Building Materials MCQs Set-10

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

Pugging

Kneading

Drying

Moulding

2. The silica is used for preparing

All of these

Coke oven

Lining for glass furnaces

Silica bricks

3. Rapid hardening cement contains

Tetra-calcium alumino-ferrite

Tri-calcium silicate

Di-calcium silicate

Tri-calcium aluminate

4. Pick up the plutonic rock from the following:

Granite

All of these

Basalt

Dolerite

5. Mastic asphalt is

Elastic

Fire proof

All of these

Water proof

6. The moisture content in a well seasoned timber is

10 % to 12 %

4 % to 6 %

15 % to 20 %

100 %

7. Duco is one of the patent forms of

Plastic paints

Bituminous paints

Emulsion paints

Cellulose paints

8. Manganese steels

Are non-magnetic

Possess low coefficient of expansion

All of these

Possess high electrical resistance

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

Plastic bitumen

Bitumen-emulsion

Blown bitumen

Cut-back bitumen

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

Titanium steel

Invar

Stainless steel

Carbon steel

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11. Lacquer is

None of these

Oil paint

Distemper

Spirit varnish

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

Phenol formaldehyde

All of these

Carbamide

Melamine-formaldehyde

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

Closer

Queen closer

Squint brick

King closer

14. Priming consists of

8 parts of white lead, one part 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

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

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

Sal

Chir

Teak

Shishum

16. The cement becomes unsound by the presence of excess

Lime

Magnesia

Sulphur

All of these

17. Wrought iron is used for

None of these

Structural works in beams

Columns and struts

Small sized water pipes

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

Calcareous clay, pure clay, sandy clay

Sandy clay, calcareous clay, pure clay

Pure clay, sandy clay, calcareous clay

None of these

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

2

4

1

3

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

Mahogany

Deodar

Mulberry

Sal

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21. The percentage of water for normal consistency, is

15% to 25%

10% to 25%

5% to 15%

20% to 30%

22. The stones obtained by blasting are used as

Aggregates for concrete

Road metal

Ballast in railways

All of these

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

Co-polymerization

Addition polymerization

None of these

Condensation polymerization

24. Formula for quick lime, is

None to these

CaCO₃

CO3CO2

Ca(OH)₂

25. Polymerization helps to improve the property of

Rigidity

Strength

All of these

Elasticity

26. The normal consistency of ordinary Portland cement is about

10 %

40 %

20 %

30 %

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

White lead

Red lead

Zinc white

Titanium white

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

Crucible process

Bessemer process

Cementation process

Open hearth process

29. 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

30. Expanded metal is

Manufactured from steel sheets

All of these

Used for reinforced concrete in road pavements

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

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31. The plastics made from cellulose resin

Are as clear as glass

Possess excellent electrical properties

All of these

Are tough and strong

32. Plaster of Paris is obtained by calcining

Gypsum

Bauxite

Lime stone

None of these

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

King closer

Closer

Queen closer

Squint brick

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

Longer side

Bottom face

Top face

Shorter side

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

Board

Slate

Strip

Plank

36. Quartzite, a metamorphic stone is

Hard

Brittle

Crystalline

All of these

37. 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

38. Quartzite is a

Siliceous rock

Calcareous rock

Metamorphic rock

Argillaceous rock

39. Cement is said to be of good quality if

Its color is not greenish grey

None of these

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

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

12

15

17

10

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

400

500

450

425

Building Materials MCQs Set-10

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