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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1 / 50

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

a) tri-calcium silicate

b) tri-calcium aluminate

c) di-calcium silicate

d) free lime

2 / 50

2. Dormant period (2-5hr) is concerned with

a) hydration of cement

b) fineness of cement

c) soundness of cement

d) workability of cement

3 / 50

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

a) solidification of molten mass of silicates below or at the surface of earth

b) changes in texture or mineral composition or both of igneous and sedimentary rocks due to high temperature and heavy pressure

c) deposited layers of sand and silt subjected to enormous overburden pressures over geological times

d) none of the above

4 / 50

4. *Slate stone is a

a) igneous rock

b) sedimentary rock

c) metamorphic rock

d) granular rock

5 / 50

5. Second-class bricks

a) are of dark brown color

b) produce a metallic sound when struck

c) are well burnt

d) are under burnt

6 / 50

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

a) circular

b) parabolic

c) elliptical

d) all of the above

7 / 50

7. The commonly used thinner in distempers

a) olive oil

b) naptha

c) turpentine

d) water

8 / 50

8. *Porcelain is used as

a) storage vessels

b) hard wares

c) sanitary wares

d) soft wares

9 / 50

9. The main constituents of Portland cement are:

a) lime, silica, and alumina

b) lime, alumina, and potash

c) alumina, silica, and iron oxide

d) lime, alumina, and iron oxide

10 / 50

10. The possibility of bleeding, segregation, and laitance is reduced by

a) coloring agent

b) bleeding agent

c) waterproofer

d) air-entraining agent

11 / 50

11. Choose the correct

a) percentage of silica is increased in 1st class brick

b) percentage of alumina is increased in 1st class brick

c) percentage of alumina is increased in refractory brick

d) all of the above

12 / 50

12. The argillaceous rocks have their principal constituents as

a) lime

b) clay

c) sand

d) none of the above

13 / 50

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

a) olive oil

b) linseed oil

c) kerosene

d) acetate of lead

14 / 50

14. Muller is concerned with

a) ground the base of paint

b) cohesion & adhesion

c) preparation of paint

d) all of the above

15 / 50

15. The type of cement is considered good if

a) it contains C3S in large amounts

b) it contains C2S in large amounts

c) it contains C3A in large amounts

d) all of the above

16 / 50

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

a) the height

b) the diameter

c) annual rings

d) piths

17 / 50

17. The cracks in the painted surface extending throughout the thickness of the paint are caused due to

a) improper seasoning of the painted wood

b) excessive use of drier

c) too many coats of paint resulting in excessive thickness

d) all of the above

18 / 50

18. *Suitable aggregate is obtained from... rock.

a) igneous

b) sedimentary

c) metamorphic

d) none of the above

19 / 50

19. *Extenders used in paints are for

a) smooth surface

b) easy spreading

c) coloring

d) glossy face

20 / 50

20. Rapid hardening cement attains early strength due to

a) a larger proportion of lime grounded finer than in ordinary cement

b) a small proportion of lime grounded finer than in ordinary cement

c) the presence of an excess percentage of gypsum

d) none of the above

21 / 50

21. Tiles are used for

a) covering the roofs and flooring

b) making drains

c) both (a) and (b) of above

d) none of the above

22 / 50

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

a) scaling

b) blistering

c) sagging

d) wrinkling

23 / 50

23. *Lime concrete is used in

a) foundation of columns

b) roof slabs

c) walls

d) under the floors

24 / 50

24. *What type of paint do you recommend in doors on the exterior wall of a building?

a) oil distemper

b) French polish

c) varnish (Interior)

d) enamel paint

25 / 50

25. 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

26 / 50

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

a) sandstone......igneous rock

b) lime stone.....sedimentary rock

c) basalt...........metamorphic rock

d) granite...........argillaceous rock

27 / 50

27. *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

a) viscosity

b) softening point

c) penetration

d) flash point

28 / 50

28. 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

29 / 50

29. Based on its dry weight, a freshly felled tree may contain water

a) 25%

b) 50%

c) 75%

d) 100%

30 / 50

30. 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

31 / 50

31. Slag cement contains

a) lime

b) pozzolana

c) sulphate

d) silvicrete

32 / 50

32. *Hardness coefficient is maximum for

a) conglomerate

b) granite

c) slate

d) limestone

33 / 50

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

a) consistency test

b) soundness test

c) compressive strength

d) tensile strength

34 / 50

34. For the manufacture of bricks, normally the topsoil is removed having a depth of .....

a) 10cm

b) 20cm

c) 30cm

d) 40cm

35 / 50

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

a) feet

b) pug mill

c) feet of cattle

d) all of the above

36 / 50

36. *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%

37 / 50

37. *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

38 / 50

38. *In stone masonry, the stones are placed in a position such that the natural bedding plane is

a) normal to the direction of pressure they carry

b) parallel to the direction of pressure they carry

c) at 45┬░ to the direction of pressure they carry

d) at 60┬░ to the direction of pressure they carry

39 / 50

39. *The sports goods are made from

a) sal

b) deodar

c) chir

d) mulberry

40 / 50

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

a) limestone

b) gypsum

c) dolomite

d) bauxite

41 / 50

41. *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%

42 / 50

42. *Bronze is an alloy of

a) copper and zinc

b) copper and tin

c) copper and nickel

d) copper and chromium

43 / 50

43. The nominal size of modular brick is

a) greater than actual brick

b) none of the above

c) less than actual brick

d) equal to actual brick

44 / 50

44. During compressive strength load is applied at the rate of

a) 10 N/mm^2/Min

b) 12 N/mm^2/Min

c) 14 N/mm^2/Min

d) 16 N/mm^2/Min

45 / 50

45. Quick setting cement is used

a) for the construction of structures under water

b) to obtain very light strength

c) where resistance to acidic water is required

d) none of the above

46 / 50

46. *Color of granite is

a) brown

b) green

c) grey or pink

d) all of the above

47 / 50

47. 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

48 / 50

48. Refractory bricks are specially manufactured

a) to withstand high crushing pressure

b) to withstand high temperature

c) to have high insulation against sound

d) none of the above

49 / 50

49. The solution of salts from the soil absorbed by the trees, which becomes a viscous solution due to the loss of moisture and action of carbon dioxide is known as

a) pith

b) cambium

c) bark

d) sap

50 / 50

50. Distemper is generally used in:

a) walls

b) wood

c) steel

d) none of the above

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Construction Materials Online Test – Paper 3

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