A.excessive hardness
B.oxidation
C.reduction
D.coarse grain structure
Related Mcqs:
- Formation of thick layer of scale on the surface of steel articles can be minimised by
- Heat treatment of castings is usually done for
- Warping of articles during heat treatment may be due to
- The effect f rolling on steel is
- The biochemical treatment of sewage effluents is essentially a process of
- The minimum carbon percentage required in steel so that it may respond to hardening by heat treatment is
- The process of austempering results in the formation of
- Chromium when added as an alloying element to steels
- In cold working of metals
- Cracks of a vertical nature and dark coloured fissures in a sample of hardened steel indicate that
