If a sample of steel shows unsymmetrical deformation of a piece in quenching, the probable cause could be

Metallurgy Mcqs
BILAL KHATTAK0

A.Excessive proportion of alloying elements
B.Non-uniform heating or cooling
C.Impure quenching oil
D.Low temperature during heating
E.Low specific heat of quenching oil

Related Mcqs:

  1. If a sample of steel shown excessive hardness after tempering the probable cause could be
  2. The hardness of steel depends on
  3. Cracks of a vertical nature and dark coloured fissures in a sample of hardened steel indicate that
  4. If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT:
  5. Warping of articles during heat treatment may be due to
  6. Warping may be avoided when quenching a long slender piece of work by
  7. If a piece of steel is reheated to a temperature of 200?C to 250?C immediately after quenching, the process is known as
  8. In an engine shows lack of power on running the probable cause could be
  9. Local hardening of steel can be done by all of the following EXCEPT:
  10. Quenching cracks during heat treatment can be minimised:

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