Introduction: Non-Destructive testing - Relative Merits and Limitations - NDT vs
Mechanical testing. Dry technique and Wet technique – Principle – Applications -
Advantages and Limitations. Dyes - Developers – Cleaners. Fluorescent penetrant
test. Liquid penetrant inspection.
Radiography: X-rays and Gamma rays, Properties of X-rays relevant to NDE -
Absorption of rays - scattering. Types and use of Filters – screens - Geometric
factors, Film type and Processing. Characteristics of films graininess, Density,
Speed, Contrast. Characteristic curves. Characteristics of Gamma rays -
fluoroscopy – X-ray – Radiography. Safety with X-rays and Gamma rays.
Ultrasonic Testing: Types of Ultrasonic Waves - Principles of wave propagation -
Characteristics of ultrasonic waves - Attenuation. Production of ultrasonic waves -
Couplants. Inspection methods - pulse echo, Transmission and Resonance techniques.
Thickness measurement. Types of scanning. Test block - Reference blocks.
Techniques for Specific Purposes: Magnetic particle inspection - Principles –
Applications - Magnetization methods - Magnetic particles, demagnetization. Eddy
current testing - Thermal inspection Principle, Application - Instrumentation of Thermal
Inspection. Holography. Acoustic Emission. Pressure and Leak Testing. Chemical
Spot Testing. Spark Testing.