Building Materials MCQs Set-10

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

Mulberry

Deodar

Sal

Mahogany

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

Phenol formaldehyde

Carbamide

All of these

Melamine-formaldehyde

3. Mastic asphalt is

Elastic

Fire proof

Water proof

All of these

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

Kneading

Moulding

Drying

Pugging

5. Cement is said to be of good quality if

Its color is not greenish grey

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

6. Lacquer is

Spirit varnish

Distemper

None of these

Oil paint

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

12

10

17

15

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

450

425

500

400

9. Polymerization helps to improve the property of

Strength

Rigidity

All of these

Elasticity

10. Rapid hardening cement contains

Tetra-calcium alumino-ferrite

Tri-calcium aluminate

Di-calcium silicate

Tri-calcium silicate

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11. Duco is one of the patent forms of

Plastic paints

Emulsion paints

Cellulose paints

Bituminous paints

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

King closer

Queen closer

Closer

Squint brick

13. The percentage of water for normal consistency, is

20% to 30%

15% to 25%

10% to 25%

5% to 15%

14. The normal consistency of ordinary Portland cement is about

10 %

30 %

20 %

40 %

15. Quartzite, a metamorphic stone is

Crystalline

All of these

Brittle

Hard

16. The silica is used for preparing

Lining for glass furnaces

All of these

Silica bricks

Coke oven

17. The stones obtained by blasting are used as

Aggregates for concrete

Ballast in railways

Road metal

All of these

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

9 kg/mm^2

5 kg/mm^2

15 kg/mm^2

13 kg/mm^2

19. The moisture content in a well seasoned timber is

15 % to 20 %

10 % to 12 %

100 %

4 % to 6 %

20. Quartzite is a

Calcareous rock

Metamorphic rock

Argillaceous rock

Siliceous rock

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

King closer

Closer

Squint brick

Queen closer

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

2

4

3

1

23. Wrought iron is used for

Structural works in beams

Small sized water pipes

None of these

Columns and struts

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

Pure clay, sandy clay, calcareous clay

Sandy clay, calcareous clay, pure clay

Calcareous clay, pure clay, sandy clay

None of these

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

Titanium steel

Carbon steel

Invar

Stainless steel

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

Co-polymerization

None of these

Addition polymerization

Condensation polymerization

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

Sal

Teak

Chir

Shishum

28. Manganese steels

All of these

Are non-magnetic

Possess low coefficient of expansion

Possess high electrical resistance

29. Priming consists of

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

None to these

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

30. The plastics made from cellulose resin

All of these

Are tough and strong

Possess excellent electrical properties

Are as clear as glass

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

None of these

0.50

0.60

0.40

32. Pick up the plutonic rock from the following:

All of these

Granite

Dolerite

Basalt

33. Plaster of Paris is obtained by calcining

Gypsum

Bauxite

Lime stone

None of these

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

Bessemer process

Cementation process

Crucible process

Open hearth process

35. Expanded metal is

Used for reinforced concrete in road pavements

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

All of these

Manufactured from steel sheets

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

Red lead

Zinc white

Titanium white

White lead

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

Blown bitumen

Bitumen-emulsion

Cut-back bitumen

Plastic bitumen

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

Strip

Slate

Plank

Board

39. The cement becomes unsound by the presence of excess

Sulphur

Lime

All of these

Magnesia

40. Formula for quick lime, is

CaCO₃

CO3CO2

None to these

Ca(OH)₂

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

Top face

Shorter side

Bottom face

Longer side

Building Materials MCQs Set-10

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