Chemical Engineering :: Chemical Engineering Basics-2
- The noble metals
- Filler material used in welding should have __________ as compared to the parent metal to be welded.
- The leaching solvent used in Baeyer's process for the purification of bauxite is
- The unit of gc is
- A thermally thin body is the one for which
- Euler number is defined as the ratio of inertia force to __________ force.
- Existence of velocity potential implies that the fluid is
- The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the
- Pick out the wrong statement.
- Preheating before welding is done to
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A.
Both annealing and normalising release the internal stresses of the material besides improving the mechanical properties |
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B.
Low carbon steel does not respond to the heat treatment for hardening of the material, hence it is subjected to case hardening or surface hardening processes like cyniding, carburising, nitriding etc. |
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C.
Induction hardening and flame hardening techniques are also used for surface hardening |
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D.
Martempering of a material is a hardening process |