OML 351 Introduction to Non-Destructive Testing question papers

Question papers

• November/December 2024

  Question paper code 41573

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Syllabus

1. Unit 1: Introduction to NDT & Visual Testing9 hours

   Concepts of Non-destructive testing · relative merits and limitations · NDT Versus mechanical testing · Fundamentals of Visual Testing · vision, lighting, material attributes, environmental factors, visual perception · direct and indirect methods · mirrors, magnifiers, boroscopes and fibroscopes · light sources and special lighting

2. Unit 2: Liquid Penetrant & Magnetic Particle Testing9 hours

   Liquid Penetrant Inspection: principle, applications, advantages and limitations · dyes, developers and cleaners · Methods & Interpretation · Magnetic Particle Inspection: Principles, applications · magnetization methods · magnetic particles · Testing Procedure · demagnetization · advantages and limitations · Interpretation and evaluation of test indications

3. Unit 3: Eddy Current Testing & Thermography9 hours

   Eddy Current Testing: Generation of eddy currents · properties · eddy current sensing elements, probes · Instrumentation · Types of arrangement, applications, advantages, limitations · Factors affecting sensing elements and coil impedance · calibration · Interpretation/Evaluation · Thermography · Principle · Contact & Non-Contact inspection methods · Active & Passive methods · Liquid Crystal · Concept, example, advantages & limitations · Electromagnetic spectrum · infrared thermography · approaches · IR detectors · Instrumentation and methods, applications

4. Unit 4: Ultrasonic Testing & AET9 hours

   Ultrasonic Testing: Types of ultrasonic waves, characteristics, attenuation, couplants, probes, EMAT · Inspection methods · pulse echo, transmission and phased array techniques · types of scanning and displays · angle beam inspection of welds · time of flight diffraction (TOFD) technique · Thickness determination by ultrasonic method · Study of A, B and C scan presentations · calibration · Acoustic Emission Technique · Introduction · Types of AE signal · AE wave propagation · Source location · Kaiser effect · AE transducers · Principle · AE parameters · AE instrumentation · Advantages & Limitations · Interpretation of Results · Applications

5. Unit 5: Radiography Testing9 hours

   Sources · X-rays and Gamma rays and their characteristics · absorption, scattering · Filters and screens · Imaging modalities · film radiography and digital radiography (Computed, Direct, Real Time, CT scan) · Problems in shadow formation · exposure factors · inverse square law · exposure charts · Penetrameters · safety in radiography