RCC MCQs Practice Set-3

1. According to IS: 456-1978, the maximum reinforcement in a column is

2. The ratio of the diameter of reinforcing bars and the slab thickness is

3. According to IS: 456-1978, the column or the strut is the member whose effective length is greater than

4. Maximum distance between expansion joints in structures as per IS; 456-1978 is

5. Minimum pitch of transverse reinforcement in a column is

6. According to IS: 456-1978, the flexural strength of concrete is

7. According to IS: 456-1978, the minimum slenderness ratio for a short column is

8. Lap length in compression shall not be less than

9. The minimum diameter of longitudinal bars in a column is

10. The main reason for providing number of reinforcing bars at a support in a simply supported beam is to resist__________ in that zone

11. The minimum cover to the ties or spirals should not be less than

12. For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus correction factor to the moments obtained by Grashoff Rankine's theory

13. The average permissible stress in bond for plain bars in tension is

14. Minimum thickness of load bearing RCC wall should be

15. The percentage of reinforcement in case of slabs, when high strength deformed bars are used is not less than

16. The diameter of ties in a column should be

17. Maximum percentage reinforcement in case of slabs is limited to

18. The load carrying capacity of a helically reinforced column as compared to that of a tied column is about

19. During erection, the pile of length L is supported by a crane at a distance of

20. The limits of percentage p of the longitudinal reinforcement in a column is given by

21. For a reinforced concrete section, the shape of shear stress diagram is

22. Diagonal tension in a beam

23. Due to circumferential action of the spiral in a spirally reinforced column

24. The maximum compressive stress in concrete for design purposes is based on a partial safety factor of

25. According to IS: 456-1978, the maximum compressive stress in concrete for design purpose is taken as

26. The partial safety factor for steel as per IS: 456-1978 is taken as

27. According to IS: 456-1978, the maximum strain in concrete at the outermost compression fibre in the limit state design of flexural member is

28. For the deflection of simply supported beam to be within permissible limits, the ratio of its span to effective depth as per IS: 456-1978 should not exceed

29. The creep strains are

30. The effect of creep on modular ratio is

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

32. Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to

33. In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

34. A beam curved in plan is designed for

35. In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always

36. Sinking of an intermediate support of a continuous beam

a) reduces the negative moment at support

b) increases the negative moment at support

c) reduces the positive moment at centre of span

d) increases the positive moment at centre of span

The correct answer is

37. In prestressed concrete

38. In a spherical dome the hoop stress due to a concentrated load at crown is

39. The purpose of reinforcement in prestressed concrete is

40. Normally prestressing wires are arranged in the