Building Construction Technology Online Test – Paper 3

1. Which of the following statements is true:

2. In three-coat plastering, the third coat is known as:

3. Too wet concrete may cause:

4. If the water-cement ratio of concrete is 0.6, then water required for mixing concrete is:

5. The soundness test of cement by Le Chatelier's apparatus gives unsoundness due to:

6. In stairs, stringers are:

7. The wooden piece joining the bottom ends of rafter is called:

8. Cement used for resisting acid is:

9. Which of the following is not an activity associated with damp proofing?

10. 'Curing' as used in concrete and cement plaster is a process that helps these gain:

11. The bearing capacity of a waterlogged soil may be improved by:

12. A flaky aggregate is said to be elongated if its greatest dimension (length) is greater than:

13. Workability increasing admixture is used in concrete to?

14. The workability of concrete can be improved by the addition of the following compounds:

15. Minimum water-cement ratio required for full hydration of cement:

16. Geologic cycle for the formation of the soil is:

17. Different types of bonds used in brick masonry work due to:

18. The type of aggregate of the same nominal size, which contains fewer voids when compacted, is:

19. Curing of pavements, floors, roofs, and slabs are done by:

20. The arrangement of supporting an existing structure by providing supports underneath is known as:

21. The maximum thickness of door shutters provided in doors is:

22. Percentage of pozzolanic material containing clay up to 80% used for the manufacture of pozzolana cement is:

23. Water-cement ratio is:

24. Negative skin friction on piles:

25. The thickness of rebate is normally kept:

26. The final operation of finishing floors is known as:

27. If the effective working time is 7 hours and the per batch time of concrete is 3 minutes, the output of a concrete mixer of 150-liter capacity is:

28. Maximum permissible unit of magnesia concentration in ordinary Portland cement is:

29. A brick masonry may fail due to:

30. Curing of concrete:

31. The flooring suitable to resist heavy wear and provide an attractive appearance is:

32. The bulk density of aggregates depends upon:

33. The arrangement of steps provided from the ground level to plinth level is:

34. A retaining wall may be built of:

35. The brick laid with its length parallel to the face of a wall is known as:

36. The roof used in factories is called:

37. The bond used when bricks are of different thickness is:

38. The height of the slump cone is kept:

39. In brick laying, the tool used for lifting and spreading mortar and for forming joints is:

40. The risk of segregation is more for:

41. A wooden block hinged on the post outside a door is known as:

42. The exterior angle between outer faces of a wall is known as:

43. If the compaction factor is 0.95, the workability of concrete is:

44. The operation of finishing the mortar joints after the completion of a masonry wall is known as:

45. The process of hand compaction of concrete is:

46. The cement-sand mortar preferred in 1/2 brick walls is:

47. The approximate ratio of strength of cement concrete at 1 year to that at 28 days of curing is:

48. If the average compressive strength is 4000kg/cm2 and standard deviation is 500, the coefficient of variation is:

49. The bricks having one or two edges rounded for use in curved corners are called:

50. The normal thickness of an expansion joint in masonry walls must be more than: