Building Materials MCQs Set-10

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1. The plastics made from cellulose resin

Are tough and strong

All of these

Possess excellent electrical properties

Are as clear as glass

2. Quartzite, a metamorphic stone is

All of these

Crystalline

Hard

Brittle

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

Cementation process

Open hearth process

Crucible process

Bessemer process

4. Rapid hardening cement contains

Tri-calcium silicate

Di-calcium silicate

Tetra-calcium alumino-ferrite

Tri-calcium aluminate

5. 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

6. Plaster of Paris is obtained by calcining

Lime stone

Gypsum

None of these

Bauxite

7. Duco is one of the patent forms of

Bituminous paints

Emulsion paints

Plastic paints

Cellulose paints

8. Manganese steels

Possess high electrical resistance

Possess low coefficient of expansion

All of these

Are non-magnetic

9. Cement is said to be of good quality if

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

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

None of these

Its color is not greenish grey

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

Phenol formaldehyde

Melamine-formaldehyde

Carbamide

All of these

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

450

425

500

400

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

Sal

Mahogany

Mulberry

Deodar

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

Blown bitumen

Bitumen-emulsion

Cut-back bitumen

Plastic bitumen

14. Lacquer is

Spirit varnish

Distemper

Oil paint

None of these

15. Priming consists of

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

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 one part of linseed oil

16. Pick up the plutonic rock from the following:

Dolerite

Basalt

All of these

Granite

17. Expanded metal is

Used for reinforced concrete in road pavements

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

Manufactured from steel sheets

All of these

18. The stones obtained by blasting are used as

All of these

Ballast in railways

Road metal

Aggregates for concrete

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

Titanium steel

Invar

Stainless steel

Carbon steel

20. Quartzite is a

Argillaceous rock

Siliceous rock

Calcareous rock

Metamorphic rock

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

Teak

Sal

Shishum

Chir

22. The cement becomes unsound by the presence of excess

All of these

Magnesia

Lime

Sulphur

23. The moisture content in a well seasoned timber is

4 % to 6 %

15 % to 20 %

10 % to 12 %

100 %

24. Mastic asphalt is

All of these

Elastic

Water proof

Fire proof

25. The percentage of water for normal consistency, is

5% to 15%

10% to 25%

15% to 25%

20% to 30%

26. Polymerization helps to improve the property of

Rigidity

Strength

Elasticity

All of these

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

17

10

15

12

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

2

4

1

3

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

Queen closer

King closer

Squint brick

Closer

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

Board

Slate

Strip

Plank

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

Longer side

Bottom face

Top face

Shorter side

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

Titanium white

Red lead

Zinc white

White lead

33. The silica is used for preparing

Coke oven

All of these

Lining for glass furnaces

Silica bricks

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

Moulding

Drying

Kneading

Pugging

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

Squint brick

Queen closer

King closer

Closer

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

Co-polymerization

None of these

Addition polymerization

Condensation polymerization

37. Wrought iron is used for

None of these

Columns and struts

Small sized water pipes

Structural works in beams

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

Calcareous clay, pure clay, sandy clay

Pure clay, sandy clay, calcareous clay

None of these

Sandy clay, calcareous clay, pure clay

39. Formula for quick lime, is

CO3CO2

CaCO₃

None to these

Ca(OH)₂

40. The normal consistency of ordinary Portland cement is about

40 %

10 %

20 %

30 %

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

0.40

0.60

0.50

None of these

Building Materials MCQs Set-10

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