetostuction and Piezo Electric methods. 3 Briefly explain with neat sketch about the types of transducer used in ultrasonic testing method. BT 2 4 (i) Write application of Ultrasonic testing (10) (ii) Write the limitation of Ultrasonic testing (3) 5 Discuss about various ways of data interpretation in Ultrasonic BT 2 testing 6 Describe various types of ultrasonic waves on the basis of mode of particle displacement 7 Illustrate with neat sketch about Reflection and Transmission of sound waves 8 Write short notes on (i) Phase array ultrasonic testing (ii) Crack tip diffraction 9 Illustrate with neat sketch about the following (i) A-Scan (ii) B-Scan (iii) C-Scan 10 Illustrate with suitable sketch about working principle of pulse echo method

10 11 Illustrate with suitable sketch about Acoustic emission testing technique. 12 (i) Summarize the application of acoustic emission technique (8) (ii) Write the advantage and limitation of AE technique (5) 13 (i) Explain with neat sketch about Barkausen effect (7) (ii) Limitation of Pulse echo techniques (6) 14 Illustrate with neat sketch about the angle beam shear wave transducer in Ultrasonic testing UNIT-5 RADIOGRAPHY (RT) BT 2 BT 2 Principle-interaction of X-Ray with matter, imaging, film and film less techniques, types and use of filters and screens, geometric factors, Inverse square, law, characteristics of films - graininess,density, speed, contrast, characteristic curves, Penetrameters, Exposure charts, Radiographic equivalence. Fluoroscopy- Xero-Radiography, Computed Radiography, Computed Tomography PART-A 1 Describe radiography testing 2 Describe the principles of radiography 3 Summarize the properties of X ray BT 2 4 Summarize the properties of gamma rays BT 2 5 What are the disadvantage of radiography testing 6 Define X ray radiography 7 Describe bremsstrahlung radiation BT1 8 List the factor to be considered for film selection 9 Define square law BT1 10 Describe radiography density BT1 11 Describe radiography contrast BT 2 12 What is mean by film contrast BT 2 13 Classify the types of radiographic testing 14 Describe geometric factor and screen factor BT1

11 15 Summarize the techniques used for measure radiography density BT 2 16 Define transmitted density 17 Describe xeroradiography 18 Describe computed tomography 19 Explain about working principle of CT 20 Describe about Diagnostic digital radiography BT 2 PART-B 1 Briefly explain with suitable sketch about working principle of Radio graphic testing technique 2 Illustrate with suitable sketch range and limitations of Radio graphic testing technique 3 Briefly explain interaction of X-ray with neat sketch 4 Illustrate with suitable sketch about the production of X-ray 5 (i) Describe the construction of radiographic film (8) BT 2 (ii) List the factors to be considered for selection of Radiographic film (5) 6 Illustrate with neat sketch about the characteristic curves of radio graphic film in RT. 7 Explain the various types of radiation detection image in BT 4 Analyze Radiographic testing techniques 8 Write short notes on (i) Radiographic density (ii) Radiographic contrast 9 Illustrate with neat sketch about the following (i) Fluoroscopy Radiographic system (ii) Xeroradiography 10 Illustrate with neat sketch about the (i) Stereo radiography (ii) Neutron radiography

12 11 Explain with neat sketch about the Computed Tomography BT 4 Analyze 12 Explain with neat sketch about the Computed Radiography BT 4 Analyze 13 (i) Summarize the application of Computed Radiography (ii) Summarize the limitations of Computed Radiography 14 Explain with neat sketch about the Exposure charts in Radiography testing technique. BT 2

Overview of Non-Destructive Testing and Inspection Course Syllabus

Overview of Non-Destructive Testing and Inspection Course Syllabus This course reviews the general principles of seven non-destructive testing methods and their derivative techniques The following class