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%
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Certificate: Yes
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1 / 50

1. *Bronze is an alloy of

a) copper and zinc

b) copper and tin

c) copper and nickel

d) copper and chromium

2 / 50

2. *Quick lime is obtained from the burning of

a) kankar

b) limestone

c) slaked lime

d) white lime

3 / 50

3. Jhamb bricks

a) over burnt

b) under burnt

c) kuccha

d) none of the above

4 / 50

4. Excess of iron oxide in brick earth causes

a) loss of cohesion

b) decay of bricks

c) the color change i.e. from red to dark blue

d) none of the above

5 / 50

5. *The pigment commonly used in the manufacture of cement is

a) ambers

b) iron oxide

c) lamp black

d) all of the above

6 / 50

6. The building stone can be dressed very easily

a) just after quarrying

b) after seasoning

c) after some months of quarrying

d) any time

7 / 50

7. *Which constituent is the best cementing material in cement?

a) tri-calcium silicate

b) tri-calcium aluminate

c) di-calcium silicate

d) free lime

8 / 50

8. Lamination of bricks is caused due to

a) entrapped air in the voids of the clay

b) excess lime

c) entrapped water in the voids of the clay

d) excess sand

9 / 50

9. Smith test is performed on stones for determining

a) specific gravity

b) hardness

c) water absorption

d) soluble and clayey water

10 / 50

10. Limestone is a

a) igneous rock

b) sedimentary rock

c) metamorphic rock

d) granite rock

11 / 50

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

a) durability

b) smoothness

c) color

d) gray face

12 / 50

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

a) sedimentary rocks

b) metamorphic rocks

c) basalts and traps

d) granite and pegmatite

13 / 50

13. Find the one which is not used in quarrying

a) gun powder

b) gun cotton

c) marble powder

d) dynamite

14 / 50

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

a) limestone

b) gypsum

c) dolomite

d) bauxite

15 / 50

15. Which of the following has the lowest crushing strength

a) basalt

b) granite

c) diorite

d) laterite

16 / 50

16. *Pug mill is used for

a) clay preparation

b) clay moulding

c) brick drying

d) brick burning

17 / 50

17. *Lime is obtained from

a) lime stone

b) sand stone

c) trap

d) silica

18 / 50

18. *The cracks that extend from bark towards the sapwood in the cross-section of a tree are called

a) radial shakes

b) star shakes

c) heart shakes

d) cup shakes

19 / 50

19. A piece of sawn timber whose cross-sectional dimensions exceed 5 cm in one direction and 20 cm in the other direction is called a

a) cant

b) deal

c) bauk

d) strip

20 / 50

20. The pozzolana Portland cement gains strength

a) in the same time as ordinary Portland cement

b) in less time than ordinary Portland cement

c) in more time than ordinary Portland cement

d) difficult to tell

21 / 50

21. 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

22 / 50

22. *The lime suitable for use underwater is

a) fat lime

b) poor lime

c) hydraulic lime

d) all of the above

23 / 50

23. *Bitumen is used for

a) waterproofing

b) damp proofing

c) joint filler

d) all of the above

24 / 50

24. *Lime concrete is used in

a) foundation of columns

b) roof slabs

c) walls

d) under the floors

25 / 50

25. *The sports goods are made from

a) sal

b) deodar

c) chir

d) mulberry

26 / 50

26. The discoloration and formation of white deposits due to the presence of a relatively large proportion of soluble salts in bricks is known as

a) bloating

b) chuffs

c) efflorescence

d) nodules

27 / 50

27. Fire bricks are used

a) to reflect heat

b) to increase heat flow

c) to decrease heat flow

d) all of the above

28 / 50

28. Bloating of bricks is due to

a) presence of excess carbonaceous matter and sulphur

b) presence of any gas forming material in clay

c) bad burning or rapid firing

d) all of the above

29 / 50

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

a) circular

b) parabolic

c) elliptical

d) all of the above

30 / 50

30. *The process of adding water to lime to convert it into hydrated lime is known as

a) hydration

b) slaking

c) calcination

d) watering

31 / 50

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

a) granite

b) marble

c) limestone

d) compact sandstone

32 / 50

32. The most economical methods of sawing wood is

a) radial sawing

b) tangential sawing

c) quarter sawing

d) flat sawing

33 / 50

33. *Quick lime is

a) calcium oxide

b) calcium hydroxide

c) calcium carbonate

d) none of the above

34 / 50

34. *Sandstone is a

a) sedimentary rock

b) igneous rock

c) argillaceous

d) both (a) and (b) above

35 / 50

35. *A piece of timber whose thickness and width are respectively 5 cm and 10 cm is called

a) cant

b) deal

c) bauk

d) strip

36 / 50

36. *The paints used in aircraft are

a) dry paints

b) cellulose paints

c) water paints

d) emulsion paints

37 / 50

37. *PVC stands for

a) plastic very compact

b) polythene vinyl carbon

c) pigment volume concentration

d) polythene vinyl chloride

38 / 50

38. *In a well-seasoned timber, the moisture content will be in the range of

a) 20-25%

b) 15-20%

c) 10-12%

d) 5-7%

39 / 50

39. *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

a) 5%

b) 7.50%

c) 10%

d) 15%

40 / 50

40. The artificial seasoning of timber may

a) reduce moisture

b) make light and strong

c) make fire resistance

d) remove moisture

41 / 50

41. *The function of frog is

a) to form a key during laying

b) reduction in weight

c) advertisement of the manufacturer

d) all of the above

42 / 50

42. 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

43 / 50

43. *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

44 / 50

44. In arches, stratified stones are placed so that their planes are

a) parallel

b) radial

c) perpendicular

d) all of the above

45 / 50

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

a) low heat Portland cement

b) quick setting cement

c) white cement

d) none of the above

46 / 50

46. *Quartzite is a

a) sedimentary rock

b) metamorphic rock

c) organic rock

d) calcareous rock

47 / 50

47. Freshness of cement is decided on the basis of

a) It should be free from lumps of set cement.

b) When cement is rubbed between fingers and thumb, it should feel like a smooth powder.

c) It feels cool after inserting a hand in the bag of cement.

d) all of the above

48 / 50

48. *Seasoning of timber is done for

a) increasing moisture content

b) decreasing moisture content

c) increasing the strength of timber

d) none of the above

49 / 50

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

a) consistency test

b) soundness test

c) compressive strength

d) tensile strength

50 / 50

50. A pug mill is used for

a) softening brick earth

b) moulding brick earth

c) tempering brick earth

d) all of the above

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Construction Materials Online Test – Paper 3

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