Which of the following is NOT a type of non-destructive testing (NDT)?

Lithographic Testing is not recognized as a type of non-destructive testing (NDT). Non-destructive testing encompasses various methodologies that assess materials and components without causing any damage, ensuring their integrity and reliability. Examples of NDT include Magnetic Particle Inspection, Liquid Penetrant Testing, and Ultrasonic Testing, all of which are well-established techniques used to detect flaws, assess material properties, or ensure structural integrity.

Magnetic Particle Inspection involves the application of magnetic fields and iron particles to identify surface and near-surface defects in ferromagnetic materials. Liquid Penetrant Testing uses a penetrant dye to reveal surface-breaking defects by observing where the dye is drawn into the material. Ultrasonic Testing employs high-frequency sound waves to detect internal flaws and measure material thickness. These methods are integral to quality assurance in various industries, highlighting the importance of easily identifying defects without damaging the tested material. Thus, Lithographic Testing does not fall within the realm of NDT, making it the correct choice in this context.