Construction Materials Online Test - Paper 3

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Vikash chaudhary

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Total Questions: 50
Time Allotted: 50 minutes
Passing Score: 70%
Randomization: Yes
Certificate: Yes
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1 / 50

1. The soil good for making bricks is

a) clay soil (silica & alumina)

b) alluvial

c) silt

d) sand and silt

2 / 50

2. If rainwater falls on hot bricks, then the shape of the brick gets deformed, this defect is known as

a) efflorescence

b) chuffs

c) bloating

d) nodule

3 / 50

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

a) 1%

b) 3%

c) 4%

d) 5%

4 / 50

4. The types of cement used for patch works of pavement are

a) OPC

b) expansive

c) PPC

d) RHPC

5 / 50

5. *The size of bull's trench kiln is

a) circular

b) parabolic

c) elliptical

d) all of the above

6 / 50

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

a) 400┬░ to 700┬░C

b) 700┬░ to 1000┬░ C

c) 1000┬░ to 1200┬░C

d) 1200┬░ to 1500┬░ C

7 / 50

7. *PVC stands for

a) plastic very compact

b) polythene vinyl carbon

c) pigment volume concentration

d) polythene vinyl chloride

8 / 50

8. The process of taking out stones of various sizes from natural rocks is known as

a) dressing

b) seasoning

c) quarrying

d) none of the above

9 / 50

9. *Strike is used to remove the

a) crowded people

b) stop the work

c) surplus clay of the mould

d) all of the above

10 / 50

10. *The stone that exhibits the highest compressive strength is

a) slate

b) gneiss

c) limestone

d) granite

11 / 50

11. Which one of the following does not belong to exogenous trees?

a) coconut

b) teak

c) shisham

d) sal

12 / 50

12. Excess of silica in brick earth causes

a) loss of cohesion

b) impermeable

c) cracking and warping on drying

d) brittleness

13 / 50

13. *The age of the tree can be judged from

a) the height

b) the diameter

c) annual rings

d) piths

14 / 50

14. *Elastomers can extend up to

a) ten times their original dimensions

b) seven times their original dimensions

c) five times their original dimensions

d) three times their original dimensions

15 / 50

15. *Plaster of Paris can be obtained from the calcination of

a) limestone

b) gypsum

c) dolomite

d) bauxite

16 / 50

16. *Slate stone is a

a) igneous rock

b) sedimentary rock

c) metamorphic rock

d) granular rock

17 / 50

17. *A brick is a block of ........

a) dusty material

b) organic material

c) ceramic material

d) loamy material

18 / 50

18. As compared to fat lime, the hydraulic lime sets

a) faster

b) slower

c) same rate

d) very slowly

19 / 50

19. The maximum percentage of silt content for making good tiles is about

a) 20%

b) 30%

c) 40%

d) 50%

20 / 50

20. The maximum percentage of fine sand content in the soil for making good tiles is about

a) 20%

b) 30%

c) 40%

d) 50%

21 / 50

21. *Types of rock used for lightweight aggregate is

a) shale

b) pumice

c) conglomerate

d) slate

22 / 50

22. The trees yielding softwood is

a) sal & teak

b) chir & deodar

c) sisham & sal

d) none of the above

23 / 50

23. Which one is correct?

a) PPC gains strength slowly as compared to OPC

b) ultimate strength of PPC is higher than OPC

c) PPC has higher resistance of chemical attack

d) all of the above

24 / 50

24. The timber used for decorative woodwork

a) shisham

b) siris wood

c) rosewood

d) all of the above

25 / 50

25. The advantage of adding pozzolana to lime is

a) increased strength to cracking

b) reduced shrinkage

c) increased resistance to chemical attack

d) impart greater strength

26 / 50

26. Bitumen paint renders

a) a protective surface

b) a shining surface

c) a smooth surface

d) a hard surface

27 / 50

27. *Quartzite is a

a) sedimentary rock

b) metamorphic rock

c) organic rock

d) calcareous rock

28 / 50

28. The maximum percentage of clay content for making good tiles is about

a) 20%

b) 30%

c) 40%

d) 50%

29 / 50

29. *Quick lime is

a) calcium oxide

b) calcium hydroxide

c) calcium carbonate

d) none of the above

30 / 50

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

a) 2%

b) 5%

c) 8%

d) 1.10%

31 / 50

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

a) frost resistance

b) dirty matter

c) weather resistance

d) all of the above

32 / 50

32. Which of the following is a mineral?

a) quartzite

b) laterite

c) calcareous rock

d) calcite

33 / 50

33. The unit weight of sal is

a) 600 kg/m^3

b) 700 kg/m^3

c) 800 kg/m^3

d) 900 kg/m^3

34 / 50

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

a) blasting of stone

b) quarrying of stone

c) seasoning of stone

d) dressing of stone

35 / 50

35. *The defects in wood due to hardening is

a) knots

b) rind galls

c) burls

d) none of the above

36 / 50

36. Lime having high calcium oxide content, which can set and become hard only in the presence of CO2 from the atmosphere, is known as

a) hydraulic lime

b) fat lime

c) quick lime

d) lump lime

37 / 50

37. The base material for distemper is

a) clay

b) chalk

c) lime

d) all of the above

38 / 50

38. *Lime concrete is used in

a) foundation of columns

b) roof slabs

c) walls

d) under the floors

39 / 50

39. *Rubberization temperature is

a) 180┬░C

b) 150┬░C

c) 220┬░C

d) 250┬░C

40 / 50

40. The rock having calcium carbonate as the main mineral constituent is known as

a) calcareous rocks

b) argillaceous rocks

c) siliceous rocks

d) sandy rocks

41 / 50

41. *The maximum percentage of .......... is available in cement.

a) silica

b) lime

c) alumina

d) iron oxide

42 / 50

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

a) dehydration

b) oxidation

c) vitrification

d) none of the above

43 / 50

43. The dry process of manufacturing cement has become obsolete because, in comparison to the wet process

a) it is slow and costly

b) the quality of cement produced by it is inferior

c) it is difficult to maintain the correct proportions of constituents

d) all of the above

44 / 50

44. Slag cement contains

a) lime

b) pozzolana

c) sulphate

d) silvicrete

45 / 50

45. The vehicle used in the case of enamel paints is

a) varnish

b) linseed oil

c) water

d) all of the above

46 / 50

46. Fracture of asbestos is

a) regular

b) irregular

c) fibrous

d) concoidal

47 / 50

47. *Seasoning of timber is done to

a) reduce the weight of timber

b) reduce the chances of shrinkage

c) increase the strength and durability

d) all of the above

48 / 50

48. The solvent used in cement paints is

a) turpentine

b) water

c) spirit

d) kerosene

49 / 50

49. The defect caused by the shrinkage of timber is

a) crook

b) cup and bow

c) twist

d) all of the above

50 / 50

50. Slate is a metamorphic rock obtained from the structural change of

a) shale

b) granite

c) sandstone

d) marble

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Construction Materials Online Test – Paper 3

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