Building Materials MCQs Set-10

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1. Plaster of Paris is obtained by calcining

Bauxite

Lime stone

None of these

Gypsum

2. Lacquer is

Oil paint

None of these

Spirit varnish

Distemper

3. The silica is used for preparing

Silica bricks

Coke oven

Lining for glass furnaces

All of these

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

Blown bitumen

Plastic bitumen

Cut-back bitumen

Bitumen-emulsion

5. Formula for quick lime, is

Ca(OH)₂

None to these

CO3CO2

CaCO₃

6. Pick up the plutonic rock from the following:

All of these

Dolerite

Granite

Basalt

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

Deodar

Mulberry

Sal

Mahogany

8. Quartzite is a

Argillaceous rock

Siliceous rock

Calcareous rock

Metamorphic rock

9. The plastics made from cellulose resin

Possess excellent electrical properties

Are tough and strong

All of these

Are as clear as glass

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

Co-polymerization

Condensation polymerization

Addition polymerization

None of these

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

Squint brick

Closer

King closer

Queen closer

12. Quartzite, a metamorphic stone is

Crystalline

Hard

Brittle

All of these

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

All of these

Carbamide

Melamine-formaldehyde

Phenol formaldehyde

14. Rapid hardening cement contains

Tri-calcium aluminate

Tri-calcium silicate

Tetra-calcium alumino-ferrite

Di-calcium silicate

15. Manganese steels

Possess high electrical resistance

Are non-magnetic

Possess low coefficient of expansion

All of these

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

Strip

Slate

Board

Plank

17. The normal consistency of ordinary Portland cement is about

30 %

20 %

10 %

40 %

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

Bessemer process

Open hearth process

Crucible process

Cementation process

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

Chir

Sal

Shishum

Teak

20. Mastic asphalt is

Elastic

Water proof

All of these

Fire proof

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21. The moisture content in a well seasoned timber is

100 %

15 % to 20 %

10 % to 12 %

4 % to 6 %

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

Bottom face

Longer side

Top face

Shorter side

23. Polymerization helps to improve the property of

Elasticity

Rigidity

All of these

Strength

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

10

17

12

15

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

Zinc white

Titanium white

Red lead

White lead

26. The stones obtained by blasting are used as

Ballast in railways

Aggregates for concrete

Road metal

All of these

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

13 kg/mm^2

15 kg/mm^2

5 kg/mm^2

9 kg/mm^2

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

0.50

None of these

0.60

0.40

29. The cement becomes unsound by the presence of excess

Magnesia

Lime

All of these

Sulphur

30. Expanded metal is

Used for reinforced concrete in road pavements

Manufactured from steel sheets

All of these

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

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

2

1

4

3

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

Invar

Carbon steel

Stainless steel

Titanium steel

33. The percentage of water for normal consistency, is

10% to 25%

5% to 15%

15% to 25%

20% to 30%

34. Wrought iron is used for

Small sized water pipes

Structural works in beams

None of these

Columns and struts

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

None of these

Sandy clay, calcareous clay, pure clay

Pure clay, sandy clay, calcareous clay

Calcareous clay, pure clay, sandy clay

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

Drying

Kneading

Moulding

Pugging

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

400

450

425

500

38. Duco is one of the patent forms of

Plastic paints

Emulsion paints

Bituminous paints

Cellulose paints

39. 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

40. Priming consists of

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

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

None to these

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

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41. Cement is said to be of good quality if

None of these

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

Its color is not greenish grey

Building Materials MCQs Set-10

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