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. *The pigment in paints gives

a) smoothness

b) durability

c) glossy face

d) color

2 / 50

2. *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

3 / 50

3. The trees yielding hard wood is

a) shisham

b) chir

c) deodar

d) pine

4 / 50

4. The trees yielding softwood is

a) sal & teak

b) chir & deodar

c) sisham & sal

d) none of the above

5 / 50

5. *Duco is the trade name for

a) bituminous paint

b) oil paint

c) cellulose paint

d) water paint

6 / 50

6. *A good quality stone must absorb water less than

a) 2.50%

b) 5%

c) 10%

d) 20%

7 / 50

7. The quick lime as it comes from kilns is called

a) milk lime

b) hydraulic lime

c) lump lime

d) hydrated lime

8 / 50

8. Advantage of clamp burning as compared to kiln burning is

a) less initial cost

b) takes less time

c) when a large number of bricks are required

d) none of the above

9 / 50

9. The base in a paint has the following function

a) it forms the body of the paint

b) it reduces the shrinkage cracks

c) it reinforces the films of the paint after it has dried and prevents the penetration of paint to lower surfaces

d) all of the above

10 / 50

10. Which of the following is a mineral?

a) quartzite

b) laterite

c) calcareous rock

d) calcite

11 / 50

11. *The type of paint whose main constituent is white or colored cement and is used to protect plastered surfaces, brickwork, masonry in damp places is called

a) luminous paint

b) cement paint

c) bituminous paint

d) anticorrosive paint

12 / 50

12. *The main purpose of seasoning is

a) to make the timber fire-resistant

b) to remove the moisture from the timber at a uniform rate

c) to make the timber waterproof

d) none of the above

13 / 50

13. Timber can be made reasonably fire-resistant

a) by soaking it in ammonium sulfate

b) by applying tar paint

c) by pumping creosote oil into timber under high pressure

d) none of the above

14 / 50

14. *The defects in wood due to hardening is

a) knots

b) rind galls

c) burls

d) none of the above

15 / 50

15. Bull nose bricks are not used in

a) walls

b) rounding off sharp corners

c) arches

d) pillars

16 / 50

16. *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

17 / 50

17. *Brass is an alloy of

a) copper and zinc

b) copper and tin

c) copper and nickel

d) copper and chromium

18 / 50

18. *Color of granite is

a) brown

b) green

c) grey or pink

d) all of the above

19 / 50

19. *Quartzite is a

a) sedimentary rock

b) metamorphic rock

c) organic rock

d) calcareous rock

20 / 50

20. The amount of insoluble residue & residual retained (OPC) on IS90 sieve

a) 1.5% & 10%

b) 4% & 10%

c) 10% & 1.5%

d) 1.5% & 4%

21 / 50

21. *Turpentine oil is used in paints as a

a) base

b) thinner

c) drier

d) vehicle

22 / 50

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

a) the height

b) the diameter

c) annual rings

d) piths

23 / 50

23. *The best primer used for structural steel work is

a) zinc oxide

b) red lead

c) white lead

d) iron oxide

24 / 50

24. 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

25 / 50

25. 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

26 / 50

26. A badly mixed cement concrete results in

a) segregation

b) bleeding

c) honeycombing

d) none of the above

27 / 50

27. The solvent used in cement paints is

a) turpentine

b) water

c) spirit

d) kerosene

28 / 50

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

a) 20%

b) 30%

c) 40%

d) 50%

29 / 50

29. An artificial stone made from pieces of marble and cement and used for floor facing of walls, etc., is known as

a) mosaic

b) terrazzo

c) marble

d) none of the above

30 / 50

30. The building stone can be dressed very easily

a) just after quarrying

b) after seasoning

c) after some months of quarrying

d) any time

31 / 50

31. *The liquid part of the paint is called

a) pigment

b) vehicle

c) solvent

d) drier

32 / 50

32. Find the one which is not used in quarrying

a) gun powder

b) gun cotton

c) marble powder

d) dynamite

33 / 50

33. *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

34 / 50

34. Most weather-resisting metamorphic rock is

a) lime stone

b) slate

c) marble

d) quartzite

35 / 50

35. Muller is concerned with

a) ground the base of paint

b) cohesion & adhesion

c) preparation of paint

d) all of the above

36 / 50

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

a) black

b) blue

c) white

d) yellow

37 / 50

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

a) igneous

b) sedimentary

c) metamorphic

d) none of the above

38 / 50

38. The initial and final setting times of quick setting cement are

a) 15 minutes and 45 minutes

b) 20 minutes and one hour

c) 5 minutes and 30 minutes

d) 5 minutes and 10 minutes

39 / 50

39. The fire clay contains pure

a) Lime

b) oxide of iron

c) hydrated aluminium silicate

d) mangesium

40 / 50

40. The process of mixing sand with the powdered natural soil to improve the quality is known as

a) moulding

b) tempering

c) pugging

d) blending

41 / 50

41. *The undesirable properties of cement are due to the formation of

a) dicalcium silicate

b) tricalcium silicate

c) tricalcium aluminate

d) tetracalcium aluminate

42 / 50

42. Which of the following has the lowest crushing strength

a) basalt

b) granite

c) diorite

d) laterite

43 / 50

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

a) 0%

b) 1%

c) 2%

d) 20%

44 / 50

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

a) slate

b) sandstone

c) limestone

d) basalt

45 / 50

45. Plastic asphalt is

a) a mixture of cement and asphalt

b) a natural asphalt

c) a refinery product

d) none of the above

46 / 50

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

a) slate

b) gneiss

c) limestone

d) granite

47 / 50

47. 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

48 / 50

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

a) 10cm

b) 20cm

c) 30cm

d) 40cm

49 / 50

49. *The lime suitable for use underwater is

a) fat lime

b) poor lime

c) hydraulic lime

d) all of the above

50 / 50

50. Stone generally used for railway ballast is

a) sandstone

b) dolomite

c) marble

d) basalt or trap, granite

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Construction Materials Online Test – Paper 3

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