Building Materials MCQs Set-10

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1. Quartzite is a

Calcareous rock

Siliceous rock

Metamorphic rock

Argillaceous rock

2. Quartzite, a metamorphic stone is

Crystalline

All of these

Hard

Brittle

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

Plastic bitumen

Blown bitumen

Cut-back bitumen

Bitumen-emulsion

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

Pure clay, sandy clay, calcareous clay

Calcareous clay, pure clay, sandy clay

Sandy clay, calcareous clay, pure clay

None of these

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

5 kg/mm^2

15 kg/mm^2

13 kg/mm^2

9 kg/mm^2

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

Condensation polymerization

Co-polymerization

Addition polymerization

None of these

7. Duco is one of the patent forms of

Plastic paints

Cellulose paints

Emulsion paints

Bituminous paints

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

King closer

Queen closer

Closer

Squint brick

9. Manganese steels

Possess high electrical resistance

Possess low coefficient of expansion

All of these

Are non-magnetic

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

500

425

400

450

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11. Polymerization helps to improve the property of

Rigidity

Strength

Elasticity

All of these

12. The cement becomes unsound by the presence of excess

Magnesia

Sulphur

All of these

Lime

13. Lacquer is

Distemper

None of these

Oil paint

Spirit varnish

14. Mastic asphalt is

Fire proof

Water proof

All of these

Elastic

15. Rapid hardening cement contains

Di-calcium silicate

Tri-calcium silicate

Tri-calcium aluminate

Tetra-calcium alumino-ferrite

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

Mulberry

Mahogany

Deodar

Sal

17. Formula for quick lime, is

None to these

Ca(OH)₂

CO3CO2

CaCO₃

18. The plastics made from cellulose resin

Are tough and strong

All of these

Are as clear as glass

Possess excellent electrical properties

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

Drying

Moulding

Kneading

Pugging

20. 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

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

Red lead

Titanium white

White lead

Zinc white

22. The percentage of water for normal consistency, is

5% to 15%

15% to 25%

10% to 25%

20% to 30%

23. Expanded metal is

All of these

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

Used for reinforced concrete in road pavements

Manufactured from steel sheets

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

Strip

Board

Plank

Slate

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

Longer side

Top face

Shorter side

Bottom face

26. Cement is said to be of good quality if

Its color is not greenish grey

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

None of these

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

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

Shishum

Chir

Teak

Sal

28. The stones obtained by blasting are used as

Aggregates for concrete

All of these

Road metal

Ballast in railways

29. The silica is used for preparing

All of these

Coke oven

Silica bricks

Lining for glass furnaces

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

Carbon steel

Titanium steel

Stainless steel

Invar

32. The moisture content in a well seasoned timber is

100 %

15 % to 20 %

10 % to 12 %

4 % to 6 %

33. Pick up the plutonic rock from the following:

Basalt

All of these

Dolerite

Granite

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

Open hearth process

Crucible process

Bessemer process

Cementation process

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

3

1

2

4

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

15

12

10

17

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

Closer

Squint brick

King closer

Queen closer

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

Phenol formaldehyde

Melamine-formaldehyde

Carbamide

All of these

39. The normal consistency of ordinary Portland cement is about

30 %

40 %

20 %

10 %

40. Wrought iron is used for

Columns and struts

None of these

Small sized water pipes

Structural works in beams

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41. Plaster of Paris is obtained by calcining

Gypsum

None of these

Bauxite

Lime stone

Building Materials MCQs Set-10

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