Building Materials MCQs Set-12

Page 1 of 4

1. A stone is rejected if it absorbs water more than

20 %

15 %

5 %

10 %

2. Basalt is

Metamorphic rock

Intrusive igneous rock

Extrusive igneous rock

Sedimentary rock

3. Lime stone is not a

Sedimentary rock

Stratified rock

Metamorphic rock

Aqueous rock

4. The size of mould for bricks, is generally kept

10% larger than specified size

Equal to specified size

A little large to specified size

A little small to specified size

5. Snowcrete is one of the patent forms of

Distempers

Water proof cement paints

Cellulose paints

Enamel paints

6. During smelting process, the combination of fuel in the furnace

Carbon mono-oxide reacts with Fe2O3 to form iron and liberates CO2

Forms carbon dioxide

All the above

Carbon dioxide with carbon forms carbon mono-oxide

7. Soundness test of cement determines

Durability

Ultimate strength

Initial setting

Quality of free lime

8. Seasoning is

Painting with sodium silicate

Creosoting

Coating with tar

A process of removing sap

9. The most commonly used synthetic abrasive is

Silicon

All of these

Boric acid

Aluminium carbide

10. Wrought iron contains carbon about

0.1% to 0.25%

1.5% to 5.5%

None to these

0.5% to 1.75%

Page 2 of 4

11. Name the type of cement from the following for canal linings:

Rapid hardening cement

Sulphate resisting cement

Quick setting cement

Pozzolana cement

12. According to ISI, bitumen is classified into

4 grades

10 grades

2 grades

8 grades

13. Geologically, marble is known as

Metamorphic rock

Stratified rock

Igneous rock

Sedimentary rock

14. Iron ore may contain

Phosphorus and manganese

All of these

Carbon

Silicon

15. Jhumb bricks are

Kutcha

None of these

Over burnt

Under burnt

16. Pig iron is manufactured from the ores by

Dressing

Smelting

Calcination and roasting

All of these

17. The rocks in which argil (or clay) predominates, are called

Argillaceous rocks

Calcareous rocks

Igneous rocks

Siliceous rocks

18. Rocks formed due to alteration of original structure due to heat and excessive pressure are called

Metamorphic rocks

None of these

Sedimentary rocks

Igneous rocks

19. Turpentine oil is used in paints as

Base

Vehicle

Thinner

Drier

20. Cast iron is used for

None of these

Columns and struts

Structural works in beams

Small sized water pipes

Page 3 of 4

21. The thermosetting plastic

All of these

At 127°C to 177°C permanently set and further application of heat does not soften it

Chars at 343°C

Becomes rigid when moulded at suitable pressure and temperature

22. The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as

Rindgalls

Knots

None of these

Burls

23. For construction of structures under water, the type of lime used, is

Pure lime

Fat lime

Quick lime

Hydraulic lime

24. Stucco paints are suitable for

(B) Brick walls

(D) Neither (A) nor (B)

(A) Stone masonry

(C) Both (A) and (B)

25. Galvanising means covering iron with a thin coat of

Tin

Zinc

Coal tar

Glaze

26. Commonly used thinner in

Cellulose paints is ethyl acetate

Lacquer paints, is alcohol

Oil paints, is naphtha

All of these

27. The rocks formed by gradual deposition, are called

None of these

Metamorphic rocks

Sedimentary rocks

Igneous rocks

28. French polish is

Oil paint

None to these

Spirit varnish

Distemper

29. Refractory bricks resist

Dampness

All of these

Chemical action

High temperature

30. Stones used for ornamental work must be

Hard

Heavy

Soft

Light

Page 4 of 4

31. Plastic

Consists of natural or synthetic binders

Finished products are rigid and stable at normal temperature

All of these

Is an organic substance

32. Ultimate strength to cement is provided by

Tri-calcium silicate

Tetra calcium alumino ferrite

Tri-calcium aluminate

Di-calcium silicate

33. The cracks caused by shrinkage of the exterior surface of the wood exposed to atmosphere, are called:

Heart shakes

Wind cracks

Twisted fibres

Radial shakes

34. Bitumen completely dissolves in

Carbon bisulphide

Coal tar

All of these

Chloroform

35. Apiece of sawn timber whose cross-sectional dimensions exceed 5 cm, in one direction and 20 cm in the other direction, is called a

Deal

Cant

Strip

Baulk

Building Materials MCQs Set-12

Related

Leave a ReplyCancel reply

Secured Payments

Protection

Building Materials MCQs Set-12

Share this Now with Friends:

Related

Leave a ReplyCancel reply

Secured Payments

Protection