Building Materials MCQs Set-10

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1. Duco is one of the patent forms of

Bituminous paints

Cellulose paints

Emulsion paints

Plastic paints

2. The normal consistency of ordinary Portland cement is about

40 %

30 %

10 %

20 %

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

Teak

Shishum

Sal

Chir

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

None of these

Pure clay, sandy clay, calcareous clay

Sandy clay, calcareous clay, pure clay

Calcareous clay, pure clay, sandy clay

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

King closer

Squint brick

Queen closer

Closer

6. The cement becomes unsound by the presence of excess

Magnesia

Sulphur

Lime

All of these

7. Cement is said to be of good quality if

None of these

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

Its color is not greenish grey

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

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

3

1

2

4

9. The moisture content in a well seasoned timber is

4 % to 6 %

100 %

10 % to 12 %

15 % to 20 %

10. Wrought iron is used for

Small sized water pipes

Columns and struts

Structural works in beams

None of these

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

None of these

0.40

0.60

0.50

12. Formula for quick lime, is

CO3CO2

None to these

CaCO₃

Ca(OH)₂

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

Deodar

Mahogany

Sal

Mulberry

14. Rapid hardening cement contains

Tetra-calcium alumino-ferrite

Di-calcium silicate

Tri-calcium silicate

Tri-calcium aluminate

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

Queen closer

King closer

Closer

Squint brick

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

17

15

10

12

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

Titanium white

Zinc white

White lead

Red lead

18. Expanded metal is

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

Used for reinforced concrete in road pavements

Manufactured from steel sheets

All of these

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

Open hearth process

Cementation process

Bessemer process

Crucible process

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

Stainless steel

Carbon steel

Invar

Titanium steel

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21. Pick up the plutonic rock from the following:

Granite

All of these

Basalt

Dolerite

22. The plastics made from cellulose resin

Are as clear as glass

Possess excellent electrical properties

All of these

Are tough and strong

23. The silica is used for preparing

All of these

Silica bricks

Lining for glass furnaces

Coke oven

24. Manganese steels

All of these

Possess high electrical resistance

Possess low coefficient of expansion

Are non-magnetic

25. Quartzite is a

Metamorphic rock

Argillaceous rock

Siliceous rock

Calcareous rock

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

Bitumen-emulsion

Blown bitumen

Cut-back bitumen

Plastic bitumen

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

Phenol formaldehyde

Carbamide

Melamine-formaldehyde

All of these

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

5 kg/mm^2

15 kg/mm^2

9 kg/mm^2

13 kg/mm^2

29. The stones obtained by blasting are used as

Aggregates for concrete

Ballast in railways

Road metal

All of these

30. Lacquer is

Spirit varnish

Distemper

Oil paint

None of these

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

Addition polymerization

Condensation polymerization

Co-polymerization

None of these

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

Pugging

Drying

Kneading

Moulding

33. Quartzite, a metamorphic stone is

Brittle

All of these

Hard

Crystalline

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

Slate

Board

Strip

Plank

35. Polymerization helps to improve the property of

All of these

Strength

Rigidity

Elasticity

36. Priming consists of

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

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

None to these

37. The percentage of water for normal consistency, is

5% to 15%

20% to 30%

15% to 25%

10% to 25%

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

Shorter side

Longer side

Top face

Bottom face

39. Mastic asphalt is

Water proof

All of these

Fire proof

Elastic

40. Plaster of Paris is obtained by calcining

Gypsum

Lime stone

Bauxite

None of these

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

400

450

425

500

Building Materials MCQs Set-10

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