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. The most economical methods of sawing wood is

a) radial sawing

b) tangential sawing

c) quarter sawing

d) flat sawing

2 / 50

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

a) OPC

b) expansive

c) PPC

d) RHPC

3 / 50

3. Suitable stone for a gravity retaining wall is

a) light

b) heavy

c) hard

d) soft

4 / 50

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

a) lime

b) silica

c) manganese

d) iron oxide

5 / 50

5. In the briquette test, the seven-day tensile strength of good Portland cement should not be less than

a) 20 kg/cm^2

b) 30 kg/cm^2

c) 25 kg/cm^2

d) 35 kg/cm^2

6 / 50

6. Smith test is performed on stones for determining

a) specific gravity

b) hardness

c) water absorption

d) soluble and clayey water

7 / 50

7. *The over ground continuous kiln is

a) bull's trench kiln

b) hoffman's kiln

c) tunnel kiln

d) all of the above

8 / 50

8. Which of the following has the highest crushing strength

a) limestone

b) granite

c) gneiss

d) laterite

9 / 50

9. A thin pourable suspension of slaked lime in water is known as

a) lime water

b) lime paint

c) milk of lime

d) lime lotion

10 / 50

10. Lime is mixed with brick earth

a) to impart plasticity

b) to increase durability

c) to prevent shrinkage

d) to increase impermeability

11 / 50

11. Sand has minimum volume when:

a) absolutely dry stage

b) absolutely wet stage

c) both of above

d) none of the above

12 / 50

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

a) 25%

b) 50%

c) 75%

d) 100%

13 / 50

13. *Distemper is used on

a) roof top

b) plastered surface exposed to weather

c) plastered surface not exposed to weather

d) unplastered surface exposed as well as not exposed to weather

14 / 50

14. The rock having a tendency to split in a definite direction is called

a) stratified

b) unstratified

c) foliated

d) all of the above

15 / 50

15. *Fire bricks should be laid in a

a) lime mortar

b) fire cement mortar

c) fire clay mortar

d) all of the above

16 / 50

16. Creosote oil is used to preserve the wood from

a) rot and white ant

b) fire hazards

c) cracking

d) none of the above

17 / 50

17. Plywood is obtained by gluing wooden sheets at a specification of

a) 100 to 150 N/cm^2

b) 60┬░ to 130┬░ C

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

d) none of the above

18 / 50

18. Which one is correct?

a) normally concreting is done above 20┬░C

b) the optimum temperature for concreting is 27┬░┬▒2┬░

c) consistency test is done at a temperature of 25┬░C to 29┬░C

d) all of the above

19 / 50

19. *Strike is used to remove the

a) crowded people

b) stop the work

c) surplus clay of the mould

d) all of the above

20 / 50

20. The explosive not used for blasting the rocks underwater is

a) gun powder

b) gun cotton

c) dynamite

d) cordite

21 / 50

21. Identify the process responsible for the formation of metamorphic 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

22 / 50

22. *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

23 / 50

23. *Conglomerate is a

a) sedimentary rock

b) granite rock

c) metamorphic rock

d) all of the above

24 / 50

24. *Lacquer is

a) distemper

b) oil paint

c) spirit varnish

d) none of the above

25 / 50

25. *Quick lime is

a) calcium oxide

b) calcium hydroxide

c) calcium carbonate

d) none of the above

26 / 50

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

a) granite

b) marble

c) limestone

d) compact sandstone

27 / 50

27. Rocks having silica as the main constituent are called

a) calcareous rocks

b) argillaceous rocks

c) siliceous rocks

d) none of the above

28 / 50

28. The initial and final setting times of ordinary Portland cement are

a) 30 minutes and 10 hr

b) 15 minutes and 10 hr

c) 15 minutes and 5 hr

d) none of the above

29 / 50

29. *PVC stands for

a) plastic very compact

b) polythene vinyl carbon

c) pigment volume concentration

d) polythene vinyl chloride

30 / 50

30. Granite is not suitable for ordinary building purposes because

a) it can not be polished

b) it is not a fireproof material

c) it is costly

d) it has less crushing strength

31 / 50

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

a) circular

b) parabolic

c) elliptical

d) all of the above

32 / 50

32. Which one of the following does not belong to endogenous trees?

a) palm

b) bamboo

c) teak

d) cane

33 / 50

33. Attrition test on stone is done to find out

a) rate of wear

b) toughness

c) compressive strength

d) hardness

34 / 50

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

a) slate

b) gneiss

c) limestone

d) granite

35 / 50

35. The soil good for making bricks is

a) clay soil (silica & alumina)

b) alluvial

c) silt

d) sand and silt

36 / 50

36. *The lime suitable for making mortar is

a) quick lime

b) fat lime

c) hydraulic lime

d) pure lime

37 / 50

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

a) durability

b) smoothness

c) color

d) gray face

38 / 50

38. *The pigment in paints gives

a) smoothness

b) durability

c) glossy face

d) color

39 / 50

39. The ordinary cement used in general construction is:

a) rapid hardening cement

b) Portland cement

c) high alumina cement

d) pozzolanic cement

40 / 50

40. The paint used for automobiles is

a) distemper

b) emulsion paint

c) oil paint

d) any of the above

41 / 50

41. Veneering means

a) carving out designs on timber planks

b) chemically treating timber planks

c) thick layer of superior wood glued to inferior wood

d) thin layer of superior wood glued to inferior wood.

42 / 50

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

a) slate

b) sandstone

c) limestone

d) basalt

43 / 50

43. *Anti-corrosive paint is ...........in color:

a) black

b) blue

c) white

d) yellow

44 / 50

44. *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

45 / 50

45. The minimum hardness number for marble is about

a) 3

b) 8

c) 5

d) 10

46 / 50

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

a) dehydration

b) oxidation

c) vitrification

d) none of the above

47 / 50

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

a) jumper and crowbar

b) crowbar and trowel

c) trowel and wedge

d) wedge and scutch

48 / 50

48. *The cement becomes useless if its absorbed moisture content exceeds?

a) 5%

b) 4%

c) 3%

d) 2%

49 / 50

49. The crushing strength of 1st class brick should not be less than

a) 25 kg/cm^2

b) 70 kg/cm^2

c) 105 kg/cm^2

d) 140 kg/cm^2

50 / 50

50. *The varnish is essentially made of

a) resin

b) solvent

c) drier

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

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Construction Materials Online Test – Paper 3

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