Structural Design Online Test – Paper 3

1. The compressive strength of concrete determined from a 150mm × 150mm cylinder as compared to that determined from a 150mm cube is

2. The main reason for placing the main bar at the top in the case of a cantilever slab is

3. Main reinforcement in an RCC beam is used for

4. The minimum cover to the main bars in an RCC beam should be

5. A slender column is a

6. A doubly reinforced beam is used

7. The durability of concrete is proportional to

8. The minimum cover in a slab is neither less than the diameter of the bar nor less than

9. The minimum cover to the ties or spiral should not be less than

10. The approximate ratio of the direct tensile strength to flexural strength is

11. A T-beam behaves like a rectangular beam of width equal to its flange if its neutral axis

12. The maximum bulking of sand generally occurs at a percentage moisture content of

13. Workability of concrete is inversely proportional to

14. In an RCC beam, if the amount of steel increases, the depth of N.A.

15. Minimum embedment of reinforcement in a concrete flexural member should be

16. If the slenderness ratio for a column is 100 then the column is said to be

17. The maximum spacing of side-face reinforcement in a beam should be

18. A balanced design of a beam is a condition where the ..... stresses occurring are equal to the permissible stress.

19. Increased depth of a beam causes

20. Shear stress diagram of a homogeneous beam is

21. An under-reinforced section means

22. The ratio of ultimate strength to working stress is

23. The diameter of bars normally used in a column is

24. Surface vibrator is effective only when the thickness of concrete does not exceed

25. The moment of resistance of an under-reinforced section is computed on the basis of

26. The minimum thickness of the cover at the end of a reinforcing bar should be twice the diameter of the bar, subjected to a minimum of

27. The limits of the percentage of the longitudinal reinforcement in a column are given by

28. For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of the bar nor less than

29. A diagonal crack is introduced in a beam due to

30. A column is considered as a long column if its slenderness ratio is more than

31. If the corners of a two-way slab are held down firmly

32. The thickened part of a flat slab over its supporting column is technically known as

33. Distribution of shear intensity over a rectangular section of a beam follows

34. The maximum ratio of span to depth ratio of a slab simply supported and spanning in one direction is

35. In R.C.C. beams, the tension reinforcement can be cut off at a point when it is no longer needed if

36. For a two-way slab, the main reinforcement is provided along the

37. Weight of steel per cubic meter (m³)

38. Shear reinforcement in an RCC beam is used for

39. Large size aggregate is better in yield high strength but in no case greater than

40. The minimum length of the bar which must be embedded in concrete beyond any section to develop bond is

41. A reinforced concrete beam will crack if tensile stress set up in the concrete below the neutral axis is

42. A simply supported beam shall be deemed to be a deep beam if the ratio of effective span to overall depth is

43. The strength of concrete is directly proportional to

44. Segregation is responsible for

45. Distribution reinforcement in a simply supported slab is provided to distribute

46. The effective width of a column strip of a flat slab is

47. In the working stress design, the allowable bending compressive strain in RCC is

48. If the thickness of the slab is 100 mm then the maximum diameter of the bar placed in the slab should be

49. The slenderness ratio of an RCC column is given by (Where, r=radius of gyration, l=effective length, B=width, D=diameter)

50. A column is considered as a long column if its slenderness ratio is more than