Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 4 (Q.No. 35)

Engineering Materials

35.

In a hardening process, the hypo-eutectoid steel is

heated from 30° C to 50° C above the upper critical temperature and then cooled in still air

heated from 30° C to 50° C above the upper critical temperature and then cooled suddenly in a suitable cooling medium

heated from 30° C to 50° C above the upper critical temperature and then cooled slowly in the furnace

heated below or close to the lower critical temperature and then cooled slowly

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

5 comments Page 1 of 1.

Venkat said: 7 years ago

Yes, Correct @Prabha. In hardening quick cooling takes place.

Prabha said: 8 years ago

Absolutely right answer is B because hardening or quenching process cooled suddenly.

Prasanta jana said: 8 years ago

I thinks B is correct answer.

Ashok saini said: 8 years ago

According to me, answer c is correct.

Arun said: 8 years ago

According to me, the correct answer is option C.

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