Computer · Concrete Technology
निम्नलिखित कंक्रीट ग्रेडों में से किसका नाममात्र मिश्रण अनुपात 1 : 1.5 : 3 (सीमेंट : महीन मिलावा : मोटा मिलावा) होता है?
- 1M40
- 2M20✓
- 3M30
- 4M10
सही उत्तर देखें
M20
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