53) A hole is to be made on mild steel with a 12 mm diameter reamer. If the under size is 0.3 mm and ifthe oversize is 0.05 mm, what will be the diameter of the drill for drilling the hole before reaming?
Answer is:
11.65 mm
Related ISRO Technician-B Fitter Question Paper - 2019 (Set - 1) with Answer Key
Answer is:
17.32
Answer is:
Cracks below the surface
Explanation:
Ultrasonic testing is done in materials to determine cracks below the surface.
