Computer · Building Materials
भारतीय मानक (IS) विनिर्देशों के अनुसार, प्रथम श्रेणी की पकी हुई ईंटों की न्यूनतम संपीड़न सामर्थ्य (compressive strength) कितनी होनी चाहिए?
- 1140 kg/cm2 (14.0 N/mm2)
- 2125 kg/cm2 (12.5 N/mm2)
- 3100 kg/cm2 (10.0 N/mm2)✓
- 475 kg/cm2 (7.5 N/mm2)
सही उत्तर देखें
100 kg/cm2 (10.0 N/mm2)
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