Structural Design Online Test – Paper 3

1. The strength of concrete increases with an increase in

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

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

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

5. 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

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

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

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

9. 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

10. The maximum reinforcement in a column to consider the practical problem is

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

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

13. The durability of concrete is proportional to

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

15. The neutral axis of a T-beam exists

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

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

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

19. By over-reinforcing a beam, the moment of resistance can be increased not more than

20. The designed main bars are placed in a two-way slab

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

22. Laps in bars are equal to

23. When the material is loaded with tensile force at both ends, then the test is known as

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

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

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

27. The unit weight of RCC is taken as

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

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

30. Spacing of longitudinal bars measured along the periphery of the column should not be more than (as per IS: 456-2000)

31. Modulus of rupture is a measure of

32. Modulus of elasticity for concrete improves by

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

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

35. In the case of the foundation of rigid base, the distribution pressure on the soil is

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

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

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

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

40. Workability of concrete is inversely proportional to

41. For bars in tension, a standard hook has an anchorage value equivalent to a straight length of

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

43. The lap length of a direct tension reinforcement bar in an RCC beam should be more than

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

45. If a beam is loaded transversely the maximum compressive stress develops on

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

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

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

49. The initial and final setting times for ordinary Portland cement are approximately related by (where T & t are the final and initial setting times)

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