Building Materials MCQs Set-10

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1. The silica is used for preparing

Coke oven

All of these

Lining for glass furnaces

Silica bricks

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

Queen closer

Squint brick

King closer

Closer

3. The plastics made from cellulose resin

Are as clear as glass

Are tough and strong

Possess excellent electrical properties

All of these

4. Plaster of Paris is obtained by calcining

None of these

Bauxite

Lime stone

Gypsum

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

King closer

Closer

Queen closer

Squint brick

6. Duco is one of the patent forms of

Cellulose paints

Emulsion paints

Bituminous paints

Plastic paints

7. The percentage of water for normal consistency, is

10% to 25%

15% to 25%

20% to 30%

5% to 15%

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

17

12

15

10

9. Formula for quick lime, is

CaCO₃

CO3CO2

None to these

Ca(OH)₂

10. Mastic asphalt is

Elastic

Fire proof

All of these

Water proof

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11. Manganese steels

Possess low coefficient of expansion

All of these

Possess high electrical resistance

Are non-magnetic

12. Quartzite is a

Argillaceous rock

Siliceous rock

Metamorphic rock

Calcareous rock

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

425

400

500

450

14. Rapid hardening cement contains

Tri-calcium aluminate

Tri-calcium silicate

Di-calcium silicate

Tetra-calcium alumino-ferrite

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

Kneading

Drying

Moulding

Pugging

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

Mahogany

Sal

Deodar

Mulberry

17. The cement becomes unsound by the presence of excess

All of these

Lime

Magnesia

Sulphur

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

Blown bitumen

Cut-back bitumen

Plastic bitumen

Bitumen-emulsion

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

0.40

0.60

None of these

0.50

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

Invar

Titanium steel

Carbon steel

Stainless steel

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21. Lacquer is

Spirit varnish

None of these

Distemper

Oil paint

22. Polymerization helps to improve the property of

All of these

Strength

Elasticity

Rigidity

23. Pick up the plutonic rock from the following:

Dolerite

Granite

Basalt

All of these

24. Expanded metal is

Used for reinforced concrete in road pavements

All of these

Manufactured from steel sheets

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

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

Addition polymerization

Co-polymerization

None of these

Condensation polymerization

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

Shishum

Chir

Sal

Teak

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

Pure clay, sandy clay, calcareous clay

None of these

Calcareous clay, pure clay, sandy clay

Sandy clay, calcareous clay, pure clay

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

Top face

Bottom face

Longer side

Shorter side

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

2

3

4

1

30. Wrought iron is used for

Structural works in beams

None of these

Columns and struts

Small sized water pipes

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31. Quartzite, a metamorphic stone is

Crystalline

All of these

Hard

Brittle

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

Red lead

White lead

Titanium white

Zinc white

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

Phenol formaldehyde

Carbamide

Melamine-formaldehyde

All of these

34. The normal consistency of ordinary Portland cement is about

20 %

40 %

10 %

30 %

35. The stones obtained by blasting are used as

All of these

Ballast in railways

Road metal

Aggregates for concrete

36. Cement is said to be of good quality if

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

None of these

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

Its color is not greenish grey

37. 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

38. 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

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

Board

Slate

Strip

Plank

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

15 kg/mm^2

13 kg/mm^2

9 kg/mm^2

5 kg/mm^2

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41. The moisture content in a well seasoned timber is

100 %

15 % to 20 %

4 % to 6 %

10 % to 12 %

Building Materials MCQs Set-10

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