Building Materials MCQs Set-10

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1. The moisture content in a well seasoned timber is

10 % to 12 %

4 % to 6 %

100 %

15 % to 20 %

2. The coefficient of hardness of stones used in road work should be greater than

17

10

15

12

3. The timber having maximum resistance against white ants, is obtained from

Sal

Chir

Teak

Shishum

4. In order of increasing percentage of silica, the correct sequence is

Calcareous clay, pure clay, sandy clay

Sandy clay, calcareous clay, pure clay

Pure clay, sandy clay, calcareous clay

None of these

5. The frog of the brick in a brick masonry is generally kept on

Bottom face

Shorter side

Top face

Longer side

6. Cement is said to be of good quality if

Its color is not greenish grey

None of these

A handful of cement thrown into a bucket of water does not float

One feels cool by thrusting one's hand in the cement bag

7. The plastics made from cellulose resin

All of these

Are tough and strong

Are as clear as glass

Possess excellent electrical properties

8. For obtaining vinyl chloride acetate, the method used, is

Co-polymerization

Condensation polymerization

Addition polymerization

None of these

9. The portion of a brick cut to form angles other than right angles in plan, is known as

Closer

King closer

Queen closer

Squint brick

10. Which of the following timbers is suitable for making sports goods?

Mulberry

Sal

Deodar

Mahogany

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11. Quartzite, a metamorphic stone is

All of these

Brittle

Hard

Crystalline

12. The process of decarbonising the pig iron completely and then adding proper percentage of carbon for manufacturing steel, is called

Cementation process

Crucible process

Bessemer process

Open hearth process

13. Which one of the following polymers is obtained from condensation polymerization?

Melamine-formaldehyde

All of these

Carbamide

Phenol formaldehyde

14. The process of mixing clay, water and other ingredients to make brick is known as

Moulding

Kneading

Drying

Pugging

15. The type of steel used for precision levelling staff, is

Stainless steel

Titanium steel

Invar

Carbon steel

16. The percentage of water for normal consistency, is

5% to 15%

10% to 25%

15% to 25%

20% to 30%

17. Polymerization helps to improve the property of

Rigidity

Strength

Elasticity

All of these

18. Rapid hardening cement contains

Tri-calcium silicate

Tri-calcium aluminate

Tetra-calcium alumino-ferrite

Di-calcium silicate

19. Quartzite is a

Siliceous rock

Metamorphic rock

Argillaceous rock

Calcareous rock

20. Mastic asphalt is

All of these

Elastic

Water proof

Fire proof

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21. The normal consistency of ordinary Portland cement is about

20 %

30 %

40 %

10 %

22. Priming consists of

None to these

8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil

One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil

One part of white lead, 8 parts of chalk and one part of linseed oil

23. Expanded metal is

Manufactured from steel sheets

All of these

Used for reinforced concrete in road pavements

Measured in term of SWM (short way mesh) and LWM (long way mesh)

24. Plaster of Paris is obtained by calcining

Bauxite

Gypsum

Lime stone

None of these

25. Whitworth compressed steel is obtained when molten steel is subjected to a pressure of

13 kg/mm^2

9 kg/mm^2

15 kg/mm^2

5 kg/mm^2

26. The portion of the brick without a triangular corner equal to half the width and half the length, is called

Queen closer

Closer

King closer

Squint brick

27. Pick up the plutonic rock from the following:

Basalt

Granite

Dolerite

All of these

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

Plank

Strip

Board

Slate

29. If water required for 1 bag of cement is 30 liters, the water cement ratio is :

0.40

None of these

0.60

0.50

30. For one cubic metre of brick masonry, number of bricks required, is

425

500

450

400

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31. The most commonly used base for timber painting, is

Red lead

Zinc white

Titanium white

White lead

32. For filling cracks in masonry structures, the type of bitumen used, is

Bitumen-emulsion

Plastic bitumen

Cut-back bitumen

Blown bitumen

33. The cement becomes unsound by the presence of excess

Lime

All of these

Sulphur

Magnesia

34. Manganese steels

Are non-magnetic

Possess high electrical resistance

All of these

Possess low coefficient of expansion

35. Lacquer is

Oil paint

Spirit varnish

None of these

Distemper

36. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is

2

4

1

3

37. Wrought iron is used for

Columns and struts

Structural works in beams

Small sized water pipes

None of these

38. The stones obtained by blasting are used as

Ballast in railways

Aggregates for concrete

Road metal

All of these

39. Formula for quick lime, is

None to these

Ca(OH)₂

CaCO₃

CO3CO2

40. The silica is used for preparing

Lining for glass furnaces

All of these

Coke oven

Silica bricks

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41. Duco is one of the patent forms of

Cellulose paints

Plastic paints

Bituminous paints

Emulsion paints

Building Materials MCQs Set-10

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