QHT f
2w
- A concrete cylinder of size 15 mm diameter and 300 mm long is tested for split tensile
strength of concrete. It failed at a load of 100 kN. The split tensile strength in N/mm^2 is
(a) 0.35 (b) 0.71
(c) 1.42 (d) 2.83 - The maximum mixing time, of cement concrete, in minutes is limited to
(a) 2 (b) 4
(c) 6 (d) 10 - The maturity of concrete is expressed as
Maturity = (time × temperature)
The temperature reckoned as origin is
(a) 0°C (b) –5°C
(c) –11°C (d) –16°C - A cube of concrete as compared to cylinder of concrete is expected to have compressive
strength
(a) less by 5% (b) less by 15 %
(c) more by 5% (d) more by 15%
e()*+,2/+
- (b) 2. (c) 3. (c) 4. (b) 5. (a) 6. (b) 7. (d) 8. (a) 9. (a) 10. (b)
- (d) 12. (b) 13. (d) 14. (c) 15. (c) 16. (b) 17. (a) 18. (c) 19. (b) 20. (c)
- (d) 22. (c) 23. (c) 24. (a) 25. (c) 26. (d)