Computer · Building Materials
डॉरी के परीक्षण उपकरण (Dorry's testing machine) का उपयोग पत्थरों के किस परीक्षण के लिए किया जाता है?
- 1जल अवशोषण परीक्षण (Water absorption test)
- 2पत्थर का संघात परीक्षण (Impact test)
- 3पत्थर का कठोरता परीक्षण (Hardness test)✓
- 4पत्थर का दलन परीक्षण (Crushing test)
सही उत्तर देखें
पत्थर का कठोरता परीक्षण (Hardness test)
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