Construction Materials Online Test – Paper 3

1. *Seasoning of timber is done for

2. *Lime is obtained from

3. *Bitumen is generally obtained from

4. *The most durable varnish is:

5. *The main purpose of seasoning is

6. Fat lime may be converted into artificial hydraulic lime

7. Which one of the following does not belong to endogenous trees?

8. When a bitumen is graded by 75/15, the figure 75 represents

9. The main constituents of Portland cement are:

10. In the manufacture of plywood, the veneers are placed such that the grains of one layer are

11. Pumice is a type of

12. The artificial seasoning of timber may

13. *In the sieve analysis of the fineness test, the residue on IS sieve No. 90╬╝ after 15 minutes of sieving should not be more than

14. *Fire bricks should be laid in a

15. *The solidification of molten magma when it reaches the surface of earth results in the formation of

16. The standard size of a brick as per Nepal Standard (NBC205:2013) is

17. *The weight loss on heating of bitumen used for pavement should not be more than

18. Marble is found in

19. *Workability is tested by

20. The silicious and aluminous minerals themselves, which do not have cementitious qualities but which react with lime in the presence of water at normal temperature to form cementitious compounds, are known as

21. Mica, mainly, is composed of

22. The amount of pozzolana in Portland pozzolana cement is

23. *The setting and hardening of cement after the addition of water occur due to

24. *Softening point test (x/y) for bitumen is done at a temperature of upper numeral indicates the softening temperature (x┬░C) while the lower numeral indicates

25. *Anti-corrosive paint is ...........in color:

26. A dry powder obtained on treating quick lime with just enough water to satisfy its chemical affinity for water under the condition of its hydration is called

27. *Shingle is

28. The ingredient of the brick earth which enables the brick to retain its shape is

29. *All burnt bricks are soaked in water for at least.......before use with cement mortars.

30. Lacquer paints are

31. The standard size of the brick as per the Indian standard is

32. *The most commonly used accelerator for concreting is

33. Basalt can be classified as

34. Common sand is a variety of

35. PVC controls in paint

36. Limestone comes under the category of

37. Brard's test is done for finding the... of stone

38. *In paints, the pigment is responsible for:

39. The fineness of cement is tested by:

40. The nominal size of modular brick is

41. To which category do the bauxite bricks belong?

42. *The painting work is generally specified by

43. The seven-day compressive strength of good Portland cement, as obtained from the compressive test on cement-sand mortar cubes, should not be less than

44. The bricks are properly soaked in water before use for the following reason

45. *The paint highly resistant to fire is

46. Which one is correct?

47. For burning clay products such as sewer pipes, the necessary chemical change is

48. *The minerals found in rocks are

49. *Frog means

50. Plywood is obtained by gluing wooden sheets at a specification of