Structural Design Online Test – Paper 3

1. The ultimate bending compressive strain in RCC is

2. A doubly reinforced beam is economical as compared to a singly reinforced beam because

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

4. In a slab, the pitch of the main reinforcement should not exceed its effective depth

5. In a column, the pitch of the ties shall be

6. Bottom reinforcement in a beam is subjected to

7. Weight of steel per cubic meter (m³)

8. The cover provided in the column having size less than 200 mm x 200 mm is

9. The minimum number of main bars in a circular column is

10. The amount of reinforcement for main bars in a slab is based upon

11. Factor of safety is given by

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

13. The spacing of transverse reinforcement of a column is decided by the following consideration

14. In a two-way slab, the torsion steel is provided at the

15. Which type of vibrator is generally used in concrete work

16. The enlarged head of a supporting column of a flat slab is technically known as

17. High increase in temperature......the strength of concrete.

18. Which of the following factors influence the strength of concrete?

19. In a beam, the spacing of shear reinforcement is kept... at the center as compared to the end

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

21. Spacing of stirrups in a rectangular beam is

22. The safe bond stress between concrete and steel is determined by

23. What is the minimum period for which the lime concrete in the foundation be left wet without the construction of masonry over it?

24. The approximate ratio of the direct tensile strength to direct compressive strength test

25. For a cantilever beam, the span to effective depth ratio is generally restricted to

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

27. The durability of concrete is proportional to

28. In the analysis of a doubly reinforced beam, the assumption made is

29. The maximum bulking factor for sand is

30. In a column, the minimum cover provided at the end of reinforcement is

31. Placing of concrete should preferably be done at a temperature of

32. Generally, the compressive strength of the cover block is more than the compressive strength of the concrete. The main function of the cover block is

33. As per IS: 456:2000, the minimum diameter of reinforcement in a column shall not be less than

34. A circular slab, when subjected to external loading, deforms to assume a shape of

35. Main reinforcement in an RCC beam is used for

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

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

38. The types of failure occurring in a beam due to shear force is termed as

39. For a cantilever of effective depth of 50cm, the maximum span to satisfy vertical deflection limit is

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

41. Weep holes are provided in retaining and breast walls to

42. In a singly reinforced beam (concrete), as the load increases

43. The minimum diameter of bars for a slab is generally

44. An air entraining agent when added in concrete improves

45. Shear stress is not taken by

46. In cold weather, concrete curing should be continued for... days

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

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

49. The types of failure in which stress in concrete and steel reaches its permissible value at a time is called balance failure. At this stage, the location of the neutral axis is

50. The resistance offered to slipping of steel bars in concrete is due to