Medical MCQs Medical Mcqs
Q Heat hardening is the process done at_______________?
  • A A. Heating 750°c and slowly cooling to zero degree
  • B B. Heating quickly upto 450°c followed by sudden quenching
  • C C. Heating upto 250°c for 15 to 30 min
  • D D. Heating at 750°c and then quenching to room temperature
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