Building Materials MCQs Set-10

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1. Mastic asphalt is

All of these

Fire proof

Elastic

Water proof

2. Lacquer is

None of these

Oil paint

Distemper

Spirit varnish

3. 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

4. The normal consistency of ordinary Portland cement is about

30 %

20 %

40 %

10 %

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

Mahogany

Mulberry

Deodar

Sal

6. Quartzite, a metamorphic stone is

Crystalline

Brittle

Hard

All of these

7. Rapid hardening cement contains

Di-calcium silicate

Tri-calcium silicate

Tetra-calcium alumino-ferrite

Tri-calcium aluminate

8. The percentage of water for normal consistency, is

15% to 25%

20% to 30%

5% to 15%

10% to 25%

9. The stones obtained by blasting are used as

Ballast in railways

Aggregates for concrete

Road metal

All of these

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

Shorter side

Top face

Bottom face

Longer side

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

Pugging

Moulding

Drying

Kneading

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

Condensation polymerization

None of these

Addition polymerization

Co-polymerization

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

1

4

2

3

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

Shishum

Sal

Teak

Chir

15. Polymerization helps to improve the property of

Strength

Elasticity

All of these

Rigidity

16. Pick up the plutonic rock from the following:

Basalt

Granite

Dolerite

All of these

17. The cement becomes unsound by the presence of excess

Lime

All of these

Sulphur

Magnesia

18. Priming consists of

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

None to these

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

19. Manganese steels

Are non-magnetic

All of these

Possess low coefficient of expansion

Possess high electrical resistance

20. Formula for quick lime, is

CO3CO2

CaCO₃

None to these

Ca(OH)₂

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21. The plastics made from cellulose resin

Are as clear as glass

Possess excellent electrical properties

All of these

Are tough and strong

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

400

500

450

425

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

Melamine-formaldehyde

All of these

Carbamide

Phenol formaldehyde

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

15

10

12

17

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

Squint brick

Queen closer

Closer

King closer

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

Zinc white

White lead

Titanium white

Red lead

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

Cut-back bitumen

Plastic bitumen

Blown bitumen

Bitumen-emulsion

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

Board

Plank

Slate

Strip

29. Quartzite is a

Calcareous rock

Metamorphic rock

Siliceous rock

Argillaceous rock

30. The silica is used for preparing

All of these

Silica bricks

Lining for glass furnaces

Coke oven

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31. 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

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

Closer

King closer

Queen closer

Squint brick

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

Cementation process

Open hearth process

Bessemer process

Crucible process

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

9 kg/mm^2

15 kg/mm^2

5 kg/mm^2

13 kg/mm^2

35. Duco is one of the patent forms of

Plastic paints

Emulsion paints

Cellulose paints

Bituminous paints

36. Expanded metal is

All of these

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

Manufactured from steel sheets

Used for reinforced concrete in road pavements

37. Wrought iron is used for

None of these

Columns and struts

Structural works in beams

Small sized water pipes

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

Stainless steel

Titanium steel

Invar

Carbon steel

39. Plaster of Paris is obtained by calcining

Gypsum

Bauxite

None of these

Lime stone

40. The moisture content in a well seasoned timber is

100 %

4 % to 6 %

15 % to 20 %

10 % to 12 %

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

0.60

None of these

0.40

0.50

Building Materials MCQs Set-10

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