Construction Materials Online Test – Paper 3

1. *Stainless steel resists corrosion due to

2. Kaolin (china clay) is a

3. Jhamb bricks

4. *Granites are a type of

5. During burning of dried bricks, the sequence of chemical changes that take place, is as under

6. *Hollow bricks are used for

7. The temperature at which bricks are burnt varies from (low melting clay)

8. Good quality building stones should not contain soluble salts more than

9. *Le-Chatelier's apparatus is used to carry out

10. *Which constituent of the cement, upon the addition of water, sets and hardens first

11. *The over ground continuous kiln is

12. *Which one of the following pairs is correctly matched?

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

14. Sand has minimum volume when:

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

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

17. *The commonly used raw material in the manufacture of cement is

18. A mortar prepared by mixing wood powder or sawdust to the cement or lime mortar is known as

19. *According to IS399-1963, the weight of the timber is specified at

20. Emulsion paints contain:

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

22. The initial setting of cement is caused by the formation of

23. *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

24. Very strong lime mortar is obtained from

25. Which of the following is a rock?

26. *The oily liquid in which base and pigment are dissolved to form a paint is called

27. *Swelling of bricks is known as

28. Bull nose bricks are not used in

29. Material generally not used as an extender in paints is

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

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

32. Quarry sap is found in

33. *The paint highly resistant to fire is

34. Excess of silica in brick earth causes

35. Trap is a

36. *Slate stone is a

37. Rocks having silica as the main constituent are called

38. *Color of granite is

39. *If the molten magma forces itself into an already existing rock in the earth's crust and solidifies there, such a rock is known as

40. In quick-setting cement the compound added is

41. *The function of frog is

42. *Asphalt is a mixture of

43. Identify the chemical classification of rocks

44. Granite is not suitable for ordinary building purposes because

45. 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

46. Under metamorphism, which of the following change is correct?

47. Identify the process responsible for the formation of igneous rocks

48. Normally bogus compounds found in cement during the burning process

49. Which of the following has the lowest crushing strength

50. *The stone that exhibits more fire-resisting characteristics is