Physics · Properties of Matter
स्टील (इस्पात) की टेम्परिंग (tempering) करने का मुख्य उद्देश्य क्या है?
- 1उपरोक्त सभी✓
- 2आंतरिक प्रतिबल और विकृति (stress and strain) को दूर करना
- 3भंगुरता (brittleness) को कम करना
- 4कठोरता और दृढ़ता (toughness) को नियंत्रित करना
सही उत्तर देखें
उपरोक्त सभी
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