Structural Design Online Test – Paper 3

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

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

3. 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

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

5. The strength of concrete is directly proportional to

6. The factor of safety for steel is based on its

7. 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)

8. In a doubly reinforced beam, the maximum shear stress occurs

9. The amount of reinforcement for main bars in a slab is based on

10. In a two-way slab, the lifting of corners occurs due to

11. The workability of concrete is directly proportional to

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

13. Steel beam theory is used for

14. 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

15. Modulus of elasticity for concrete improves by

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

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

18. An under-reinforced section means

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

20. Minimum spacing between horizontal parallel reinforcements of the same size should not be less than

21. In a rectangular R.C.C beam, the ratio of the maximum shear stress to average shear stress is

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

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

24. 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?

25. In a simply supported slab, alternate bars are curtailed at

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

27. In a T beam overall depth of rib (in case of heavy load) is

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

29. The transverse shear reinforcement in RCC beams can be provided as

30. The center-to-center spacing of vertical stirrups in a rectangular beam is

31. For an RCC section, select the most true statement from the following

32. A flat slab is supported

33. The advantage of reinforced concrete is due to

34. The workability of concrete can be improved by

35. Factor of safety is given by

36. Singly reinforced beam & doubly reinforced beam are decided based on

37. The reinforcement is bent at an inclination of angle at the ends of the beam

38. Laps in bars are equal to

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

40. The unit weight of RCC is taken as

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

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

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

44. An air entraining agent when added in concrete improves

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

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

47. The strength and quality of concrete depends on

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

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

50. The neutral axis of a T-beam exists