Building Materials MCQs Set-10

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1. Duco is one of the patent forms of

Plastic paints

Cellulose paints

Bituminous paints

Emulsion paints

2. 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)

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

Open hearth process

Bessemer process

Cementation process

Crucible process

4. The cement becomes unsound by the presence of excess

All of these

Sulphur

Lime

Magnesia

5. The stones obtained by blasting are used as

All of these

Road metal

Aggregates for concrete

Ballast in railways

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

Closer

King closer

Squint brick

Queen closer

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

Titanium white

Red lead

Zinc white

White lead

8. Plaster of Paris is obtained by calcining

Gypsum

Bauxite

Lime stone

None of these

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

Strip

Board

Slate

Plank

10. The silica is used for preparing

Lining for glass furnaces

Silica bricks

All of these

Coke oven

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

Drying

Moulding

Pugging

Kneading

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

Invar

Titanium steel

Carbon steel

Stainless steel

13. Quartzite, a metamorphic stone is

Brittle

Hard

All of these

Crystalline

14. Pick up the plutonic rock from the following:

Dolerite

Basalt

All of these

Granite

15. Lacquer is

Distemper

Oil paint

Spirit varnish

None of these

16. Mastic asphalt is

All of these

Water proof

Fire proof

Elastic

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

0.40

0.60

None of these

0.50

18. The plastics made from cellulose resin

Possess excellent electrical properties

All of these

Are as clear as glass

Are tough and strong

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

Sandy clay, calcareous clay, pure clay

Calcareous clay, pure clay, sandy clay

None of these

Pure clay, sandy clay, calcareous clay

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

2

1

4

3

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

Melamine-formaldehyde

All of these

Phenol formaldehyde

Carbamide

22. Rapid hardening cement contains

Tetra-calcium alumino-ferrite

Di-calcium silicate

Tri-calcium aluminate

Tri-calcium silicate

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

15

10

12

17

24. Formula for quick lime, is

CaCO₃

CO3CO2

None to these

Ca(OH)₂

25. The percentage of water for normal consistency, is

5% to 15%

10% to 25%

15% to 25%

20% to 30%

26. Priming consists of

One part of white lead, 8 parts 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

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

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

Longer side

Shorter side

Top face

Bottom face

28. Cement is said to be of good quality if

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

None of these

Its color is not greenish grey

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

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

Sal

Mahogany

Mulberry

Deodar

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

13 kg/mm^2

15 kg/mm^2

9 kg/mm^2

5 kg/mm^2

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

Closer

Squint brick

King closer

Queen closer

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

450

425

400

500

33. Quartzite is a

Argillaceous rock

Metamorphic rock

Calcareous rock

Siliceous rock

34. Polymerization helps to improve the property of

All of these

Elasticity

Rigidity

Strength

35. The moisture content in a well seasoned timber is

15 % to 20 %

10 % to 12 %

4 % to 6 %

100 %

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

Blown bitumen

Cut-back bitumen

Plastic bitumen

Bitumen-emulsion

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

None of these

Addition polymerization

Condensation polymerization

Co-polymerization

38. The normal consistency of ordinary Portland cement is about

40 %

20 %

30 %

10 %

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

Sal

Chir

Shishum

Teak

40. Manganese steels

Possess high electrical resistance

Are non-magnetic

All of these

Possess low coefficient of expansion

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41. Wrought iron is used for

Small sized water pipes

None of these

Structural works in beams

Columns and struts

Building Materials MCQs Set-10

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