Steel and concrete are same Steel is lower than that for concrete Steel is higher than that for concrete None of the above
Answer Discuss in Comment
32 liters 28 liters 30 liters 34 liters
± 5% of average ± 15 % of average ± 20% of average ± 10% of average
Inversely proportional to square root of compressive strength Inversely proportional to compressive strength Directly proportional to square root of compressive strength Directly proportional to compressive strength
Less than 12 Less than 18 Between 18 and 24 More than 24
15 dia 20 dia 24 dia 30 dia
4% 8% 2% 6%
Lower compressive strength of concrete Lower tensile strength of steel Higher compressive strength of concrete Higher tensile strength of steel
Increased by 25% for bars in compression Increased by 10% for bars in compression Decreased by 25% for bars in compression Decreased by10% for bars in compression
6 mm 8 mm 12 mm 16 mm
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