Requires knowledge of non-destructive testing knowledge of the following processes/techniques: visual inspection, optical interforometric testing, holographic NDT, speckle NDT, radiography, ultrasonic, penetrant flaw detection, magnetic particle detection, eddy currents,
1. To draw a rough 3D schematic diagram of the external shape of specimen(any specimen) and give its dimensions.
2. Draw the defect on the diagram, giving location and dimension. (defects can be crack, lack of fusion, etc)
3. For each NDT technique mentioned above. describe their ability to detect, locate and determine, the size and character of the defect (if not able, why not) with reasons where appropriate. State best technique for defect.
b) repeat (a) with a subsurface defect.