Structural Design Online Test – Paper 3

1. In a beam section, if the steel reinforcement is of such a magnitude that the permissible stresses in concrete and steel are developed simultaneously, the section is known as

2. Side face reinforcement is provided in a beam when the depth of the web in a beam exceeds

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

4. Strength of concrete increases with

5. Concrete gains strength due to

6. For a continuous slab of 3m x 3.5m size, the minimum overall depth of the slab to satisfy vertical deflection limit is

7. In an over-reinforced concrete section, the failure starts at

8. Modulus of rupture is a measure of

9. Main reinforcement in an RCC beam is used for

10. The maximum ratio of span to depth ratio of a slab simply supported and spanning in two directions is

11. The advantage of reinforced concrete is due to

12. Laps in bars are equal to

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

14. In a singly reinforced beam, the effective depth is measured from its compression edge to

15. The maximum strain in the tension reinforcement in the section of a flexural member at failure shall not be less than (if fy is the characteristic strength of steel and Es is the modulus of elasticity of steel)

16. An RCC element, 1 m deep and 0.5 m wide will require minimum reinforcement @ 1% of the gross sectional area, what will be the area of reinforcing bars?

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

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

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

20. In R.C.C. works, the proportion of the mixture 1:1.5:3, the volume of the cement is in

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

22. Separation of ingredients from concrete during transportation is known as

23. Two layers of tensile reinforcement bars are placed in a flexural member in such a way that the effective depth would be

24. The maximum diameter of bars in a beam is limited to

25. Strength of concrete increases with

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

27. Increased depth of a beam causes

28. The ratio of modulus of elasticity of steel to that of concrete is

29. The property of fresh concrete, in which while placing and compaction is known as

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

31. As the size of the cube increases, the strength of the cube

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

33. Addition of sugar in concrete results in

34. In a singly reinforced beam, the effective cover is measured from

35. An air entraining agent when added in concrete improves

36. Factor of safety is given by

37. The minimum straight lap length in tension bars with hooks in an RCC beam is

38. Workability of concrete is inversely proportional to

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

40. Spacing of stirrups in a rectangular beam is

41. The states of concrete are

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

43. The ultimate tensile strength of structural mild steel is about

44. Shear stress is not taken by

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

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

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

48. The length of the straight portion of a bar beyond the end of the hook should be at least

49. A slender column is a

50. An RCC roof slab is designed as a two-way slab if