Q: Choose appropriate Mixed design Grades (as per IS : 456-2000) for ordinary concrete : साधारण कंक्रीट के लिए उपयुक्त मिश्रण अभिकल्पन ग्रेड (IS : 456-2000 के अनुसार) चुनिए–
A.
M20, M25, M30
B.
M35, M45, M55
C.
M10, M15, M20
D.
M45, M50, M55
Correct Answer:
Option C -
Explanations:
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