निम्नलिखित कथनों में से कौन सही है?

This question was previously asked in
HPCL Engineer Mechanical 04 Nov 2022 Official Paper (Shift 2)
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  1. TTT और Fe-Fe3C आरेख दोनों गैर-साम्यावस्था आरेख हैं।
  2. TTT आरेख एक साम्यावस्था आरेख है, लेकिन Fe-Fe3C आरेख एक गैर-साम्यावस्था आरेख है।
  3. TTT और Fe-Fe3C आरेख दोनों साम्यावस्था आरेख हैं।
  4. TTT आरेख एक गैर-साम्यावस्था आरेख है, लेकिन Fe-Fe3C आरेख एक साम्यावस्था आरेख है।

Answer (Detailed Solution Below)

Option 4 : TTT आरेख एक गैर-साम्यावस्था आरेख है, लेकिन Fe-Fe3C आरेख एक साम्यावस्था आरेख है।
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