If a sample of steel shown excessive hardness after tempering the probable cause could be

Metallurgy Mcqs
BILAL KHATTAK0

A.Insufficient holding time during tempering
B.Excessive proportion of alloying elements
C.High temperature during tempering
D.Change in volume during cooling
E.None of the above

Related Mcqs:

  1. If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be
  2. Insufficient hardness after tempering may be due to
  3. Cracks of a vertical nature and dark coloured fissures in a sample of hardened steel indicate that
  4. The hardness of steel depends on
  5. If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:
  6. According to Amagat’s law
  7. The maximum hardenability of any steel depends on
  8. The critical points for steels
  9. Killed’ steel is
  10. In carbon steel castings

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