Building Materials MCQs Set-10

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1. Rapid hardening cement contains

Di-calcium silicate

Tri-calcium silicate

Tetra-calcium alumino-ferrite

Tri-calcium aluminate

2. Quartzite is a

Siliceous rock

Argillaceous rock

Metamorphic rock

Calcareous rock

3. Quartzite, a metamorphic stone is

Hard

Crystalline

All of these

Brittle

4. The normal consistency of ordinary Portland cement is about

10 %

30 %

20 %

40 %

5. The percentage of water for normal consistency, is

10% to 25%

5% to 15%

20% to 30%

15% to 25%

6. 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

7. Duco is one of the patent forms of

Emulsion paints

Plastic paints

Cellulose paints

Bituminous paints

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

Red lead

Titanium white

White lead

Zinc white

9. Formula for quick lime, is

CO3CO2

Ca(OH)₂

CaCO₃

None to these

10. 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

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11. Polymerization helps to improve the property of

All of these

Elasticity

Rigidity

Strength

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

1

2

4

3

13. The stones obtained by blasting are used as

Road metal

Ballast in railways

All of these

Aggregates for concrete

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

Closer

King closer

Queen closer

Squint brick

15. The cement becomes unsound by the presence of excess

Lime

Magnesia

All of these

Sulphur

16. Pick up the plutonic rock from the following:

All of these

Granite

Basalt

Dolerite

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

15 kg/mm^2

9 kg/mm^2

13 kg/mm^2

5 kg/mm^2

18. The plastics made from cellulose resin

Possess excellent electrical properties

Are as clear as glass

Are tough and strong

All of these

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

10

12

15

17

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

Cut-back bitumen

Blown bitumen

Bitumen-emulsion

Plastic bitumen

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21. Expanded metal is

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

Manufactured from steel sheets

Used for reinforced concrete in road pavements

All of these

22. Plaster of Paris is obtained by calcining

Bauxite

Lime stone

None of these

Gypsum

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

Phenol formaldehyde

Carbamide

Melamine-formaldehyde

All of these

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

Kneading

Moulding

Drying

Pugging

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

425

400

450

500

26. Manganese steels

Possess high electrical resistance

Are non-magnetic

Possess low coefficient of expansion

All of these

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

Mulberry

Mahogany

Deodar

Sal

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

Addition polymerization

Condensation polymerization

Co-polymerization

None of these

29. Wrought iron is used for

Columns and struts

None of these

Small sized water pipes

Structural works in beams

30. 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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31. Mastic asphalt is

All of these

Fire proof

Elastic

Water proof

32. Cement is said to be of good quality if

None of these

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

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

Its color is not greenish grey

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

Titanium steel

Invar

Carbon steel

Stainless steel

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

Bessemer process

Crucible process

Cementation process

Open hearth process

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

Shorter side

Top face

Bottom face

Longer side

36. The moisture content in a well seasoned timber is

100 %

15 % to 20 %

4 % to 6 %

10 % to 12 %

37. The silica is used for preparing

Coke oven

All of these

Lining for glass furnaces

Silica bricks

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

Slate

Board

Plank

Strip

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

Squint brick

Closer

King closer

Queen closer

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

Shishum

Teak

Sal

Chir

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41. Lacquer is

None of these

Distemper

Spirit varnish

Oil paint

Building Materials MCQs Set-10

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