Building Materials MCQs Set-10

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

Sal

Deodar

Mulberry

Mahogany

2. 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

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

Cut-back bitumen

Bitumen-emulsion

Plastic bitumen

Blown bitumen

4. Pick up the plutonic rock from the following:

Dolerite

All of these

Granite

Basalt

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

Chir

Sal

Teak

Shishum

6. Wrought iron is used for

Small sized water pipes

Structural works in beams

Columns and struts

None of these

7. Polymerization helps to improve the property of

Rigidity

All of these

Strength

Elasticity

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

4

3

2

1

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

400

450

500

425

10. Formula for quick lime, is

CO3CO2

None to these

CaCO₃

Ca(OH)₂

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

Queen closer

Closer

King closer

Squint brick

12. Quartzite, a metamorphic stone is

Hard

Brittle

Crystalline

All of these

13. Rapid hardening cement contains

Di-calcium silicate

Tetra-calcium alumino-ferrite

Tri-calcium aluminate

Tri-calcium silicate

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

Sandy clay, calcareous clay, pure clay

Pure clay, sandy clay, calcareous clay

Calcareous clay, pure clay, sandy clay

None of these

15. Plaster of Paris is obtained by calcining

Gypsum

Lime stone

Bauxite

None of these

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

Titanium steel

Invar

Carbon steel

Stainless steel

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

10

17

12

15

18. Mastic asphalt is

Water proof

Elastic

Fire proof

All of these

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

Phenol formaldehyde

Melamine-formaldehyde

All of these

Carbamide

20. The cement becomes unsound by the presence of excess

Lime

Magnesia

All of these

Sulphur

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21. 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

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

None to these

22. The silica is used for preparing

All of these

Silica bricks

Lining for glass furnaces

Coke oven

23. The plastics made from cellulose resin

Are tough and strong

Are as clear as glass

All of these

Possess excellent electrical properties

24. Quartzite is a

Siliceous rock

Metamorphic rock

Argillaceous rock

Calcareous rock

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

Addition polymerization

Co-polymerization

None of these

Condensation polymerization

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

Plank

Board

Strip

Slate

27. The normal consistency of ordinary Portland cement is about

10 %

20 %

30 %

40 %

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

Kneading

Pugging

Drying

Moulding

29. 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

Crucible process

Cementation process

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

Titanium white

White lead

Zinc white

Red lead

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

Longer side

Shorter side

Bottom face

Top face

32. 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

33. Manganese steels

Possess low coefficient of expansion

Are non-magnetic

All of these

Possess high electrical resistance

34. The moisture content in a well seasoned timber is

10 % to 12 %

15 % to 20 %

100 %

4 % to 6 %

35. The stones obtained by blasting are used as

Ballast in railways

Road metal

Aggregates for concrete

All of these

36. Cement is said to be of good quality if

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

Its color is not greenish grey

None of these

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

37. Duco is one of the patent forms of

Cellulose paints

Plastic paints

Bituminous paints

Emulsion paints

38. Lacquer is

Spirit varnish

None of these

Distemper

Oil paint

39. The percentage of water for normal consistency, is

5% to 15%

10% to 25%

20% to 30%

15% to 25%

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

0.50

None of these

0.40

0.60

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

13 kg/mm^2

5 kg/mm^2

15 kg/mm^2

9 kg/mm^2

Building Materials MCQs Set-10

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