Structural Design Online Test – Paper 3

1. Shear reinforcement in an RCC beam is used for

2. If the effective length of a 32 cm diameter column is 4.40 mts slenderness ratio is

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

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

5. The anchorage value of the standard hook is taken as 16 times the diameter of the reinforcing bar if the angle of the bend is equal to

6. Spacing of stirrups in a rectangular beam is

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

8. Workability of concrete is inversely proportional to

9. According to the steel beam theory of doubly reinforced beams

10. Presence of oils in water for concreting

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

12. In an RCC beam, N.A means

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

14. An air entraining agent when added in concrete improves

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

16. The durability of concrete is proportional to

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

18. The lower water-cement ratio in concrete products

19. The minimum vertical spacing of the main bars in an RCC beam should be

20. Main reinforcement in an RCC beam is used for

21. The load-carrying capacity of helically reinforced column compared to a tied column is

22. Strength of concrete increases with

23. The advantage of reinforced concrete is due to

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

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

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

27. The maximum spacing between longitudinal bars in a column is

28. Factor of safety is given by

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

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

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

32. 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?

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

34. The workability of concrete is directly proportional to

35. The strength and quality of concrete depends on

36. A column fails by buckling is called a long column while failure by crushing is called

37. A continuous beam shall be deemed to be a deep beam if the ratio of effective span to overall depth is

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

39. The beam section is redesigned if the shear stress exceeds the allowable shear stress by ... times

40. The ratio of effective length of a column which is fixed at both ends to the distance between the supports is about

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

42. 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

43. An under-reinforced section means

44. The states of concrete are

45. The slab built integrally with the supporting columns without any beams is

46. The quantity of coarse aggregate required in 100 m³ of concrete having mix 1:2:4

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

48. Unsoundness of cement due to magnesia can be determined by

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

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