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More Metallurgical Engineering Questions
During volatile matter content determination, air dried coal sample is heated for 7 minutes at a constant temperature of . . . . . . . . °C.
The velocity of thermal (slow) neutrons triggering nuclear fission reaction (having energy equal to 0.025 eV) is about . . . . . . . . metres/second.
Thin layer of material B (of total amount m) is plated on the end faces of two long rods of material A. These are then joined together on the plated side (see the figure below) and heated to a high temperature. Assuming the diffusion coefficient of B in A is D, the composition profile CB along the rod axis x after a time t is described by
Advantages of Casting are: (I) Can create complex part geometries, 3-D shapes (II) Can create both external and internal shapes and large hollow shapes (III) It is a near net shape process for small to large parts (IV) Very good mechanical strength can be obtained for as-cast component
Match the NDT method in Group 1 with the items in Group 2 . Group 1 Group 2 P. Ultrasonic testing 1. Core shift in castings Q. Dye penetrant testing 2. Surface defects in HSLA welds R. Magnetic particle inspection 3. Fillet welds S. Radiography 4. Hot crack in austenitic SS welds