Construction Materials Online Test – Paper 3

1. *Hardness coefficient is maximum for

2. Rocks having silica as the main constituent are called

3. *The commonly used drying oil for oil paints is

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

5. Identify the process responsible for the formation of sedimentary rocks

6. *Quick lime is

7. *The percentage of carbon in cast iron is:

8. The amount of pozzolana in Portland pozzolana cement is

9. The constituent responsible for setting of hydraulic lime underwater is

10. *Tampering of soil for the manufacture of bricks is done by

11. Which of the following has the highest crushing strength

12. The maximum percentage of warping along the sides of tiles is

13. Emulsion paints contain:

14. *Distemper is used on

15. *Flash setting of cement means

16. In the chemical composition of the test for loss on ignition, the cement is treated to a temperature of

17. *Fire bricks should be laid in a

18. The type of cement is considered good if

19. The following element of a paint is used as base, pigment as well as drier

20. The main constituents of Portland cement are:

21. To which category do the bauxite bricks belong?

22. Lime is mixed with brick earth

23. The trees yielding softwood is

24. *Normally the bricks (1st class) obtained from pazawah is about

25. The rocks which are formed due to the cooling of magma at a considerable depth from the earth's surface are called

26. Excess of alumina in a brick earth causes

27. *The most durable varnish is:

28. *To give a brilliant finish, the type of varnish used is:

29. In bricks masonry, the frog of the brick is generally kept on

30. Which one is correct?

31. The preparation of the surface of stones to obtain plain edges or to obtain stone of the required shape and size is known as

32. *Spalling hammer is used for

33. *Workability is tested by

34. Timber can be made reasonably fire-resistant

35. Creosote oil is used to preserve the wood from

36. The percentage of silica in good brick earth lies between

37. Fracture of asbestos is

38. Portland cement manufactured from pure white chalk and clay but free from iron oxide is known as

39. *For carving ornamental and architectural beauty, the stone should be

40. Basalt (TBE-GPI) is a

41. A stone is rejected if the water absorption is more than

42. *The defect in painting over a smooth and glossy surface due to which paint does not stick to the surface, is known as

43. *The main constituent of varnish is

44. *The red color obtained by the bricks is due to the presence of

45. The defect caused by the shrinkage of timber is

46. *Sandstone is a

47. The group of tools used for quarrying of stone is

48. *A heavy stone is suitable for:

49. *A good quality stone must absorb water less than

50. Suitable stone for a gravity retaining wall is